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Vellido Alcacena, Alfredo

Total activity: 176
Research group
SOCO - Soft Computing
Department
Department of Computer Science
School
Barcelona School of Informatics (FIB)
E-mail
avellidocs.upc.edu
Contact details
UPC directory Open in new window
Orcid
0000-0002-9843-1911 Open in new window
Scopus Author ID
6602481203 Open in new window

Scientific and technological production

1 to 50 of 176 results
 
  • Visualization and Interpretability in Probabilistic Dimensionality Reduction Models  Open access

     Tosi, Alessandra
    Department of Computer Science, Universitat Politècnica de Catalunya
    Theses
  • Reducing the n-gram feature space of class C GPCRs to subtype-discriminating patterns  Open access

     König, Caroline; Alquezar Mancho, Renato; Vellido Alcacena, Alfredo; Giraldo Arjonilla, Jesús
    Journal of integrative bioinformatics
    Vol. 11, num. 3, p. Paper 254-
    DOI: 10.2390/biecoll-jib-2014-254
    Date of publication: 2014-10-23
    Journal article
    Access to the full text
  • Automated classification of brain tumours from short echo time in vivo MRS data using Gaussian decomposition and Bayesian neural networks

     Arizmendi Pereira, Carlos Julio; Sierra Bueno, Daniel Alfonso; Vellido Alcacena, Alfredo; Romero Merino, Enrique
    Expert systems with applications
    Vol. 41, num. 11, p. 5296-5307
    DOI: 10.1016/j.eswa.2014.02.031
    Date of publication: 2014-09-01
    Journal article
  • A MAP approach for convex non-negative matrix factorization in the diagnosis of brain tumors

     Vilamala Muñoz, Albert; Belanche Muñoz, Luis Antonio; Vellido Alcacena, Alfredo
    International Workshop on Pattern Recognition in Neuroimaging
    p. 6858550-1-6858550-4
    DOI: 10.1109/PRNI.2014.6858550
    Presentation's date: 2014-06
    Presentation of work at congresses
  • Visual interpretation of class C GPCR subtype overlapping from the nonlinear mapping of transformed primary sequences

     Cárdenas Dominguez, Martha Ivón; Vellido Alcacena, Alfredo; Giraldo Arjonilla, Jesús
    IEEE-EMBS International Conferences on Biomedical and Health Informatics
    p. 764-767
    DOI: 10.1109/BHI.2014.6864476
    Presentation's date: 2014-06-01
    Presentation of work at congresses
  • Sepsis mortality prediction with the Quotient Basis Kernel

     Ribas Ripoll, Vicent; Vellido Alcacena, Alfredo; Romero Merino, Enrique; Ruiz Rodriguez, Juan Carlos
    Artificial intelligence in medicine
    Vol. 61, num. 1, p. 45-52
    DOI: 10.1016/j.artmed.2014.03.004
    Date of publication: 2014-05-01
    Journal article
  • Continuous blood pressure assessment from a photoplethysmographic signal with Deep Belief Networks

     Ribas Ripoll, Vicent; Wojdel, Anna; Sáez de Tejada Cuenca, Anna; Ruiz Rodriguez, Juan Carlos; Ruiz Sanmartín, Adolf; Nadal, Miriam de; Romero Merino, Enrique; Vellido Alcacena, Alfredo
    Experimental Biology
    Presentation's date: 2014-04-28
    Presentation of work at congresses
  • Exploration of Customer Churn Routes Using Machine Learning Probabilistic Models  Open access

     García Gómez, David
    Department of Computer Science, Universitat Politècnica de Catalunya
    Theses
  • A novel semi-supervised methodology for extracting tumor type-specific MRS sources in human brain data

     Ortega Martorell, Sandra; Ruiz Ruiz, Hector Efrain; Vellido Alcacena, Alfredo; Olier, Ivan; Romero Merino, Enrique; Julia Sape, Margarida; Martin, Jose D.; Jarman, Ian H.; Arus, Carles; Lisboa, Paulo J G
    PLoS one
    Vol. 8, num. 12, p. e83773-1-e83773-14
    DOI: 10.1371/journal.pone.0083773
    Date of publication: 2013-12-23
    Journal article
  • Discriminant convex non-negative matrix factorization for the classification of human brain tumours

     Vilamala Muñoz, Albert; Lisboa, Paulo J G; Ortega Martorell, Sandra; Vellido Alcacena, Alfredo
    Pattern recognition letters
    Vol. 34, num. 14, p. 1734-1747
    DOI: 10.1016/j.patrec.2013.05.023
    Date of publication: 2013-10-15
    Journal article
  • Cartogram-based data visualization using the growing hierarchical SOM

     Martin Prat, Angela; Vellido Alcacena, Alfredo
    Congrés Internacional de l’Associació Catalana d'Intel·ligència Artificial
    p. 249-252
    DOI: 10.3233/978-1-61499-320-9-249
    Presentation's date: 2013-10
    Presentation of work at congresses
  • SVM-based classification of class C GPCRs from alignment-free physicochemical transformations of their sequences  Open access

     König, Caroline; Cruz Barbosa, Raúl; Alquezar Mancho, Renato; Vellido Alcacena, Alfredo
    International