Alfredo
Vellido
/ publications
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2012
Ortega-Martorell, S., Lisboa, P.J.G., Vellido, A.,Julià-Sapé, M., Arús, C. Non-negative Matrix
Factorisation methods for the spectral decomposition of MRS data from
human brain tumours. BMC Bioinformatics,
13:38. (draft)
Vellido, A., Romero, E., Julià-Sapé, M., Majós, C., Moreno-Torres, À., and Arús, C. Robust discrimination of glioblastomas from metastatic brain tumors on the basis of single-voxel proton MRS. NMR in Biomedicine. Accepted for publication. doi: 10.1002/nbm.1797 (draft)
Ribas, V.J., Vellido, A., Ruiz-Rodríguez, J.C., Rello, J. Severe sepsis mortality prediction with logistic regression over latent factors. Expert Systems with Applications, 39(2), 1937-1943. (draft)
Arizmendi, C., Vellido, A., Romero, E. Classification of human brain tumours from MRS data using discrete wavelet transform and Bayesian neural networks. Expert Systems with Applications, 39(5), 5223-5232.
Tosi, A., Vellido, A.
Cartogram representation of the batch-SOM magnification factor. In ESANN 2012, accepted.
Vellido, A., Martín-Guerrero,
J.D., Lisboa, P.J.G. Making machine learning
models interpretable. In ESANN 2012, accepted.
Ortega-Martorell, S. Lisboa, P.J.G., Vellido, A., Simões, R.V., Pumarola, M., Julià-Sapé, M., Arús, C. Delimitation of the solid tumour area in glioblastomas using Non-Negative Matrix Factorization, In ISBI 2012, accepted
Ruiz, H., Ortega-Martorell,
S., Jarman, I.H., Vellido, A., Romero, E., Martín, J.D. and Lisboa, P.J.G. Towards interpretable
classifiers with blind signal separation, in IEEE Proceedings of the
International Joint Conference on Neural Networks (IJCNN 2012), Brisbane, Australia.
2011
Ortega-Martorell, S., Lisboa, P.J.G., Vellido, A., Simões, R.V.,
Julià-Sapé, M., and Arús, C. Brain tumor pathological area delimitation
through Non-negative Matrix Factorization, BioDM' Workshop, The IEEE 11th
International Conference on Data Mining Workshops (ICDMW'11) pp.1058-1063
Cruz-Barbosa, R.,
Bautista-Villavicencio, D., Vellido, A. On the computation of the
Geodesic Distance with an application to dimensionality reduction in a
neuro-oncology problem. In Procs. of The 16th Iberoamerican
Congress on
Pattern Recognition (CIARP 2011), LNCS 7042, pp.483-490.
Ribas, V., Ruiz-Rodríguez,
J.D., Wojdel, A., Caballero-López, J., Ruiz-Sanmartín A., Rello, J. and
Vellido, A. Severe sepsis mortality prediction with Relevance
Vector Machines. In Procs. of the 33rd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), pp.100-103.
Arizmendi, C., Sierra, D.A., Vellido, A., Romero, E. Brain Tumour Classification Using Gaussian Decomposition and Neural Networks. In Procs. of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), pp.5645-5648.
Ortega-Martorell, S., Olier,
I., Vellido,
A., Lisboa, P.J.G., El-Deredy, W.
Comparing
independent component analysis and non-negative matrix factorisation in
the identification of event-related brain dynamics, 11th International Conference
on Cognitive Neuroscience (ICON XI),
Abstract A066, p.82.
Ortega-Martorell,
S., Vellido, A., Lisboa, P.J.G., Julià-Sapé, M., and Arús, C. Spectral
decomposition methods for the analysis of MRS information from human
brain tumours, In Procs. of the 2011 International Joint Conference on
Neural Networks (IJCNN 2011),
pp.3285-3292.
Cárdenas, M.I., Vellido, A.,
Olier, I., Rovira, X., Giraldo, J. Visualization of the phylogenetic
structure of G Protein-Coupled Receptor sequences using kernel and tree
methods, Eigth International Meeting on Computational Intelligence
Methods in Bioinformatics and Biostatistics, (CIBB 2011)
Ribas, V.J., Caballero-López, J., Saez de Tejada, A., Ruiz-Rodríguez,
J.C., Ruiz-Sanmartín,
A., Rello,
J., Vellido, A. Bayesian networks for ICU outcome prediction in sepsis
patients treated with statin drugs, Eigth International Meeting
on Computational
Intelligence Methods in Bioinformatics and Biostatistics, (CIBB 2011).
Lisboa, P.J.G., Jarman, I.H., Etchells, T.A. , Chambers, S.J., Bacciu, D., Whittaker, J., Garibaldi, J. M., Ortega-Martorell, S., Vellido, A., and Ellis, I.H. Discovering hidden pathways in bioinformatics, Eigth International Meeting on Computational Intelligence Methods in Bioinformatics and Biostatistics, (CIBB 2011).
Arizmendi, C., Vellido, A.,
Romero, E., Binary
Classification of Brain Tumours Using a Discrete Wavelet Transform and
Energy Criteria, In Procs. of the 2nd IEEE Latin American
Symposium on Circuits and Systems (LASCAS
2011), pp.1-4.
Vellido, A., Cárdenas,
M.I., Olier, I., Rovira, X., and Giraldo, J. A probabilistic
approach to the visual exploration of G Protein-Coupled Receptor
sequences, In Procs. of the 19th European Symposiun on
Artificial Neural Networks (ESANN
2011), pp.233-238.
Vellido, A., Martín, J.D., Rossi,
F., and Lisboa, P.J.G. Seeing is believing: The importance of visualization in
real-world machine learning applications, In Procs. of the 19th European Symposiun on
Artificial Neural Networks (ESANN
2011), pp.219-226.
Cruz-Barbosa, R.,
Bautista-Villavicencio, D., and Vellido, A. Comparative diagnostic
accuracy of linear and nonlinear feature extraction methods in a
neuro-oncology problem. In Procs. of the 3rd Mexican Conference on
Pattern Recognition (MCPR 2011)
LNCS, Vol.6718, 2011, pp.34-41.
Ribas, V., Caballero-López, J.,
Ruiz-Rodríguez, J.C., Ruiz Sanmartín, A., Rello, J., and Vellido, A. On the use of decision
trees for ICU outcome prediction in sepsis patients treated with
statins. In Procs. of the IEEE Symposium Series on Computational
Intelligence / IEEE Symposium on Computational Intelligence and Data
Mining (IEEE SSCI CIDM 2011),
pp.37-43.
Olier, I., Amengual, J. and Vellido, A. A variational Bayesian approach for the robust estimation of cortical silent periods from EMG time series of brain stroke patients. Neurocomputing, 74(9): 1301-1314.
Cruz, R., Vellido, A.,
Semi-supervised
analysis of human brain tumours from partially labeled MRS information,
using manifold learning models. International Journal
of Neural Systems. 21(1): 17-29.
2010
Vellido, A. Should you trust
what you see? Inroads into data visualization using generative
topographic mapping. 3rd International Conference of the
ERCIM WG on Computing & Statistics (ERCIM
2010), London, U.K.
Arizmendi, C.,
Hernández-Tamames, J., Romero, E., Vellido, A., del Pozo, F., Diagnosis
of Brain Tumours from Magnetic Resonance Spectroscopy using Wavelets
and Neural Networks. In Procs. of the 32nd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010) Buenos Aires, Argentina,
pp.6074-6077
Colas, F., Kok, J.N., and
Vellido, A. Finding Discriminative Subtypes of Aggressive Brain
Tumours using Magnetic Resonance Spectroscopy. In Procs. of the 32nd
Annual International Conference of the
IEEE Engineering in Medicine and Biology Society (EMBC 2010) Buenos Aires, Argentina
Vellido, A., Castro, F.,
Nebot, A. Clustering Educational Data. In Romero, C., Ventura, S.,
Pechenizkiy, M., Baker, R.S.J.d. (eds.) Handbook of Educational data Mining, CRC
Press, Taylor & Francis Group, pp.75-92.
Lisboa, P.J.G. Vellido, A. Tagliaferri, R. Napolitano, F. Ceccarelli, M. Martin-Guerrero, J.D. Biganzoli, E. Data Mining in Cancer Research, IEEE Computational Intelligence Magazine, 5(1), 14-18
Ortega-Martorell, S., Olier,
I., Vellido, A.,
Julià-Sapé, M., Arús, C. Spectral Prototype Extraction for the
discrimination of glioblastomas from metastases in a SV 1H-MRS
brain tumour database. ISMRM-ESMRMB
Joint Annual Meeting.
Lisboa, P.J.G., Vellido, A.,
Martín, J.D. Computational Intelligence in biomedicine: Some
contributions. In Procs. of the 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 429-438.
Olier, I., Amengual, J.,
Vellido, A. Segmentation of EMG time series using a variational
Bayesian approach for the robust estimation of cortical silent periods.
In Procs.
of the 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 439-444.
Olier, I., Vellido, A.,
Giraldo, J. Kernel Generative Topographic Mapping. In Procs. of the 18th
European Symposiun on
Artificial Neural Networks (ESANN
2010), 481-486.
Ortega-Martorell, S., Olier,
I., Vellido, A., Julià-Sapé, M., Arús, C. Spectral Prototype Extraction
for dimensionality reduction in brain tumour diagnosis. In Procs. of the 18th
European Symposiun on
Artificial Neural Networks (ESANN
2010), 445-450.
Cruz, R., Vellido, A. Semi-Supervised Geodesic Generative Topographic Mapping. Pattern Recognition Letters, 31(3), 202-209.
González-Navarro, F.F.,
Belanche-Muñoz, Ll.A.,
Romero, E., Vellido, A., Julià-Sapé, M., Arús, C. Feature and model selection
with discriminatory visualization for diagnostic classification of
brain tumours. Neurocomputing, 73(4-6), 622-632.
2009
Cruz, R., and Vellido, A.,
Semi-supervised
Outcome Prediction for a Type of Human Brain Tumour Using Partially
Labeled MRS Information. In Procs. of the Intelligent Data Engineering
and Automated Learning (IDEAL
2009) International Conference, Lecture Notes in Computer Science, LNCS 5788, 168-175
Olier, I., Vellido, A. Clustering and Visualization of Multivariate Time Series. In Soria-Olivas, E. et al. (eds.) The Handbook of Research on Machine Learning Applications and Trends: Algorithms, Methods, and Techniques, Vol.I, ch.8, pp.176-194. Information Science Reference, New York.
Vellido, A., Romero, E.,
González-Navarro, F.F., Belanche-Muñoz, Ll., Julià-Sapé, M., Arús, C.
Outlier exploration and diagnostic classification of a multi-centre 1H-MRS
brain tumour database. Neurocomputing, 72(13-15), 3085-3097.
Romero, E., Vellido, A., Julià-Sapé, M, and Arús, C. Discriminating glioblastomas from metastases in a SV 1H-MRS brain tumour database. In Proceedings of the 26th Annual Meeting of the European Society for Magnetic Resonance in Medicine and Biology (ESMRMB 2009), Antalya, Turkey, p.18.
Arizmendi, A., Vellido, A., Romero, E. Frequency Selection for the Diagnostic Characterization of Human Brain Tumours. In Procs. of the CCIA 2009.
Cruz, R., and Vellido, A. Comparative evaluation of Semi-Supervised Geodesic GTM. In The 4th International Conference on Hybrid Artificial Intelligence Systems (HAIS 2009). LNAI 5573, pp.344-351.
Romero, E., Vellido, A., and
Sopena, J.M. Feature selection with single-layer perceptrons for a
multicentre 1H-MRS brain tumour database. In The 10th International
Work-Conference on Artificial Neural Networks (IWANN 2009). LNCS 5517,
pp.1013–1020.
Vellido, A., and Lisboa, P.J.G. (eds.) Investigating Human Cancer with Computational Intelligence Techniques. In KES Recent Research Results series. Future Technology Press. ISBN: 978-0-9561516-0-5
Vellido, A. and Lisboa,
P.J.G. Preface to Investigating Human
Cancer with Computational Intelligence Techniques. In KES Recent
Research Results series. Future
Technology Press, vii-viii.
Nebot, A., Castro, F., Vellido, A., Julià-Sapé, M., and Arús, C. Rule-based assistance to brain tumour diagnosis using LR-FIR. In Investigating Human Cancer with Computational Intelligence Techniques. KES Recent Research Results series. Future Technology Press, 83-92.
Vellido, A., Julià-Sapé, M.,
Romero, E., and Arús, C. Exploratory characterization of a multi-centre
1H-MRS brain tumour database. In Investigating Human
Cancer with Computational Intelligence Techniques. KES Recent
Research Results series. Future
Technology Press, 55-67.
Schleif, F.-M., Biehl, M., and Vellido, A. Advances in machine learning and computational intelligence. Neurocomputing, 72(7-9), 1377-1378.
2008
Olier, I., Vellido, A.
Variational Bayesian Generative Topographic Mapping. Journal
of Mathematical Modelling and Algorithms, 7(4), 371-387.
Lisboa, P.J.G., Romero, E.,
Vellido,
A., Julià-Sapé,
M., and Arús, C. Classification, Dimensionality Reduction, and Maximally
Discriminatory Visualization of a Multicentre 1H-MRS
Database of Brain Tumors. In The Seventh International Conference on
Machine Learning and Applications (ICMLA'08),
613-618.
Cruz, R., Vellido, A. On the
Improvement of the Mapping Trustworthiness and Continuity of a Manifold
Learning Model. In Procs. of the 9th International Conference on Intelligent Data
Engineering and Automated Learning (IDEAL
2008). LNCS 5326,
266-273.
Vellido, A., Julià-Sapé, M., Romero, E.,
and Arús, C. Exploring outlierness and its causes in a 1H-MRS brain
tumour database. In Proceedings of e-TUMOUR Workshop ‘Towards Brain
Tumour Classification
by Molecular Profiling’, Valencia, Spain.
Vellido, A., Julià-Sapé, M., Romero, E.,
and Arús, C.
Nonlinear dimensionality reduction for the exploration of outliers in a
multicentre 1H-MRS database of brain tumours. In
Proceedings of the 25th
Annual Meeting of the European Society for Magnetic Resonance in
Medicine and Biology (ESMRMB).
Cruz, R., Vellido, A.
Geodesic Generative Topographic Mapping. In Proceedings of the 11th
Ibero-American
Conference on Artificial Intelligence (IBERAMIA
2008). LNAI 5290, 113-122.
Cruz, R., Vellido, A.
Unfolding the Manifold in Generative Topographic Mapping. In Proceedings of the 3rd
International Workshop on Hybrid Artificial Intelligence Systems (HAIS 2008). LNAI 5271, 392-399 .
Olier, I., Vellido, A.
Advances in Clustering and Visualization of Time Series using GTM
Through Time. Neural Networks, 21(7),
904-913. preprint
Castro, F., Vellido,
A., Nebot, À., and Minguillón, J. Detección de Estudiantes con
Comportamiento Atípico en Entornos de Aprendizaje e-Learning. In
Llamas-Nistal, M., Vaz de Carvalho, C., and Rueda Artunduaga, C. (eds.) TICAI2006: TICs para el
Aprendizaje de la Ingeniería, pp.23-30. IEEE, Sociedad de
Educación: Capítulos Español, Portugués y Colombiano.
Nebot, A., Castro, F., Vellido, A., Julià-Sapé, M. and Arús, C. Rule-based assistance to brain tumour diagnosis using LR-FIR. In Procs. of the 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2008). LNAI 5178, Vol. II, 173-180.
Vellido, A., Julià-Sapé, M., Romero, E. and Arús, C. Exploratory characterization of outliers in a multi-centre 1H-MRS brain tumour dataset. In Procs. of the 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2008). LNAI 5178, Vol. II, 189-196.
Vellido, A., Velazco, J.S.
Assessment of the effect of noise on an unsupervised feature selection
method for Generative Topographic Mapping. In 10th International
Conference on Enterprise Information Systems (ICEIS 2008).
Vellido, A., Velazco, J.S. The effect of noise and sample size on an unsupervised feature selection method for manifold learning. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 523-528.
Olier, I., Vellido, A. On the benefits for model regularization of a Variational formulation of GTM. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 1569-1576.
Olier, I., Vellido, A. A Variational Formulation for GTM Through Time. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 517-522.
Vellido, A., Biganzoli, E.,
Lisboa, P.J.G. Machine learning in cancer research: implications for
personalised medicine. In Procs. of the 16th European Symposiun on
Artificial Neural Networks (ESANN
2008), 55-64.
Romero, E., Julià-Sapé, M.,
Vellido, A. DSS-oriented exploration of a multi-centre magnetic
resonance spectroscopy brain tumour dataset through visualization. In Procs. of the 16th European
Symposiun on
Artificial Neural Networks (ESANN
2008), 95-100.
Cruz, R., Vellido, A.
Two-Stage Clustering of a Human Brain Tumour Dataset Using Manifold
Learning Models. In Proceedings of the International Conference on
Bio-inspired Systems
and Signal Processing, BIOSIGNALS 2008,
Funchal, Madeira, Portugal. INSTICC Press. pp.191-196.
Vellido, A., Lisboa,
P.J.G. Machine Learning in Human Cancer Research. In Svensson, H.A.
(Ed.): Neurocomputing
Research
Developments. Nova Publishers, 163-180.
2007
Olier, I., Vellido, A. Variational GTM. In 8th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2007), LNCS Vol.4881, 77-86. (pdf)
Cruz, R., Vellido, A. Mining a Human Brain Tumour Dataset for Clinical Decision Support : Advances in the AIDTumour Project. In MICAI 2007, Workshop on Data Mining Applications & Current Trends.
Olier, I., Vellido, A. A Variational Bayesian Formulation for GTM Through Time: Theoretical Foundations. Technical Report LSI-07-38-R.Universitat Politècnica de Catalunya, UPC, Barcelona, Spain. (download)
Olier, I., Vellido, A. A
Variational Bayesian Formulation for GTM: Theoretical Foundations.
Technical Report LSI-07-33-R.Universitat Politècnica de Catalunya, UPC,
Barcelona, Spain. (download)
Cruz, R., Vellido, A.
On the Influence of Class Information in the Two-Stage Clustering of a
Human Brain Tumour Dataset. In Procs. of the 6th
Mexican Conference on Artificial Intelligence (MICAI 2007). LNAI 4827, 472-482. (pdf)
Cruz, R., Vellido, A. On the Initialization of Two-Stage Clustering with class-GTM. In Proceedings of the 12th Conference of the Spanish Association for Artificial Intelligence, CAEPIA+TTIA 2007, LNAI Vol.4788, 50-59. (pdf)
Cruz, R., Vellido, A. Evaluation of a Two-Stage Clustering Procedure Using Class Information in Generative Topographic Mapping. In I.Rojas Ruiz and H. Pomares Cintas (eds.) Actas del II Simposio de Inteligencia Computacional (IEEE SICO 2007), Thomson, pp.17-24.
García, D.L. , Vellido, A. and Nebot, A., Finding relevant features for the churn analysis-oriented segmentation of a telecommunications market. In I.Rojas Ruiz and H. Pomares Cintas (eds.) Actas del II Simposio de Inteligencia Computacional (IEEE SICO 2007), Thomson, pp.301-310.
Vellido, A., Andrade,
A.O. Determination of feature relevance for the grouping of motor unit
action potentials through a generative mixture model. Biomedical Signal
Processing and Control, 2(2), 111-121.
Cruz, R., Vellido, A. Limits to the Use of Class Information in a GTM-based Two-Stage Clustering Procedure. In F.J.Ferrer-Troyano et al. (eds.), Actas del IV Taller Nacional de Minería de Datos y Aprendizaje (TAMIDA 2007), Thomson, pp.303-312.
Castro, F., Vellido, A.,
Nebot, A., Mugica, F. Applying Data Mining Techniques to e-Learning
Problems. In: Jain, L.C., Tedman, R.A. and
Tedman, D.K. (eds.) Evolution of
Teaching and Learning Paradigms in Intelligent Environment. Studies in Computational Intelligence,
Vol.62, Springer-Verlag, 183-221.
Vellido, A., Castro, F., Etchells, T.A., Nebot, A., and Mugica, F. Data Mining of Virtual Campus Data. In: Jain, L.C., Tedman, R.A and Tedman, D.K (eds.) Evolution of Teaching and Learning Paradigms in Intelligent Environment. Studies in Computational Intelligence, Vol.62, Springer-Verlag, 223-254.
Vellido, A., Lisboa,
P.J.G. Neural networks and other machine learning methods in cancer
research. In Procs. of IWANN 2007.LNCS Vol. 4507, 964-971. (pdf)
García, D.L. , Vellido, A. and Nebot, A., Identification of churn routes in the Brazilian telecommunications market. In Procs. of the 15th European Symposiun on Artificial Neural Networks, ESANN 2007, 585-590.
Vellido, A., Martí, E.,
Comas, J., Rodríguez-Roda, I., and Sabater, F. Exploring the ecological
status of human altered streams through Generative Topographic Mapping.
Environmental Modelling & Software, 22(7), 1053-1065.
(download).
García, D.L. , Vellido, A. and Nebot, A., Predictive Models in Churn Data Mining: A Review. Technical Report LSI-07-4-R, Universitat Politècnica de Catalunya, UPC, Barcelona, Spain. (download)
García, D.L, Vellido, A., and Nebot, A. Customer Continuity Management as a Foundation for Churn Data Mining. Technical Report LSI-07-2-R. Universitat Politècnica de Catalunya, UPC, Barcelona, Spain. (download)
Cruz, R. and Vellido, A., Elements of Generative Manifold Learning for semi-supervised tasks. Technical Report LSI-07-1-R. Universitat Politècnica de Catalunya, UPC, Barcelona, Spain. (download)
2006
Vellido, A., Missing data imputation through GTM as a mixture of t-distributions. Neural Networks, 19(10), 1624-1635. (download)
Cruz, R. and Vellido, A., Clustering of brain tumours through constrained manifold learning using class information. Learning'06 International Conference. 'Between Learning and Data Mining' special session, 3rd of October, Vilanova i la Geltrú, Spain.
Spate, J., Gibert, K., Sànchez-Marrè, M., Frank, E., Comas, J., Athanasiadis, I., and Vellido, A. Data Mining as a Tool for Analysing Environmental Systems. Learning'06 International Conference. 'Between Learning and Data Mining' special session, 3rd of October, Vilanova i la Geltrú, Spain.
Poveda, J. and Vellido, A. Neural Network Models for Language Acquisition: A Brief Survey. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 1346-1357.
Olier, I. and Vellido, A., Time Series Relevance Determination through a topology-constrained Hidden Markov Model. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 40-47. (download)
Vellido, A. , Etchells, T.A. , García, D.L. and Nebot, À., Describing customer loyalty to Spanish petrol stations through rule extraction. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 970-977.
Vellido, A., Assessment of an Unsupervised Feature Selection Method for Generative Topographic Mapping. 16th International Conference on Artificial Neural Networks (ICANN 2006), Athens, Greece. LNCS Vol.4132, 361-370. (download)
Cruz, R. and Vellido, A., On the improvement of brain tumour data clustering using class information, In Proc. of the 3rd European Starting AI Researcher Symposium (STAIRS'06), Riva del Garda, Italy.
Olier, I. and Vellido, A., Capturing the Dynamics of Multivariate Time Series Through Visualization Using Generative Topographic Mapping Through Time, In proceedings of the 1st IEEE International Conference on Engineering of Intelligent Systems, IEEE ICEIS'2006, Islamabad, Pakistán, pp.492-497. (download)
Etchells,T.A., Nebot, A., Vellido, A., Lisboa, P.J.G., and Múgica, F., Learning what is important: feature selection and rule extraction in a virtual course. In Proceedings of the 14th European Symposium on Artificial Neural Networks, ESANN 2006, Bruges, Belgium, 401-406.
Etchells, T.A., Vellido, A., Martí, E., Lisboa, P.J.G., and Comas, J., On the prediction of the ecological status of human-altered streams and its rule-based interpretation. 3rd Biennial meeting of the International Environmental Modelling and Software Society, iEMSs'2006. Data Mining Workshop.
Vellido, A., Comas, J., Cruz, R., and Martí, E., Finding relevant features for the characterization of the ecological status of human altered streams using a constrained mixture model. 3rd Biennial meeting of the International Environmental Modelling and Software Society, iEMSs'2006. Data Mining Workshop.
Vellido, A., Lisboa, P.J.G., and Vicente, D. Robust analysis of MRS brain tumour data using t-GTM. Neurocomputing, 69(7-9), 754-768. (pdf)
Andrade, A., and Vellido, A., (2006) Determining feature relevance for the grouping of motor unit action potentials through generative topographic mapping, In Proc. of the 25th IASTED International ConferenceModelling, Identification, and Control (MIC'06), Feb.6-8, Lanzarote, Canary Islands, Spain, pp.507-512. (pdf)
Vellido, A. and Lisboa, P.J.G., Handling outliers in brain tumour MRS data analysis through robust topographic mapping, Computers in Biology and Medicine, 36(10), 1049-1063. (download)
Vellido, A., Castro, F., Nebot, A., and Múgica, F., (2006) Characterization of atypical virtual campus usage behavior through robust generative relevance analysis, In Proc. of the Fifth IASTED International Conference on Web-Based Education (WBE 2006), Jan.23-25, Puerto Vallarta, México, pp.183-188.
Nebot, A., Castro, F., Múgica, F., and Vellido, A., (2006) Identification of fuzzy models to predict students performance in an e-learning environment, In Proc. of the Fifth IASTED International Conference on Web-Based Education (WBE 2006), Jan.23-25, Puerto Vallarta, México, pp.74-79. [Shortlisted for The Fifth International Competition of Ph.D. Students in the WBE Area]
2005
, (2005) Capturing the dynamics of multivariate time series through visualization using Generative Topographic Mapping Through Time. Technical Report LSI-05-52-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Castro, F. , Vellido, A. , Nebot, A. and Minguillón, J. (2005) Detecting atypical student behaviour on an e-learning system. VI Congreso Nacional de Informática Educativa; I Simposio Nacional de Tecnologías de la Información y las Comunicaciones en la Educación, SINTICE’2005, Granada, Spain, September 2005, 153-160.
Castro, F. , Vellido, A. , Nebot, A. and Minguillón, J. (2005) Finding relevant features to characterize student behavior on an e-learning system. In: International Conference on Frontiers in Education: Computer Science and Computer Engineering (FECS 2005), Las Vegas, Nevada, USA, June 2005.
, (2005) Comparative assessment of the robustness of missing data imputation through Generative Topographic Mapping, In Cabestany, J., Prieto, A., and Sandoval, F. (Eds.) Proc. of the IWANN 2005, Vilanova i la Geltru, Barcelona, Spain. LNCS Vol.3512, 771-778.
Vellido, A. (2005) Preliminary theoretical results on a feature relevance determination method for Generative Topographic Mapping. Technical Report LSI-05-13-R, Universitat Politècnica de Catalunya, UPC, Barcelona, Spain.
Vellido, A., Lisboa, P.J.G., and Vicente,D. (2005) Handling outliers and missing data in brain tumor clinical assessment usign t-GTM. In Proc. of the European Symposium on Artificial Neural Networks, ESANN 2005, Bruges, Belgium, 121-126.
Vellido, A. and Lisboa, P.J.G. (2005)
Functional topographic mapping for robust handling of outliers in brain
tumour data. In Proc. of the European Symposium on Artificial Neural
Networks, ESANN 2005, Bruges, Belgium, 133-138.
2004
Olier, I., and Vellido, A. (2004) Assessing the robustness of missing data imputation through Generative Topographic Mapping. ACIA Newsletter, 31, 14-20.
Vicente, D. and Vellido, A. (2004) Review of Hierarchical Models for Data Clustering and Visualization. In R.Giráldez, J.C. Riquelme, J.S. Aguilar-Ruiz (Eds.) Tendencias de la Minería de Datos en España. Red Española de Minería de Datos.
Alquézar, R., Belanche, L., Nebot, A., Romero, E., and Vellido, A. (2004) Investigación actual del grupo SOCO: Metodologías híbridas de Soft Computing. In R.Giráldez, J.C. Riquelme, J.S. Aguilar-Ruiz (Eds.) Tendencias de la Minería de Datos en España. Red Española de Minería de Datos.
Vellido, A. (2004) Missing data imputation through Generative Topographic Mapping as a mixture of t-distributions: Theoretical developments. Technical Report LSI-04-50-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A. (2004) Generative Topographic Mapping as a constrained mixture of Student t-distributions: Theoretical developments. Technical Report LSI-04-44-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vicente, D., Vellido, A., Martí, E., Comas, J., and Rodriguez-Roda, I. (2004), “Exploration of the ecological status of Mediterranean rivers: Clustering, visualizing and reconstructing streams data using Generative Topographic Mapping”. In W.I.T. Transactions on Information and Communication Technologies, Vol.33, 121-130.
Vellido, A., Olier, I., Martí, E., Comas, J., and Rodríguez-Roda, I. (2004) STREAMES project: Exploration of the ecological status of Mediterranean rivers using Generative Topographic Mapping. Poster presentation at BESAI 2004 - 4th ECAI Workshop on Binding Environmental Sciences and Artificial Intelligence. August 2004, Valencia, Spain.
Vellido, A., El-Deredy, W., and Lisboa, P.J.G. (2004) Studying embedded human EEG dynamics using Generative Topographic Mapping . Technical Report LSI-04-8-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A., and El-Deredy, W. (2004) Exploring dopamine-mediated reward processing through the analysis of EEG-measured gamma-band brain oscillations. Technical Report LSI-04-7-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
2003
Vellido, A., El-Deredy, W., and Lisboa, P.J.G. (2003) Selective Smoothing of the Generative Topographic Mapping. IEEE Transactions on Neural Networks, 14(4), 847-852.
Vellido, A., El-Deredy, W., Gruber, T., Zald, D.H., McGlone, F.P., and Müller, M.M. (2003) Reward predictability and oscillatory brain processes. In The Annual Computational Neuroscience Meeting (CNS'2003). Poster presentation. Alicante, Spain.
2002
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2002) Characterizing and Segmenting the On-Line Customer Market Using Neural Networks. In E-Commerce and Intelligent Methods. Heidelberg: Springer-Verlag, 101-119.
Vellido, A. (2002) Neural networks for B2C e-commerce analysis: some elements of best practice. In Proceedings of the 4th International Conference On Enterprise Information Systems (ICEIS 2002) Ciudad Real, Spain.
2001
Vellido, A and Lisboa, P.J.G (2001) An electronic commerce application of the Bayesian Framework for MLPs: the Effect of Marginalization and ARD. Neural Computing & Applications. 10(1), 3-11.
2000
Lisboa, P.J.G., Vellido, A. and Edisbury, B. (Editors, 2000) Business Applications of Neural Networks. Singapore: World Scientific.
Lisboa, P.J.G., Vellido, A. (2000) Preface: Business Applications of Neural Networks. In Business Applications of Neural Networks. Singapore: World Scientific.
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2000) Characterizing and segmenting the business-to-consumer e-commerce market using neural networks. In Business Applications of Neural Networks. Singapore: World Scientific.
Lisboa,
P.J.G., Vellido, A. and Wong, H. (2000)
Outstanding
Issues for Clinical Decision Support with Neural Networks. In Artificial
Neural Networks in Medicine and Biology. Springer, London, 63-71.
Vellido,
A., Lisboa, P.J.G. and Meehan, K. (2000)
The
Generative Topographic Mapping as a principled model for data
visualization and market segmentation: an electronic commerce case study.
International Journal of Computers, Systems, and Signals.
1(2), 119-138.
Vellido,
A, Lisboa, P.J.G and Meehan, K. (2000) Quantitative characterization
and prediction of on-line purchasing behaviour: a latent variable
approach.
International Journal of Electronic Commerce, 4(4),
83-104.
Lisboa.
P.J.G., Vellido, A. and Wong, H. (2000)
Bias
reduction in skewed binary classification with Bayesian neural networks.
Neural Networks. 13, 407-410.
Vellido, A., Lisboa, P.J.G. & Meehan, K. (2000) Segmenting the e-commerce market using the Generative Topographic Mapping. In Proceedings of the MICAI-2000, 470-481. Acapulco, México.
Vellido,
A., Lisboa, P.J.G. & Meehan, K. (2000)
A
systematic quantitative methodology for characterizing the
business-to-consumer e-commerce market. ACM SIGBIO Newsletter,
Vol.20(1), p.24.
1999
Vellido, A., Lisboa, P.J.G and Vaughan, J. (1999) Neural networks in business: a survey of applications (1992-1998) Expert Systems with Applications. 17, 51-70.
Vellido,
A., Lisboa, P.J.G and Meehan, K. (1999)
Segmentation
of the on-line shopping market using neural networks. Expert
Systems with Applications. 17, 303-314.
1998
Lisboa, P.J.G., Kirby, S.J.P., Vellido, A., Lee, Y.Y.B. and El-Deredy, W. (1998) Assessment of Statistical and Neural Network Methods in NMR Spectral Classification and Metabolite Selection. Nuclear Magnetic Resonance in Biomedicine. 11, 225-234.
Lisboa, P.J.G., Wong, H., Vellido, A., Kirby, S.P.J., Harris, P. and Swindell, R. (1998) Survival of Breast Cancer Patients Following Surgery: a Detailed Assessment of the Multi-Layer Perceptron and Cox’s Proportional Hazard Model. In Proceedings of the World Congress on Computational Intelligence, IJCNN'1998, 112-116. Anchorage, Alaska, USA.
Lisboa, P.J.G., Vellido, A., Aung, H., El-Deredy, W., Lee, Y.Y.B. and Kirby, S.P.J. (1998) Quantification of uncertainty in tissue characterisation with NMR Spectra. In Proceedings of the 6th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, Abstract 1851, Sidney, Australia.
Y. Lee,A. Vellido,W.
El-Deredy,S. Kirby,P. Lisboa (1998)
Neural
networks in practice-an example from magnetic resonance spectroscopy.
In Proc. of the IEE Colloquium on Intelligent Methods in Healthcare and
Medical Applications (Digest No. 1998/514)
1997
Lisboa, P.J.G., El-Deredy, W., Vellido, A., Etchells, T. and Pountney, D.C. (1997) Automatic Variable Selection and Rule Extraction Using Neural Networks. In Proceedings of the 15th IMACS World Congress on Scientific Computation, Modelling and Applied Mathematics, 461-466, Berlin, Germany
Lisboa, P.J.G, Branston, N.M., El-Deredy, W. and Vellido, A. (1997) Tissue Characterisation with NMR Spectroscopy; Current State and Future Prospects for the Application of Neural Networks Analysis. In Proceedings of the IEEE/INNS International Joint Conference on Neural Networks, IJCNN'1997, 1385-1390, Houston, USA, pp.1385-1390.
Lisboa, P.J.G., Vellido, A., El-Deredy, W. and Auer, D. (1997) Pattern Recognition Analysis of MRS:A Benchmark of Linear Statistical Methods and Neural Networks. In Proceedings of the 14th Annual Meeting of the European Society of Magnetic Resonance in Medicine and Biology, Abstract 224, Brussels, Belgium.
P. Lisboa,S. Kirby,A. Vellido,B. Lee (1997) Pattern recognition methods for MRS analysis and classification. In Proc. of the IEE Colloquium on Realising the Clinical Potential of Magnetic Resonance Spectroscopy: The Role of Pattern Recognition (Digest No: 1997/082)
Books and chapters in books
Vellido, A., Castro, F.,
Nebot, A. (2010) Clustering Educational Data. In Romero, C., Ventura,
S.,
Pechenizkiy, M., Baker, R.S.J.d. (eds.) Handbook of Educational data Mining, CRC
Press, Taylor & Francis Group, pp.75-92.
Olier, I., Vellido, A.
(2009) Clustering and Visualization
of Multivariate Time Series. In
Soria-Olivas, E. et al.
(eds.) The Handbook of Research on
Machine Learning Applications and Trends: Algorithms, Methods, and
Techniques, Vol.I, ch.8, pp.176-194. Information Science
Reference, New York.
Vellido, A., and Lisboa, P.J.G. (eds.) Investigating Human Cancer with Computational Intelligence Techniques. In KES Recent Research Results series. Future Technology Press. 2009. ISBN: 978-0-9561516-0-5
Vellido, A. and Lisboa,
P.J.G. (2009) Preface to Investigating
Human
Cancer with Computational Intelligence Techniques. In KES Recent
Research Results series. Future
Technology Press, vii-viii.
Nebot, A., Castro, F., Vellido, A., Julià-Sapé, M., and Arús, C. (2009) Rule-based assistance to brain tumour diagnosis using LR-FIR. In Investigating Human Cancer with Computational Intelligence Techniques. KES Recent Research Results series. Future Technology Press, 83-92.
Vellido, A., Julià-Sapé, M.,
Romero, E., and Arús, C. (2009) Exploratory characterization of a
multi-centre
1H-MRS brain tumour database. In Investigating Human
Cancer with Computational Intelligence Techniques. KES Recent
Research Results series. Future
Technology Press, 55-67.
Castro, F., Vellido,
A., Nebot, À., and Minguillón, J. (2008) Detección de Estudiantes
con
Comportamiento Atípico en Entornos de Aprendizaje e-Learning. In
Llamas-Nistal, M., Vaz de Carvalho, C., and Rueda Artunduaga, C. (eds.) TICAI2006: TICs para el
Aprendizaje de la Ingeniería, pp.23-30. IEEE, Sociedad de
Educación: Capítulos Español, Portugués y Colombiano.
Vellido, A., Lisboa, P.J.G. (2008) Machine Learning in Human Cancer Research. In Svensson, H.A. (Ed.): Neurocomputing Research Developments. Nova Publishers, 163-180.
Castro, F., Vellido, A., Nebot, A., Mugica, F. (2007) Applying Data Mining Techniques to e-Learning Problems. In: Jain, L.C., Tedman, R. and Tedman, D. (eds.) Evolution of Teaching and Learning Paradigms in Intelligent Environment. Studies in Computational Intelligence, Vol.62, Springer-Verlag, 183-221.
Vellido, A., Castro, F., Etchells, T.A., Nebot, A., and Mugica, F. (2007) Data Mining of Virtual Campus Data. In: Jain, L.C., Tedman, R. and Tedman, D. (eds.) Evolution of Teaching and Learning Paradigms in Intelligent Environment. Studies in Computational Intelligence, Vol.62, Springer-Verlag, 223-254.
Vicente, D. and Vellido, A. (2004) Review of Hierarchical Models for Data Clustering and Visualization. In R.Giráldez, J.C. Riquelme, J.S. Aguilar-Ruiz (Eds.) Tendencias de la Minería de Datos en España. Red Española de Minería de Datos.
Alquézar, R., Belanche, L., Nebot, A., Romero, E., and Vellido, A. (2004) Investigación actual del grupo SOCO: Metodologías híbridas de Soft Computing. In R.Giráldez, J.C. Riquelme, J.S. Aguilar-Ruiz (Eds.) Tendencias de la Minería de Datos en España. Red Española de Minería de Datos.
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2002) Characterizing and Segmenting the On-Line Customer Market Using Neural Networks. In E-Commerce and Intelligent Methods. Heidelberg: Springer-Verlag, 101-119
Lisboa, P.J.G., Vellido, A. and Edisbury, B. (Editors, 2000) Business Applications of Neural Networks. Singapore: World Scientific.
Lisboa, P.J.G., Vellido, A. (2000) Preface: Business Applications of Neural Networks. In Business Applications of Neural Networks. Singapore: World Scientific.
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2000) Characterizing and segmenting the business-to-consumer e-commerce market using neural networks. In Business Applications of Neural Networks. Singapore: World Scientific.
Lisboa, P.J.G., Vellido, A. and Wong, H. (2000) Outstanding Issues for Clinical Decision Support with Neural Networks. In Artificial Neural Networks in Medicine and Biology. Springer, London, 63-71
Journals
Ortega-Martorell, S., Lisboa, P.J.G., Vellido, A.,Julià-Sapé, M., Arús, C. (2012) Non-negative Matrix Factorisation methods for the spectral decomposition of MRS data from human brain tumours. BMC Bioinformatics, 13:38. (draft)
Vellido,
A., Romero, E., Julià-Sapé, M., Majós, C., Moreno-Torres,
À., and Arús, C. Robust discrimination of glioblastomas from metastatic brain
tumors on the basis of single-voxel proton MRS. NMR in
Biomedicine.
Accepted for publication. doi: 10.1002/nbm.1797
Ribas, V.J., Vellido, A.,
Ruiz-Rodríguez, J.C., Rello, J. (2012) Severe sepsis mortality
prediction with
logistic regression over latent factors. Expert
Systems with Applications, 39(2), 1937-1943.
Arizmendi,
C., Vellido, A., Romero, E. (2012) Classification of human brain tumours from
MRS data using discrete wavelet transform and Bayesian neural networks.
Expert Systems
with Applications, 39(5), 5223-5232.
Olier,
I., Amengual, J. and Vellido, A. (2011) A variational Bayesian
approach for
the robust estimation of cortical silent periods from EMG time series
of brain stroke patients. Neurocomputing,
74(9): 1301-1314.
Cruz, R., Vellido,
A., (2011) Semi-supervised
analysis of human brain tumours from partially labeled MRS information,
using manifold learning models. International
Journal
of Neural Systems. 21(1): 17-29.
Lisboa,
P.J.G. Vellido, A. Tagliaferri, R. Napolitano,
F. Ceccarelli, M. Martin-Guerrero, J.D. Biganzoli, E.
(2010) Data
Mining in Cancer Research, IEEE Computational
Intelligence
Magazine, 5(1), 14-18
Cruz, R., Vellido, A. (2010) Semi-Supervised Geodesic Generative Topographic Mapping. Pattern Recognition Letters, 31(3), 202-209.
González-Navarro, F.F.,
Belanche-Muñoz, Ll.A., Romero, E., Vellido, A., Julià-Sapé, M., Arús,
C. (2010) Feature and model selection with discriminatory visualization
for
diagnostic classification of brain tumours. Neurocomputing, 73(4-6), 622-632.
Vellido,
A., Romero, E., González-Navarro, F.F., Belanche-Muñoz, Ll.,
Julià-Sapé, M., Arús, C. (2009) Outlier exploration and diagnostic
classification of a multi-centre 1H-MRS brain tumour
database. Neurocomputing, 72(13-15), 3085-3097.
Schleif,
F.-M., Biehl, M.,
and Vellido, A. (2009) Advances in machine learning and computational
intelligence. Neurocomputing, 72(7-9), 1377-1378.
Olier, I., Vellido, A.
(2008) Variational Bayesian Generative Topographic Mapping. Journal
of Mathematical Modelling and Algorithms, 7(4), 371-387.
Olier, I., Vellido, A. (2008) Advances in Clustering and Visualization of Time Series using GTM Through Time. Neural Networks, 21(7), 904-913. preprint.
Vellido,
A., Andrade,
A.O. (2007) Determination of feature relevance for the grouping of
motor unit
action potentials through a generative mixture model. Biomedical Signal
Processing and Control, 2(2), 111-121.
Vellido, A., Martí, E.,
Comas, J., Rodríguez-Roda, I., and Sabater, F. (2007) Exploring the
ecological status of human altered streams through Generative
Topographic Mapping. Environmental Modelling & Software,
22(7),
1053-1065.
(download).
Vellido, A., (2006) Missing data imputation through GTM as a mixture of t-distributions. Neural Networks, 19(10), 1624-1635. (download)
Vellido, A., Lisboa, P.J.G., and Vicente, D. (2006) Robust analysis of MRS brain tumour data using t-GTM. Neurocomputing, 69(7-9), 754-768. (pdf)
Vellido, A. and Lisboa, P.J.G. (2006) Handling outliers in brain tumour MRS data analysis through robust topographic mapping, Computers in Biology and Medicine, 36(10), 1049-1063. (download)
Olier, I., and Vellido, A. (2004) Assessing the robustness of missing data imputation through Generative Topographic Mapping. ACIA Newsletter, 31, 14-20.
Vellido, A., El-Deredy, W., and Lisboa, P.J.G. (2003) Selective Smoothing of the Generative Topographic Mapping. IEEE Transactions on Neural Networks, 14(4), 847-852
Vellido, A and Lisboa, P.J.G. (2001) An electronic commerce application of the Bayesian Framework for MLPs: the Effect of Marginalization and ARD. Neural Computing & Applications. 10(1)
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2000) The Generative Topographic Mapping as a principled model for data visualization and market segmentation: an electronic commerce case study. International Journal of Computers, Systems, and Signals. 1(2), 119-138.
Vellido,
A, Lisboa, P.J.G and Meehan, K. (2000) Quantitative characterization
and prediction of on-line purchasing behaviour: a latent variable
approach.
International Journal of Electronic Commerce, 4(4),
83-104.
Lisboa.
P.J.G., Vellido, A. and Wong, H. (2000)
Bias
reduction in skewed binary classification with Bayesian neural networks.
Neural Networks. 13, 407-410.
Vellido, A., Lisboa, P.J.G. & Meehan, K. (2000) A systematic quantitative methodology for characterizing the business-to-consumer e-commerce market. ACM SIGBIO Newsletter, Vol.20(1), p.24.
Vellido,
A., Lisboa, P.J.G and Vaughan, J. (1999)
Neural
networks in business: a survey of applications (1992-1998) Expert
Systems with Applications. 17, 51-70.
Vellido,
A., Lisboa, P.J.G and Meehan, K. (1999)
Segmentation
of the on-line shopping market using neural networks. Expert
Systems with Applications. 17, 303-314.
Lisboa, P.J.G., Kirby, S.J.P., Vellido, A., Lee, Y.Y.B. and El-Deredy, W. (1998) Assessment of Statistical and Neural Network Methods in NMR Spectral Classification and Metabolite Selection. Nuclear Magnetic Resonance in Biomedicine. 11, 225-234.
Conferences and technical reports
Ruiz, H.,
Ortega-Martorell, S., Jarman, I.H., Vellido, A., Romero, E., Martín,
J.D. and Lisboa, P.J.G. (2012) Towards
interpretable classifiers with blind signal separation, in IEEE
Proceedings of the International Joint Conference on Neural Networks (IJCNN 2012), Brisbane, Australia.
Tosi, A.,
Vellido, A. (2012) Cartogram representation of the batch-SOM
magnification factor. In ESANN 2012,
accepted.
Vellido, A., Martín-Guerrero,
J.D., Lisboa, P.J.G. (2012) Making machine learning
models interpretable. In ESANN 2012, accepted.
Ortega-Martorell, S. Lisboa, P.J.G., Vellido,
A., Simões, R.V., Pumarola, M., Julià-Sapé, M., Arús, C. (2012)
Delimitation
of the solid tumour area in glioblastomas using Non-Negative
Matrix
Factorization, In ISBI 2012,
accepted
Ortega-Martorell, S.,
Lisboa, P.J.G., Vellido, A., Simões, R.V.,
Julià-Sapé, M., and Arús, C. (2011) Brain tumor pathological area delimitation
through Non-negative Matrix Factorization, BioDM' Workshop, The IEEE 11th
International Conference on Data Mining Workshops (ICDMW'11) pp.1058-1063
Cruz-Barbosa, R.,
Bautista-Villavicencio, D., Vellido, A. (2011) On the computation of the
Geodesic Distance with an application to dimensionality reduction in a
neuro-oncology problem. In Procs. of The 16th Iberoamerican
Congress on
Pattern Recognition (CIARP 2011), LNCS 7042, pp.483-490.
Ribas, V., Ruiz-Rodríguez,
J.D., Wojdel, A., Caballero-López, J., Ruiz-Sanmartín A., Rello, J. and
Vellido, A. (2011) Severe sepsis mortality prediction with Relevance
Vector Machines. In Procs. of the 33rd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), pp.100-103.
Arizmendi, C., Sierra, D.A., Vellido, A., Romero, E. (2011) Brain Tumour Classification Using Gaussian Decomposition and Neural Networks. In Procs. of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), pp.5645-5648.
Ortega-Martorell, S., Olier,
I., Vellido,
A., Lisboa, P.J.G., El-Deredy, W.
(2011) Comparing
independent component analysis and non-negative matrix factorisation in
the identification of event-related brain dynamics, 11th International Conference
on Cognitive Neuroscience (ICON XI),
Abstract A066, p.82.
Ortega-Martorell,
S., Vellido, A., Lisboa, P.J.G., Julià-Sapé, M., and Arús, C. (2011) Spectral
decomposition methods for the analysis of MRS information from human
brain tumours, In Procs. of the 2011 International Joint Conference on
Neural Networks (IJCNN 2011),
pp.3285-3292.
Cárdenas, M.I., Vellido, A.,
Olier, I., Rovira, X., Giraldo, J. (2011) Visualization of the phylogenetic
structure of G Protein-Coupled Receptor sequences using kernel and tree
methods, Eigth International Meeting on Computational Intelligence
Methods in Bioinformatics and Biostatistics, (CIBB 2011)
Ribas, V.J., Caballero-López, J., Saez de Tejada, A., Ruiz-Rodríguez,
J.C., Ruiz-Sanmartín,
A., Rello,
J., Vellido, A. (2011) Bayesian networks for ICU outcome prediction in sepsis
patients treated with statin drugs, Eigth International Meeting
on Computational
Intelligence Methods in Bioinformatics and Biostatistics, (CIBB 2011).
Lisboa, P.J.G., Jarman, I.H., Etchells, T.A. , Chambers, S.J., Bacciu, D., Whittaker, J., Garibaldi, J. M., Ortega-Martorell, S., Vellido, A., and Ellis, I.H. (2011) Discovering hidden pathways in bioinformatics, Eigth International Meeting on Computational Intelligence Methods in Bioinformatics and Biostatistics, (CIBB 2011).
Arizmendi, C., Vellido, A.,
Romero, E., (2011)Binary
Classification of Brain Tumours Using a Discrete Wavelet Transform and
Energy Criteria, In Procs. of the 2nd IEEE Latin American
Symposium on Circuits and Systems (LASCAS
2011), pp.1-4.
Vellido, A., Cárdenas,
M.I., Olier, I., Rovira, X., and Giraldo, J. (2011) A probabilistic
approach to the visual exploration of G Protein-Coupled Receptor
sequences, In Procs. of the 19th European Symposiun on
Artificial Neural Networks (ESANN
2011), pp.233-238.
Vellido, A., Martín, J.D., Rossi,
F., and Lisboa, P.J.G. (2011) Seeing is believing: The importance of visualization in
real-world machine learning applications, In Procs. of the 19th European Symposiun on
Artificial Neural Networks (ESANN
2011), pp.219-226.
Cruz-Barbosa, R., Bautista-Villavicencio, D., and Vellido, A. (2011) Comparative diagnostic accuracy of linear and nonlinear feature extraction methods in a neuro-oncology problem. In Procs. of the 3rd Mexican Conference on Pattern Recognition (MCPR 2011) LNCS, Vol.6718, 2011, pp.34-41.
Ribas, V., Caballero-López, J., Ruiz-Rodríguez, J.C., Ruiz Sanmartín, A., Rello, J., and Vellido, A. (2011) On the use of decision trees for ICU outcome prediction in sepsis patients treated with statins. In Procs. of the IEEE Symposium Series on Computational Intelligence / IEEE Symposium on Computational Intelligence and Data Mining (IEEE SSCI CIDM 2011), pp.37-43.
Vellido, A. Should you trust
what you see? Inroads into data visualization using generative
topographic mapping. (2010) 3rd International Conference of
the ERCIM WG on Computing & Statistics (ERCIM 2010), London, U.K.
Arizmendi, C.,
Hernández-Tamames, J., Romero, E., Vellido, A., del Pozo, F. (2010) Diagnosis
of Brain Tumours from Magnetic Resonance Spectroscopy using Wavelets
and Neural Networks. In Procs. of the 32nd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010) Buenos Aires, Argentina,
pp.6074-6077
Colas, F., Kok, J.N., and
Vellido, A. (2010) Finding Discriminative Subtypes of Aggressive Brain
Tumours using Magnetic Resonance Spectroscopy. In Procs. of the 32nd
Annual International Conference of the IEEE Engineering in Medicine and
Biology Society (EMBC 2010)
Buenos Aires, Argentina
Ortega-Martorell, S., Olier, I., Vellido, A., Julià-Sapé, M., Arús, C. (2010) Spectral Prototype Extraction for the discrimination of glioblastomas from metastases in a SV 1H-MRS brain tumour database. ISMRM-ESMRMB Joint Annual Meeting.
Lisboa, P.J.G., Vellido, A.,
Martín, J.D. (2010) Computational Intelligence in biomedicine: Some
contributions. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 429-438.
Olier,
I., Amengual, J., Vellido, A. (2010) Segmentation of EMG time series using a
variational Bayesian approach for the robust estimation of cortical
silent periods. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 439-444.
Olier, I., Vellido, A.,
Giraldo, J. (2010) Kernel Generative Topographic Mapping. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 481-486.
Ortega-Martorell,
S., Olier, I., Vellido, A., Julià-Sapé, M., Arús, C. (2010) Spectral Prototype
Extraction for dimensionality reduction in brain tumour diagnosis. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 445-450.
Cruz, R., and Vellido, A.,
Semi-supervised
Outcome Prediction for a Type of Human Brain Tumour Using Partially
Labeled MRS Information. In Procs. of the Intelligent Data Engineering
and Automated Learning (IDEAL
2009) International Conference, Lecture Notes in Computer Science, LNCS 5788, 168-175
Arizmendi, A., Vellido, A., Romero, E. (2009) Frequency Selection for the Diagnostic Characterization of Human Brain Tumours. In Procs. of the CCIA 2009.
Romero, E., Vellido, A.,
Julià-Sapé, M, and Arús, C. (2009) Discriminating glioblastomas from
metastases in a SV 1H-MRS brain tumour database. In
Proceedings of the 26th
Annual Meeting of the European Society for Magnetic Resonance in
Medicine and Biology (ESMRMB 2009), Antalya, Turkey, p.18.
Cruz, R., and Vellido, A. (2009) Comparative evaluation of Semi-Supervised Geodesic GTM. In The 4th International Conference on Hybrid Artificial Intelligence Systems (HAIS 2009). LNAI 5573, pp.344-351.
Romero, E., Vellido, A., and Sopena, J.M. (2009) Feature selection with single-layer perceptrons for a multicentre 1H-MRS brain tumour database. In The 10th International Work-Conference on Artificial Neural Networks (IWANN 2009). LNCS 5517, pp.1013–1020.
Lisboa, P.J.G., Romero, E.,
Vellido,
A., Julià-Sapé,
M., and Arús, C. (2008) Classification, Dimensionality Reduction, and
Maximally Discriminatory Visualization of a Multicentre 1H-MRS
Database of Brain Tumors. In The Seventh International Conference on
Machine Learning and Applications (ICMLA'08), 613-618.
Cruz, R., Vellido, A. (2008) On the Improvement of the Mapping Trustworthiness and Continuity of a Manifold Learning Model. In Procs. of the 9th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2008). LNCS 5326, 266-273.
Vellido, A., Julià-Sapé,
M., Romero, E.,
and Arús, C. (2008) Exploring outlierness and its causes in a 1H-MRS
brain
tumour database. In Proceedings of e-TUMOUR Workshop ‘Towards Brain
Tumour Classification
by Molecular Profiling’, Valencia, Spain.
Vellido, A., Julià-Sapé, M., Romero, E.,
and Arús, C.
(2008) Nonlinear dimensionality
reduction for the exploration of outliers in a
multicentre 1H-MRS database of brain tumours. In
Proceedings of the 25th
Annual Meeting of the European Society for Magnetic Resonance in
Medicine and Biology (ESMRMB).
Cruz, R., Vellido, A.
(2008) Geodesic Generative
Topographic Mapping. In Proceedings of the 11th Ibero-American
Conference on Artificial Intelligence (IBERAMIA
2008). LNAI 5290, 113-122.
Cruz, R., Vellido, A.
Unfolding the Manifold in Generative Topographic Mapping. In Proceedings of the 3rd
International Workshop on Hybrid Artificial Intelligence Systems (HAIS 2008). LNAI 5271, 392-399 .
Nebot, A., Castro, F., Vellido, A., Julià-Sapé, M. and Arús, C. (2008) Rule-based assistance to brain tumour diagnosis using LR-FIR. In Procs. of the 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2008). LNAI 5178, Vol. II, 173-180.
Vellido, A., Julià-Sapé, M., Romero, E. and Arús, C. (2008) Exploratory characterization of outliers in a multi-centre 1H-MRS brain tumour dataset. In Procs. of the 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2008). LNAI 5178, Vol. II, 189-196.
Vellido, A., Velazco, J.S.
(2008) Assessment of the effect of
noise on an unsupervised feature selection
method for Generative Topographic Mapping. In 10th International
Conference on Enterprise Information Systems (ICEIS 2008).
Vellido, A., Velazco, J.S. (2008) The effect of noise and sample size on an unsupervised feature selection method for manifold learning. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 523-528.
Olier, I., Vellido, A. (2008) On the
benefits for model regularization of a Variational formulation of GTM. In
Procs. of the International Joint
Conference on Neural Networks (IJCNN
2008), 1569-1576.
Olier, I., Vellido, A. (2008) A Variational Formulation for GTM Through Time. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 517-522.
Vellido, A., Biganzoli, E.,
Lisboa, P.J.G. (2008) Machine learning in cancer research: implications for
personalised medicine. In Procs. of the 16th European Symposiun on
Artificial Neural Networks (ESANN
2008), 55-64.
Romero,
E., Julià-Sapé, M.,
Vellido, A. (2008) DSS-oriented exploration of a multi-centre magnetic
resonance spectroscopy brain tumour dataset through visualization. In Procs. of the 16th European
Symposiun on
Artificial Neural Networks (ESANN
2008), 95-100.
Cruz, R., Vellido, A. Two-Stage Clustering of a Human Brain Tumour Dataset Using Manifold Learning Models. In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing, BIOSIGNALS 2008, Funchal, Madeira, Portugal. INSTICC Press. pp.191-196.
Olier, I., Vellido, A. (2007) Variational GTM. In 8th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'07). Accepted.
Olier, I., Vellido, A. (2007) A Variational Bayesian Formulation for GTM: Theoretical Foundations. Technical Report LSI-07-33-R.Universitat Politècnica de Catalunya, UPC, Barcelona, Spain. (download)
Cruz, R., Vellido, A. (2007) On the Influence of Class Information in the Two-Stage Clustering of a Human Brain Tumour Dataset. In Procs. of the 6th Mexican Conference on Artificial Intelligence (MICAI 2007). LNAI 4827, 472-482. (pdf)
Cruz, R., Vellido, A. (2007) On the Initialization of Two-Stage Clustering with class-GTM. In 12th Conference of the Spanish Association for Artificial Intelligence (CAEPIA'07+TTIA). LNAI Vol.4788, 50-59. (pdf)
Cruz, R., Vellido, A. (2007) Evaluation of a Two-Stage Clustering Procedure Using Class Information in Generative Topographic Mapping. In I.Rojas Ruiz and H. Pomares Cintas (eds.) Actas del II Simposio de Inteligencia Computacional (IEEE SICO 2007), Thomson, pp.17-24.
García, D.L. , Vellido,
A. and Nebot, A. (2007) Finding relevant features for the churn
analysis-oriented segmentation of a telecommunications market. In I.Rojas Ruiz and H. Pomares Cintas
(eds.) Actas del II Simposio de Inteligencia Computacional (IEEE
SICO 2007), Thomson, pp.301-310.
Cruz, R., Vellido, A. (2007) Limits to the Use of Class Information in a GTM-based Two-Stage Clustering Procedure. In F.J.Ferrer-Troyano et al. (eds.), Actas del IV Taller Nacional de Minería de Datos y Aprendizaje (TAMIDA 2007), Thomson, pp.303-312
Vellido, A., Lisboa, P.J.G. (2007) Neural networks and other machine learning methods in cancer research. In Procs. of IWANN 2007.LNCS 4507, 964-971.
García, D.L. , Vellido, A. and Nebot, A., (2007) Identification of
churn routes in the Brazilian telecommunications market. In Procs. of the 15th
European Symposiun on Artificial Neural Networks, ESANN 2007,
585-590.
García,
D.L. , Vellido, A. and Nebot, A., (2007) Predictive Models in Churn
Data
Mining: A Review. Technical Report LSI-07-4-R, Universitat Politècnica
de Catalunya, UPC, Barcelona, Spain.
García, D.L, Vellido, A., and Nebot, A. (2007) Customer Continuity Management as a Foundation for Churn Data Mining. Technical Report LSI-07-2-R. Universitat Politècnica de Catalunya, UPC, Barcelona, Spain.
Cruz, R. and Vellido, A., (2007) Elements of Generative Manifold Learning for semi-supervised tasks. Technical Report LSI-07-1-R. Universitat Politècnica de Catalunya, UPC, Barcelona, Spain.
Cruz, R. and Vellido, A., (2006) Clustering of brain tumours through constrained manifold learning using class information. Learning'06 International Conference. 'Between Learning and Data Mining' special session, 3rd of October, Vilanova i la Geltrú, Spain.
Spate, J., Gibert, K., Sànchez-Marrè, M., Frank, E., Comas, J., Athanasiadis, I., and Vellido, A. (2006) Data Mining as a Tool for Analysing Environmental Systems. Learning'06 International Conference. 'Between Learning and Data Mining' special session, 3rd of October, Vilanova i la Geltrú, Spain.
Poveda, J. and Vellido, A. (2006) Neural Network Models for Language Acquisition: A Brief Survey. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 1346-1357.
Olier, I. and Vellido, A. (2006) Time Series Relevance Determination through a topology-constrained Hidden Markov Model. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 40-47.
Vellido, A. , Etchells, T.A. , García, D.L. and Nebot, À. (2006) Describing customer loyalty to Spanish petrol stations through rule extraction. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 970-977.
Vellido, A. (2006) Assessment of an Unsupervised Feature Selection Method for Generative Topographic Mapping. 16th International Conference on Artificial Neural Networks (ICANN 2006), Athens, Greece. LNCS Vol.4132, 361-370. (download)
Cruz, R. and Vellido, A. (2006) On the improvement of brain tumour data clustering using class information, In Proc. of the 3rd European Starting AI Researcher Symposium (STAIRS'06), Riva del Garda, Italy.
Olier, I. and Vellido, A. (2006) Capturing the Dynamics of Multivariate Time Series Through Visualization Using Generative Topographic Mapping Through Time, In proceedings of the 1st IEEE International Conference on Engineering of Intelligent Systems, ICEIS'2006, Islamabad, Pakistán, pp.492-497. (download)
Etchells,T.A., Nebot, A., Vellido, A., Lisboa, P.J.G., and Múgica, F.(2006) Learning what is important: feature selection and rule extraction in a virtual course. In Proceedings of the 14th European Symposium on Artificial Neural Networks, ESANN 2006, Bruges, Belgium, 401-406.
Etchells, T.A., Vellido, A., Martí, E., Lisboa, P.J.G., and Comas, J. (2006) On the prediction of the ecological status of human-altered streams and its rule-based interpretation. 3rd Biennial meeting of the International Environmental Modelling and Software Society, iEMSs'2006. Data Mining Workshop.
Vellido, A., Comas, J., Cruz, R., and Martí, E. (2006) Finding relevant features for the characterization of the ecological status of human altered streams using a constrained mixture model. 3rd Biennial meeting of the International Environmental Modelling and Software Society, iEMSs'2006. Data Mining Workshop.
Andrade, A., and Vellido, A. (2006) Determining feature relevance for the grouping of motor unit action potentials through generative topographic mapping, In Proc. of the 25th IASTED International ConferenceModelling, Identification, and Control (MIC'06), Feb.6-8, Lanzarote, Canary Islands, Spain, pp.507-512.(pdf)
Vellido, A., Castro, F., Nebot, A., and Múgica, F. (2006) Characterization of atypical virtual campus usage behavior through robust generative relevance analysis, In Proc. of the Fifth IASTED International Conference on Web-Based Education (WBE 2006), Jan.23-25, Puerto Vallarta, México, pp.183-188.
Nebot, A., Castro, F., Múgica, F., and Vellido, A. (2006) Identification of fuzzy models to predict students performance in an e-learning environment, In Proc. of the Fifth IASTED International Conference on Web-Based Education (WBE 2006), Jan.23-25, Puerto Vallarta, México, pp.74-79. [Shortlisted for The Fifth International Competition of Ph.D. Students in the WBE Area]
(2005) Capturing the dynamics of multivariate time series through visualization using Generative Topographic Mapping Through Time. Technical Report LSI-05-52-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Castro, F. , Vellido, A. , Nebot, A. and Minguillón, J. (2005) Detecting atypical student behaviour on an e-learning system, Accepted for oral presentation: VI Congreso Nacional de Informática Educativa; Simposio Nacional de Tecnologías de la Información y las Comunicaciones en la Educación, SINTICE’2005 (ADIE), Granada, Spain, September 2005.
Castro, F. , Vellido, A. , Nebot, A. and Minguillón, J. (2005) Finding relevant features to characterize student behavior on an e-learning system, In: International Conference on Frontiers in Education: Computer Science and Computer Engineering (FECS 2005), Las Vegas, Nevada, USA, June 2005.
, (2005) Comparative assessment of the robustness of missing data imputation through Generative Topographic Mapping, In Cabestany, J., Prieto, A., and Sandoval, F. (Eds.) Proc. of the IWANN 2005, Vilanova i la Geltru, Barcelona, Spain. LNCS Vol.3512, 771-778.
Vellido, A., Lisboa, P.J.G., and Vicente,D. (2005) Handling outliers and missing data in brain tumor clinical assessment usign t-GTM. In Proc. of the European Symposium on Artificial Neural Networks, ESANN 2005, Bruges, Belgium, 121-126.
Vellido, A. and Lisboa, P.J.G. (2005) Functional topographic mapping for robust handling of outliers in brain tumour data. In Proc. of the European Symposium on Artificial Neural Networks, ESANN 2005, Bruges, Belgium, 133-138.
Vellido, A. (2005) Preliminary theoretical results on a feature relevance determination method for Generative Topographic Mapping. Technical Report LSI-05-13-R, Universitat Politècnica de Catalunya, UPC, Barcelona, Spain
Vellido, A. (2004) Missing data imputation through Generative Topographic Mapping as a mixture of t-distributions: Theoretical developments. Technical Report LSI-04-50-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A. (2004) Generative Topographic Mapping as a constrained mixture of Student t-distributions: Theoretical developments. Technical Report LSI-04-44-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vicente, D., Vellido, A., Martí, E., Comas, J., and Rodriguez-Roda, I. (2004), “Exploration of the ecological status of Mediterranean rivers: Clustering, visualizing and reconstructing streams data using Generative Topographic Mapping”. In W.I.T. Transactions on Information and Communication Technologies, Vol.33, 121-130.
Vellido, A., Olier, I., Martí, E., Comas, J., and Rodríguez-Roda, I. (2004) STREAMES project: Exploration of the ecological status of Mediterranean rivers using Generative Topographic Mapping. Poster presentation at BESAI 2004 - 4th ECAI Workshop on Binding Environmental Sciences and Artificial Intelligence. August 2004, Valencia, Spain.
Vellido, A., El-Deredy, W., and Lisboa, P.J.G. (2004) Studying embedded human EEG dynamics using Generative Topographic Mapping . Technical Report LSI-04-8-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A., and El-Deredy, W. (2004) Exploring dopamine-mediated reward processing through the analysis of EEG-measured gamma-band brain oscillations. Technical Report LSI-04-7-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A., El-Deredy, W., Gruber, T., Zald, D.H., McGlone, F.P., and Müller, M.M. (2003) Reward predictability and oscillatory brain processes. In The Annual Computational Neuroscience Meeting, CNS'2003. Poster presentation. Alicante, Spain.
Vellido, A. (2002) Neural networks for B2C e-commerce analysis: some elements of best practice. In Proceedings of the 4th International Conference On Enterprise Information Systems, ICEIS'2002, Ciudad Real, Spain.
Vellido, A., Lisboa, P.J.G. & Meehan, K. (2000) Segmenting the e-commerce market using the Generative Topographic Mapping. In Proceedings of the MICAI-2000, 470-481. Acapulco, México.
Lisboa, P.J.G., Wong, H., Vellido, A., Kirby, S.P.J., Harris, P. and Swindell, R. (1998) Survival of Breast Cancer Patients Following Surgery: a Detailed Assessment of the Multi-Layer Perceptron and Cox’s Proportional Hazard Model. In Proceedings of the World Congress on Computational Intelligence, IJCNN'1998, 112-116. Anchorage, Alaska, USA.
Lisboa, P.J.G., Vellido, A., Aung, H., El-Deredy, W., Lee, Y.Y.B. and Kirby, S.P.J. (1998) Quantification of uncertainty in tissue characterisation with NMR Spectra. In Proceedings of the 6th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, Abstract 1851, Sidney, Australia.
Y.Y.B. Lee, A. Vellido, W. El-Deredy, S. Kirby, P. Lisboa (1998) Neural networks in practice-an example from magnetic resonance spectroscopy. In Proc. of the IEE Colloquium on Intelligent Methods in Healthcare and Medical Applications (Digest No. 1998/514)
Lisboa, P.J.G., El-Deredy, W., Vellido, A., Etchells, T. and Pountney, D.C. (1997) Automatic Variable Selection and Rule Extraction Using Neural Networks. In Proceedings of the 15th IMACS World Congress on Scientific Computation, Modelling and Applied Mathematics, 461-466, Berlin, Germany.
Lisboa, P.J.G, Branston, N.M., El-Deredy, W. and Vellido, A. (1997) Tissue Characterisation with NMR Spectroscopy; Current State and Future Prospects for the Application of Neural Networks Analysis. In Proceedings of the IEEE/INNS International Joint Conference on Neural Networks, IJCNN'1997, 1385-1390, Houston, USA, pp.1385-1390.
Lisboa, P.J.G., Vellido, A., El-Deredy, W. and Auer, D. (1997) Pattern Recognition Analysis of MRS:A Benchmark of Linear Statistical Methods and Neural Networks. In Proceedings of the 14th Annual Meeting of the European Society of Magnetic Resonance in Medicine and Biology, Abstract 224, Brussels, Belgium.
P. Lisboa,S. Kirby,A. Vellido,B. Lee (1997) Pattern recognition methods for MRS analysis and classification. In Proc. of the IEE Colloquium on Realising the Clinical Potential of Magnetic Resonance Spectroscopy: The Role of Pattern Recognition (Digest No: 1997/082)
Generic
References on Computational Intelligence methods
Ruiz,
H., Ortega-Martorell, S., Jarman, I.H., Vellido, A., Romero, E.,
Martín, J.D. and Lisboa, P.J.G. (2012) Towards
interpretable classifiers with blind signal separation, in IEEE
Proceedings of the International Joint Conference on Neural Networks (IJCNN 2012), Brisbane, Australia.
Tosi, A., Vellido, A. (2012)
Cartogram representation of the batch-SOM magnification factor. In ESANN 2012, accepted.
Vellido, A., Martín-Guerrero,
J.D., Lisboa, P.J.G. (2012) Making machine learning
models interpretable. In ESANN 2012, accepted.
Vellido, A., Martín, J.D., Rossi,
F., and Lisboa, P.J.G. (2011) Seeing is believing: The importance of visualization in
real-world machine learning applications, In Procs. of the 19th European Symposiun on
Artificial Neural Networks (ESANN
2011), pp.219-226.
Vellido, A. (2010) Should you
trust
what you see? Inroads into data visualization using generative
topographic mapping. (2010) 3rd International Conference of
the ERCIM WG on Computing & Statistics (ERCIM 2010), London, U.K.
Olier, I., Vellido, A.,
Giraldo, J. (2010) Kernel Generative Topographic Mapping. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), pp.481-486.
Cruz, R., Vellido, A.
Semi-Supervised Geodesic
Generative Topographic Mapping. (2010) Pattern
Recognition Letters, 31(3),
202-209.
Olier, I., Vellido, A.
Clustering and Visualization of Multivariate Time Series (2009) In
Soria-Olivas, E. et al.
(eds.) The Handbook of Research on
Machine Learning Applications and Trends: Algorithms, Methods, and
Techniques, Vol.I, ch.8, pp.176-194. Information Science
Reference, New York.
Cruz,
R., and Vellido, A. (2009) Comparative evaluation of Semi-Supervised
Geodesic GTM. In The 4th International Conference on Hybrid
Artificial Intelligence Systems (HAIS
2009). LNAI 5573, pp.344-351.
Schleif, F.-M., Biehl, M.,
and Vellido, A. (2009) Advances in machine learning and computational
intelligence. Neurocomputing, 72(7-9), 1377-1378.
Olier, I., Vellido, A. (2008) Variational Bayesian Generative Topographic Mapping. Journal of Mathematical Modelling and Algorithms, 7(4), 371-387.
Olier, I., Vellido, A.
(2008) Advances in Clustering and Visualization of Time Series using
GTM
Through Time. Neural Networks,
21(7), 904-913.
preprint.
Cruz, R., Vellido, A. (2008) On the Improvement of the Mapping Trustworthiness and Continuity of a Manifold Learning Model. In Procs. of the 9th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2008). LNCS 5326, 266-273.
Cruz, R., Vellido, A.
(2008) Geodesic Generative
Topographic Mapping. In Proceedings of the 11th Ibero-American
Conference on Artificial Intelligence (IBERAMIA
2008). LNAI 5290, 113-122.
Cruz, R., Vellido, A. (2008) Unfolding the Manifold in Generative Topographic Mapping. In Proceedings of the 3rd International Workshop on Hybrid Artificial Intelligence Systems (HAIS 2008). LNAI 5271, 392-399 .
Vellido, A., Velazco,
J.S. (2008) Assessment of the effect of noise on an unsupervised
feature
selection method for Generative Topographic Mapping. In 10th
International Conference on Enterprise Information Systems (ICEIS 2008). Accepted.
Vellido, A., Velazco, J.S. (2008) The effect of noise and sample size on an unsupervised feature selection method for manifold learning. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 523-528.
Olier, I., Vellido, A. (2008)
On the
benefits for model regularization of a Variational formulation of GTM. In
Procs. of the International Joint
Conference on Neural Networks (IJCNN
2008), 1569-1576.
Olier, I., Vellido, A. (2008) A Variational Formulation for GTM Through Time. In Procs. of the International Joint Conference on Neural Networks (IJCNN 2008), 517-522.
Cruz, R., Vellido, A.
(2008)
Two-Stage Clustering of a Human Brain Tumour Dataset Using Manifold
Learning Models. In International Conference on Bio-inspired Systems
and Signal Processing, BIOSIGNALS
2008,
Funchal, Madeira, Portugal, 191-196.
Olier, I., Vellido, A. Variational GTM. (2007) In 8th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'07). Accepted.
Olier,
I., Vellido, A. (2007) A
Variational Bayesian Formulation for GTM: Theoretical Foundations.
Technical Report LSI-07-33-R.Universitat Politècnica de Catalunya, UPC,
Barcelona, Spain. (download)
Cruz, R., Vellido, A. (2007) On the Initialization of Two-Stage Clustering with class-GTM. In 12th Conference of the Spanish Association for Artificial Intelligence (CAEPIA'07+TTIA). LNAI Vol.4788, 50-59. (pdf)
Cruz, R., Vellido, A. (2007) Evaluation of a Two-Stage Clustering Procedure Using Class Information in Generative Topographic Mapping. In I.Rojas Ruiz and H. Pomares Cintas (eds.) Actas del II Simposio de Inteligencia Computacional (IEEE SICO 2007), Thomson, pp.17-24.
Cruz, R., Vellido, A. (2007) Limits
to the Use of Class Information in a GTM-based Two-Stage Clustering
Procedure. In F.J.Ferrer-Troyano et al. (eds.), Actas del IV Taller Nacional de
Minería de Datos y Aprendizaje (TAMIDA
2007), Thomson, pp.303-312
Cruz,
R. and Vellido, A., (2007) Elements of Generative Manifold Learning for
semi-supervised tasks. Technical Report LSI-07-1-R. Universitat
Politècnica de Catalunya, UPC, Barcelona, Spain.
Vellido, A. (2006) Missing data imputation through GTM as a mixture of t-distributions. Neural Networks, 19(10), 1624-1635. (download)
Olier, I. and Vellido, A. (2006) Time Series Relevance Determination through a topology-constrained Hidden Markov Model. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 40-47.
Vellido, A. (2006) Assessment of an Unsupervised Feature Selection Method for Generative Topographic Mapping. 16th International Conference on Artificial Neural Networks (ICANN 2006), Athens, Greece. LNCS Vol.4132, 361-370. (download)
Olier, I. and Vellido, A. (2006) Capturing the Dynamics of Multivariate Time Series Through Visualization Using Generative Topographic Mapping Through Time, In proceedings of the 1st IEEE International Conference on Engineering of Intelligent Systems, ICEIS'2006, Islamabad, Pakistán, pp.492-497. (download)
(2005) Capturing the dynamics of multivariate time series through visualization using Generative Topographic Mapping Through Time. Technical Report LSI-05-52-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
(2005) Comparative assessment of the robustness of missing data imputation through Generative Topographic Mapping, In Cabestany, J., Prieto, A., and Sandoval, F. (Eds.) Proc. of the IWANN 2005, Vilanova i la Geltru, Barcelona, Spain. LNCS Vol.3512, 787-794.
Vellido, A. (2005) Preliminary theoretical results on a feature relevance determination method for Generative Topographic Mapping. Technical Report LSI-05-13-R, Universitat Politècnica de Catalunya, UPC, Barcelona, Spain
Olier, I., and Vellido, A. (2004) Assessing the robustness of missing data imputation through Generative Topographic Mapping. ACIA Newsletter, 31, 14-20.
Vellido, A. (2004) Missing data imputation through Generative Topographic Mapping as a mixture of t-distributions: Theoretical developments. Technical Report LSI-04-50-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A. (2004) Generative Topographic Mapping as a constrained mixture of Student t-distributions: Theoretical developments. Technical Report LSI-04-44-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A., El-Deredy, W., and Lisboa, P.J.G. (2003) Selective Smoothing of the Generative Topographic Mapping. IEEE Transactions on Neural Networks, 14(4), 847-852
Lisboa. P.J.G., Vellido, A. and Wong, H. (2000) Bias reduction in skewed binary classification with Bayesian neural networks. Neural Networks, 13, 407-410.
Lisboa, P.J.G., El-Deredy, W., Vellido, A., Etchells, T. and Pountney, D.C. (1997) Automatic Variable Selection and Rule Extraction Using Neural Networks. In Proceedings of the 15th IMACS World Congress on Scientific Computation, Modelling and Applied Mathematics, 461-466, Berlin, Germany.
Medical & Bio- Applications
Ortega-Martorell, S., Lisboa, P.J.G., Vellido, A.,Julià-Sapé, M., Arús, C. (2012) Non-negative Matrix
Factorisation methods for the spectral decomposition of MRS data from
human brain tumours. BMC Bioinformatics,
13:38. (draft)
Vellido, A., Romero, E., Julià-Sapé, M., Majós, C., Moreno-Torres,
À., and Arús, C. Robust discrimination of glioblastomas from metastatic brain
tumors on the basis of single-voxel proton MRS. NMR in
Biomedicine.
Accepted for publication. doi: 10.1002/nbm.1797
Ribas, V.J., Vellido, A.,
Ruiz-Rodríguez, J.C., Rello, J. (2012) Severe sepsis mortality
prediction with
logistic regression over latent factors. Expert
Systems with Applications, 39(2), 1937-1943.
Arizmendi,
C., Vellido, A., Romero, E. (2012) Classification of human brain tumours from
MRS data using discrete wavelet transform and Bayesian neural networks.
Expert Systems
with Applications, 39(5), 5223-5232.
Ortega-Martorell, S. Lisboa, P.J.G., Vellido, A., Simões, R.V., Pumarola, M., Julià-Sapé, M., Arús, C. (2012) Delimitation of the solid tumour area in glioblastomas using Non-Negative Matrix Factorization, In ISBI 2012, accepted
Vellido, A., Romero, E., Julià-Sapé, M., Majós, C., Moreno-Torres,
À., and Arús, C. (2012) Robust discrimination of glioblastomas from
metastatic brain tumors on the basis of single-voxel proton MRS. NMR in
Biomedicine. Accepted for publication.
Ortega-Martorell, S., Lisboa, P.J.G., Vellido, A., Simões, R.V.,
Julià-Sapé, M., and Arús, C. (2011) Brain tumor pathological area delimitation
through Non-negative Matrix Factorization, BioDM' Workshop, The IEEE 11th
International Conference on Data Mining Workshops (ICDMW'11) pp.1058-1063
Cruz-Barbosa, R.,
Bautista-Villavicencio, D., Vellido, A. (2011) On the computation of the
Geodesic Distance with an application to dimensionality reduction in a
neuro-oncology problem. In Procs. of The 16th Iberoamerican
Congress on
Pattern Recognition (CIARP 2011), LNCS 7042, pp.483-490.
Ribas, V., Ruiz-Rodríguez,
J.D., Wojdel, A., Caballero-López, J., Ruiz-Sanmartín A., Rello, J. and
Vellido, A. (2011) Severe sepsis mortality prediction with Relevance
Vector Machines. In Procs. of the 33rd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), pp.100-103.
Arizmendi, C., Sierra, D.A., Vellido, A., Romero, E. (2011) Brain Tumour Classification Using Gaussian Decomposition and Neural Networks. In Procs. of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), pp.5645-5648.
Ortega-Martorell,
S., Vellido, A., Lisboa, P.J.G., Julià-Sapé, M., and Arús, C. (2011) Spectral
decomposition methods for the analysis of MRS information from human
brain tumours, In Procs. of the 2011 International Joint Conference on
Neural Networks (IJCNN 2011),
pp.3285-3292.
Cárdenas, M.I., Vellido, A.,
Olier, I., Rovira, X., Giraldo, J. (2011) Visualization of the phylogenetic
structure of G Protein-Coupled Receptor sequences using kernel and tree
methods, Eigth International Meeting on Computational Intelligence
Methods in Bioinformatics and Biostatistics, (CIBB 2011)
Ribas, V.J., Caballero-López, J., Saez de Tejada, A., Ruiz-Rodríguez,
J.C., Ruiz-Sanmartín,
A., Rello,
J., Vellido, A. (2011) Bayesian networks for ICU outcome prediction in sepsis
patients treated with statin drugs, Eigth International Meeting
on Computational
Intelligence Methods in Bioinformatics and Biostatistics, (CIBB 2011).
Lisboa, P.J.G., Jarman, I.H., Etchells, T.A. , Chambers, S.J., Bacciu, D., Whittaker, J., Garibaldi, J. M., Ortega-Martorell, S., Vellido, A., and Ellis, I.H. (2011) Discovering hidden pathways in bioinformatics, Eigth International Meeting on Computational Intelligence Methods in Bioinformatics and Biostatistics, (CIBB 2011).
Arizmendi, C., Vellido, A.,
Romero, E., (2011) Binary
Classification of Brain Tumours Using a Discrete Wavelet Transform and
Energy Criteria, In Procs. of the 2nd IEEE Latin American
Symposium on Circuits and Systems (LASCAS
2011), pp.1-4.
Vellido, A., Cárdenas,
M.I., Olier, I., Rovira, X., and Giraldo, J. (2011) A probabilistic
approach to the visual exploration of G Protein-Coupled Receptor
sequences, In Procs. of the 19th European Symposiun on
Artificial Neural Networks (ESANN
2011), pp.233-238.
Cruz-Barbosa, R., Bautista-Villavicencio, D., and Vellido, A. (2011) Comparative diagnostic accuracy of linear and nonlinear feature extraction methods in a neuro-oncology problem. In Procs. of the 3rd Mexican Conference on Pattern Recognition (MCPR 2011) LNCS, Vol.6718, 2011, pp.34-41.
Ribas,
V., Caballero-López, J., Ruiz-Rodríguez, J.C.,
Ruiz Sanmartín, A., Rello, J., and Vellido, A.
(2011) On the use of decision trees for ICU outcome prediction in
sepsis
patients treated with statins. In Procs. of the IEEE Symposium Series
on Computational Intelligence / IEEE Symposium on Computational
Intelligence and Data Mining (IEEE
SSCI CIDM 2011), 37-43.
Cruz, R., Vellido,
A. (2011) Semi-supervised
analysis of human brain tumours from partially labeled MRS information,
using manifold learning models. International
Journal
of Neural Systems. 21(1): 17-29.
Arizmendi, C.,
Hernández-Tamames, J., Romero, E., Vellido, A., del Pozo, F., (2010)
Diagnosis
of Brain Tumours from Magnetic Resonance Spectroscopy using Wavelets
and Neural Networks. In Procs. of the 32nd Annual International
Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010) Buenos Aires, Argentina,
pp.6074-6077.
Colas, F., Kok, J.N., and
Vellido, A. (2010) Finding Discriminative Subtypes of Aggressive Brain
Tumours using Magnetic Resonance Spectroscopy. In Procs. of the 32nd
Annual International Conference of the
IEEE Engineering in Medicine and Biology Society (EMBC 2010) Buenos Aires, Argentina
Lisboa, P.J.G. Vellido,
A. Tagliaferri, R. Napolitano, F. Ceccarelli,
M. Martin-Guerrero, J.D. Biganzoli, E. (2010) Data Mining in Cancer
Research, IEEE
Computational Intelligence Magazine,
5(1), 14-18
Ortega-Martorell, S., Olier, I., Vellido, A., Julià-Sapé, M., Arús, C. (2010) Spectral Prototype Extraction for the discrimination of glioblastomas from metastases in a SV 1H-MRS brain tumour database. ISMRM-ESMRMB Joint Annual Meeting.
Lisboa, P.J.G., Vellido, A.,
Martín, J.D. (2010) Computational Intelligence in biomedicine: Some
contributions. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 429-438.
Ortega-Martorell,
S., Olier, I., Vellido, A., Julià-Sapé, M., Arús, C. (2010) Spectral Prototype
Extraction for dimensionality reduction in brain tumour diagnosis. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 445-450.
González-Navarro,
F.F., Belanche-Muñoz, Ll.A., Romero, E., Vellido, A., Julià-Sapé, M.,
Arús, C. (2010) Feature and model selection with discriminatory
visualization
for diagnostic classification of brain tumours. Neurocomputing, 73(4-6), 622-632.
Romero, E., Vellido, A.,
Julià-Sapé, M, and Arús, C. (2009) Discriminating glioblastomas from
metastases in a SV 1H-MRS brain tumour database. In
Proceedings of the 26th
Annual Meeting of the European Society for Magnetic Resonance in
Medicine and Biology (ESMRMB 2009), Antalya, Turkey, p.18.
Vellido,
A., Romero, E., González-Navarro, F.F., Belanche-Muñoz, Ll.,
Julià-Sapé, M., Arús, C. (2009) Outlier exploration and diagnostic
classification of a multi-centre 1H-MRS brain tumour
database. Neurocomputing, 72(13-15), 3085-3097.
Cruz, R., and Vellido, A.,
Semi-supervised
Outcome Prediction for a Type of Human Brain Tumour Using Partially
Labeled MRS Information. In Procs. of the Intelligent Data Engineering
and Automated Learning (IDEAL
2009) International Conference, Lecture Notes in Computer Science, LNCS 5788, 168-175
Arizmendi, A., Vellido, A., Romero, E. (2009) Frequency Selection for the Diagnostic Characterization of Human Brain Tumours. In Procs. of the CCIA 2009.
Romero, E., Vellido, A., and Sopena, J.M. (2009) Feature selection with single-layer perceptrons for a multicentre 1H-MRS brain tumour database. In The 10th International Work-Conference on Artificial Neural Networks (IWANN 2009). LNCS 5517, pp.1013–1020.
Vellido, A., and Lisboa, P.J.G. (eds.) Investigating Human Cancer with Computational Intelligence Techniques. In KES Recent Research Results series. Future Technology Press. 2009. ISBN: 978-0-9561516-0-5
Vellido, A. and Lisboa,
P.J.G. (2009) Preface to Investigating
Human
Cancer with Computational Intelligence Techniques. In KES Recent
Research Results series. Future
Technology Press, vii-viii.
Nebot, A., Castro, F.,
Vellido, A., Julià-Sapé, M., and Arús, C. (2009) Rule-based assistance
to
brain tumour diagnosis using LR-FIR. In Investigating
Human
Cancer with Computational Intelligence Techniques. KES Recent
Research Results series. Future
Technology Press, 83-92.
Vellido, A., Julià-Sapé, M., Romero, E., and Arús, C. (2009) Exploratory characterization of a multi-centre 1H-MRS brain tumour database. In Investigating Human Cancer with Computational Intelligence Techniques. KES Recent Research Results series. Future Technology Press, 55-67.
Lisboa, P.J.G., Romero, E.,
Vellido,
A., Julià-Sapé,
M., and Arús, C. (2008) Classification, Dimensionality Reduction, and
Maximally Discriminatory Visualization of a Multicentre 1H-MRS
Database of Brain Tumors. In The Seventh International Conference on
Machine Learning and Applications (ICMLA'08), 613-618.
Vellido, A., Julià-Sapé,
M., Romero, E.,
and Arús, C. (2008) Exploring outlierness and its causes in a 1H-MRS brain
tumour database. In Proceedings of e-TUMOUR Workshop ‘Towards Brain
Tumour Classification
by Molecular Profiling’, Valencia, Spain.
Vellido, A., Julià-Sapé, M., Romero, E.,
and Arús, C.
(2008) Nonlinear
dimensionality reduction for the exploration of outliers in a
multicentre 1H-MRS database of
brain tumours. In Proceedings of the 25th
Annual Meeting of the European Society for Magnetic Resonance in
Medicine and Biology (ESMRMB).
Nebot, A., Castro, F.,
Vellido, A., Julià-Sapé, M. and Arús, C. (2008) Rule-based assistance
to brain
tumour diagnosis using LR-FIR. In Procs. of the 12th
International
Conference on Knowledge-Based and Intelligent Information &
Engineering Systems (KES2008). LNAI 5178, Vol. II, 173-180.
Vellido, A., Julià-Sapé, M., Romero, E. and Arús, C. (2008) Exploratory characterization of outliers in a multi-centre 1H-MRS brain tumour dataset. In Procs. of the 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2008). LNAI 5178, Vol. II, 189-196.
Vellido, A., Biganzoli, E.,
Lisboa, P.J.G. (2008) Machine learning in cancer research: implications for
personalised medicine. In Procs. of the 16th European Symposiun on
Artificial Neural Networks (ESANN
2008), 55-64.
Romero,
E., Julià-Sapé, M.,
Vellido, A. (2008) DSS-oriented exploration of a multi-centre magnetic
resonance spectroscopy brain tumour dataset through visualization. In Procs. of the 16th European
Symposiun on
Artificial Neural Networks (ESANN
2008), 95-100.
Cruz, R., Vellido, A.
Two-Stage Clustering of a Human Brain Tumour Dataset Using Manifold
Learning Models. In Proceedings of the International Conference on
Bio-inspired Systems
and Signal Processing, BIOSIGNALS 2008,
Funchal, Madeira, Portugal. INSTICC Press. pp.191-196.
Vellido, A., Lisboa,
P.J.G. (2008) Machine Learning in Human Cancer Research. In Svensson,
H.A.
(Ed.): Neurocomputing
Research
Developments. Nova Publishers, 163-180.
Cruz, R., Vellido, A. (2007) On the Influence of Class Information in the Two-Stage Clustering of a Human Brain Tumour Dataset. In Procs. of the 6th Mexican Conference on Artificial Intelligence (MICAI 2007). LNAI 4827, 472-482. (pdf)
Vellido, A., Andrade, A.O. (2007) Determination of feature relevance for the grouping of motor unit action potentials through a generative mixture model. Biomedical Signal Processing and Control, 2(2), 111-121.
Vellido,
A., Lisboa, P.J.G. (2007) Neural networks and other machine learning
methods
in cancer research. In Procs. of IWANN
2007.LNCS 4507, 964-971.
Cruz, R. and Vellido, A. (2006) Clustering of brain tumours through constrained manifold learning using class information. Learning'06 International Conference. 'Between Learning and Data Mining' special session, 3rd of October, Vilanova i la Geltrú, Spain.
Cruz, R. and Vellido, A. (2006) On the improvement of brain tumour data clustering using class information, In Proc. of the 3rd European Starting AI Researcher Symposium (STAIRS'06), Riva del Garda, Italy.
Vellido, A., Lisboa, P.J.G., and Vicente, D. (2006) Robust analysis of MRS brain tumour data using t-GTM. Neurocomputing, 69(7-9), 754-768. (pdf)
Andrade, A., and Vellido, A. (2006) Determining feature relevance for the grouping of motor unit action potentials through generative topographic mapping, In Proc. of the 25th IASTED International ConferenceModelling, Identification, and Control (MIC'06), Feb.6-8, Lanzarote, Canary Islands, Spain, pp.507-512. (pdf)
Vellido, A. and Lisboa, P.J.G. (2006) Handling outliers in brain tumour MRS data analysis through robust topographic mapping, Computers in Biology and Medicine, 36(10), 1049-1063. (download)
Vellido, A., Lisboa, P.J.G., and Vicente,D. (2005) Handling outliers and missing data in brain tumor clinical assessment usign t-GTM. In Proc. of the European Symposium on Artificial Neural Networks, ESANN 2005, Bruges, Belgium, 121-126.
Vellido, A. and Lisboa, P.J.G. (2005) Functional topographic mapping for robust handling of outliers in brain tumour data. In Proc. of the European Symposium on Artificial Neural Networks, ESANN 2005, Bruges, Belgium, 133-138.
Lisboa, P.J.G., Vellido, A. and Wong, H. (2000) Outstanding Issues for Clinical Decision Support with Neural Networks. In Artificial Neural Networks in Medicine and Biology. Springer, London, 63-71
Lisboa, P.J.G., Kirby, S.J.P., Vellido, A., Lee, Y.Y.B. and El-Deredy, W. (1998) Assessment of Statistical and Neural Network Methods in NMR Spectral Classification and Metabolite Selection. Nuclear Magnetic Resonance in Biomedicine, 11, 225-234.
Lisboa, P.J.G., Wong, H., Vellido, A., Kirby, S.P.J., Harris, P. and Swindell, R. (1998) Survival of Breast Cancer Patients Following Surgery: a Detailed Assessment of the Multi-Layer Perceptron and Cox’s Proportional Hazard Model. In Proceedings of the World Congress on Computational Intelligence, IJCNN'1998, 112-116. Anchorage, Alaska, USA.
Lisboa, P.J.G., Vellido, A., Aung, H., El-Deredy, W., Lee, Y.Y.B. and Kirby, S.P.J. (1998) Quantification of uncertainty in tissue characterisation with NMR Spectra. In Proceedings of the 6th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, Abstract 1851, Sidney, Australia.
Y. Lee,A. Vellido,W. El-Deredy,S. Kirby,P. Lisboa (1998) Neural networks in practice-an example from magnetic resonance spectroscopy. In Proc. of the IEE Colloquium on Intelligent Methods in Healthcare and Medical Applications (Digest No. 1998/514)
Lisboa, P.J.G, Branston, N.M., El-Deredy, W. and Vellido, A. (1997) Tissue Characterisation with NMR Spectroscopy; Current State and Future Prospects for the Application of Neural Networks Analysis. In Proceedings of the IEEE/INNS International Joint Conference on Neural Networks, IJCNN'1997, 1385-1390, Houston, USA.
Lisboa, P.J.G., Vellido, A., El-Deredy, W. and Auer, D. (1997) Pattern Recognition Analysis of MRS:A Benchmark of Linear Statistical Methods and Neural Networks. In Proceedings of the 14th Annual Meeting of the European Society of Magnetic Resonance in Medicine and Biology, Abstract 224, Brussels, Belgium.
P. Lisboa,S. Kirby,A. Vellido,B. Lee (1997) Pattern recognition methods for MRS analysis and classification. In Proc. of the IEE Colloquium on Realising the Clinical Potential of Magnetic Resonance Spectroscopy: The Role of Pattern Recognition (Digest No: 1997/082)
Business Applications
García, D.L. , Vellido,
A. and Nebot, A. (2007) Finding relevant features for the churn
analysis-oriented segmentation of a telecommunications market. In I.Rojas Ruiz and H. Pomares Cintas
(eds.) Actas del II Simposio de Inteligencia Computacional (IEEE
SICO 2007), Thomson, pp.301-310.
García, D.L. , Vellido, A. and Nebot, A., (2007) Identification of churn routes in the Brazilian telecommunications market. In Procs. of the 15th European Symposiun on Artificial Neural Networks, ESANN 2007, 585-590.
García,
D.L. , Vellido, A. and Nebot, A., (2007) Predictive Models in Churn
Data
Mining: A Review. Technical Report LSI-07-4-R, Universitat Politècnica
de Catalunya, UPC, Barcelona, Spain.
García, D.L, Vellido, A., and Nebot, A. (2007) Customer Continuity Management as a Foundation for Churn Data Mining. Technical Report LSI-07-2-R. Universitat Politècnica de Catalunya, UPC, Barcelona, Spain.
Vellido, A. , Etchells, T.A. , García, D.L. and Nebot, À. (2006) Describing customer loyalty to Spanish petrol stations through rule extraction. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 970-977.
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2002) Characterizing and Segmenting the On-Line Customer Market Using Neural Networks. In E-Commerce and Intelligent Methods. Heidelberg: Springer-Verlag, 101-119
Vellido, A. (2002) Neural networks for B2C e-commerce analysis: some elements of best practice. In Proceedings of the 4th International Conference On Enterprise Information Systems (ICEIS'2002) Ciudad Real, Spain.
Vellido, A and Lisboa, P.J.G (2001) An electronic commerce application of the Bayesian Framework for MLPs: the Effect of Marginalization and ARD. Neural Computing & Applications. 10(1)
Lisboa, P.J.G., Vellido, A. and Edisbury, B. (Editors, 2000) Business Applications of Neural Networks. Singapore: World Scientific.
Lisboa, P.J.G., Vellido, A. (2000) Preface: Business Applications of Neural Networks. In Business Applications of Neural Networks. Singapore: World Scientific.
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2000) Characterizing and segmenting the business-to-consumer e-commerce market using neural networks. In Business Applications of Neural Networks. Singapore: World Scientific.
Vellido, A., Lisboa, P.J.G. and Meehan, K. (2000) The Generative Topographic Mapping as a principled model for data visualization and market segmentation: an electronic commerce case study. International Journal of Computers, Systems, and Signals. 1(2), 119-138.
Vellido, A, Lisboa, P.J.G and Meehan, K. (2000) Quantitative characterization and prediction of on-line purchasing behaviour: a latent variable approach. International Journal of Electronic Commerce, 4(4), 83-104.
Vellido, A., Lisboa, P.J.G. & Meehan, K. (2000) Segmenting the e-commerce market using the Generative Topographic Mapping. In Proceedings of the MICAI-2000, 470-481. Acapulco, México.
Vellido, A., Lisboa, P.J.G. & Meehan, K. (2000) A systematic quantitative methodology for characterizing the business-to-consumer e-commerce market. ACM SIGBIO Newsletter, Vol.20(1), p.24.
Vellido,
A., Lisboa, P.J.G and Vaughan, J. (1999)
Neural
networks in business: a survey of applications (1992-1998) Expert
Systems with Applications. 17, 51-70.
Vellido, A., Lisboa, P.J.G and Meehan, K. (1999) Segmentation of the on-line shopping market using neural networks. Expert Systems with Applications. 17, 303-314.
Environmental modelling applications
Vellido, A., Martí, E., Comas, J., Rodríguez-Roda, I., and Sabater, F. (2007) Exploring the ecological status of human altered streams through Generative Topographic Mapping. Environmental Modelling & Software, 22(7), 1053-1065. (download).
Spate, J., Gibert, K., Sànchez-Marrè, M., Frank, E., Comas, J., Athanasiadis, I., and Vellido, A. (2006) Data Mining as a Tool for Analysing Environmental Systems. Learning'06 International Conference. 'Between Learning and Data Mining' special session, 3rd of October, Vilanova i la Geltrú, Spain.
Etchells, T.A., Vellido, A., Martí, E., Lisboa, P.J.G., and Comas, J. (2006) On the prediction of the ecological status of human-altered streams and its rule-based interpretation. 3rd Biennial meeting of the International Environmental Modelling and Software Society, iEMSs'2006. Data Mining Workshop.
Vellido, A., Comas, J., Cruz, R., and Martí, E. (2006) Finding relevant features for the characterization of the ecological status of human altered streams using a constrained mixture model. 3rd Biennial meeting of the International Environmental Modelling and Software Society, iEMSs'2006. Data Mining Workshop.
Vicente, D., Vellido, A., Martí, E., Comas, J., and Rodriguez-Roda, I. (2004), “Exploration of the ecological status of Mediterranean rivers: Clustering, visualizing and reconstructing streams data using Generative Topographic Mapping”. In W.I.T. Transactions on Information and Communication Technologies, Vol.33, 121-130.
Vellido, A., Olier, I., Martí, E., Comas, J., and Rodríguez-Roda, I. (2004) STREAMES project: Exploration of the ecological status of Mediterranean rivers using Generative Topographic Mapping. Poster presentation at BESAI 2004 - 4th ECAI Workshop on Binding Environmental Sciences and Artificial Intelligence. August 2004, Valencia, Spain.
E-learning applications
Vellido, A., Castro, F.,
Nebot, A. (2010) Clustering Educational Data. In Romero, C., Ventura,
S.,
Pechenizkiy, M., Baker, R.S.J.d. (eds.) Handbook of Educational data Mining, CRC
Press, Taylor & Francis Group, pp.75-92.
Castro, F., Vellido,
A., Nebot, À., and Minguillón, J. (2008) Detección de Estudiantes
con
Comportamiento Atípico en Entornos de Aprendizaje e-Learning. In
Llamas-Nistal, M., Vaz de Carvalho, C., and Rueda Artunduaga, C. (eds.) TICAI2006: TICs para el
Aprendizaje de la Ingeniería, pp.23-30. IEEE, Sociedad de
Educación: Capítulos Español, Portugués y Colombiano.
Castro, F., Vellido, A., Nebot, A., Mugica, F. (2007) Applying Data Mining Techniques to e-Learning Problems. In: Jain, L.C., Tedman, R. and Tedman, D. (eds.) Evolution of Teaching and Learning Paradigms in Intelligent Environment. Studies in Computational Intelligence, Vol.62, Springer-Verlag, 183-221.
Vellido, A., Castro, F., Etchells, T.A., Nebot, A., and Mugica, F. (2007) Data Mining of Virtual Campus Data. In: Jain, L.C., Tedman, R. and Tedman, D. (eds.) Evolution of Teaching and Learning Paradigms in Intelligent Environment. Studies in Computational Intelligence, Vol.62, Springer-Verlag, 223-254.
Etchells,T.A., Nebot, A., Vellido, A., Lisboa, P.J.G., and Múgica, F. (2006) Learning what is important: feature selection and rule extraction in a virtual course. In Proceedings of the 14th European Symposium on Artificial Neural Networks, ESANN 2006, Bruges, Belgium, 401-406.
Vellido, A., Castro, F., Nebot, A., and Múgica, F., (2006) Characterization of atypical virtual campus usage behavior through robust generative relevance analysis, In Proc. of the Fifth IASTED International Conference on Web-Based Education (WBE 2006), Jan.23-25, Puerto Vallarta, México, pp.183-188.
Nebot, A., Castro, F., Múgica, F., and Vellido, A., (2006) Identification of fuzzy models to predict students performance in an e-learning environment, In Proc. of the Fifth IASTED International Conference on Web-Based Education (WBE 2006), Jan.23-25, Puerto Vallarta, México, pp.74-79. [Shortlisted for The Fifth International Competition of Ph.D. Students in the WBE Area]
Castro, F. , Vellido, A. , Nebot, A. and Minguillón, J. (2005) Detecting atypical student behaviour on an e-learning system, Accepted for oral presentation: VI Congreso Nacional de Informática Educativa; Simposio Nacional de Tecnologías de la Información y las Comunicaciones en la Educación, SINTICE’2005 (ADIE), Granada, Spain, September 2005.
Castro, F. , Vellido, A. , Nebot, A. and Minguillón, J. (2005) Finding relevant features to characterize student behavior on an e-learning system, In: International Conference on Frontiers in Education: Computer Science and Computer Engineering (FECS 2005), Las Vegas, Nevada, USA, June 2005.
Neuroscience applications
Ortega-Martorell, S., Olier, I., Vellido, A., Lisboa, P.J.G., El-Deredy, W. (2011) Comparing independent component analysis and non-negative matrix factorisation in the identification of event-related brain dynamics, 11th International Conference on Cognitive Neuroscience (ICON XI), Abstract A066, p.82.
Olier,
I., Amengual, J. and Vellido, A. A variational Bayesian approach for
the robust estimation of cortical silent periods from EMG time series
of brain stroke patients. Neurocomputing,
74(9): 1301-1314.
Olier,
I., Amengual, J., Vellido, A. (2010) Segmentation of EMG time series using a
variational Bayesian approach for the robust estimation of cortical
silent periods. 18th European Symposiun on
Artificial Neural Networks (ESANN
2010), 439-444.
Vellido, A., El-Deredy, W., and Lisboa, P.J.G. (2004) Studying embedded human EEG dynamics using Generative Topographic Mapping . Technical Report LSI-04-8-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A., and El-Deredy, W. (2004) Exploring dopamine-mediated reward processing through the analysis of EEG-measured gamma-band brain oscillations. Technical Report LSI-04-7-R, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
Vellido, A., El-Deredy, W., Gruber, T., Zald, D.H., McGlone, F.P., and Müller, M.M. (2003) Reward predictability and oscillatory brain processes. In The Annual Computational Neuroscience Meeting, CNS'2003. Poster presentation. Alicante, Spain.
Miscellanea
Poveda, J. and Vellido, A. (2006) Neural Network Models for Language Acquisition: A Brief Survey. In Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006), Burgos, Spain. LNCS Vol.4224, 1346-1357.
Vicente, D. and Vellido, A. (2004) Review of Hierarchical Models for Data Clustering and Visualization. In R.Giráldez, J.C. Riquelme, J.S. Aguilar-Ruiz (Eds.) Tendencias de la Minería de Datos en España. Red Española de Minería de Datos.
Alquézar, R., Belanche, L., Nebot, A., Romero, E., and Vellido, A. (2004) Investigación actual del grupo SOCO: Metodologías híbridas de Soft Computing. In R.Giráldez, J.C. Riquelme, J.S. Aguilar-Ruiz (Eds.) Tendencias de la Minería de Datos en España. Red Española de Minería de Datos.
Last updated 23/03/12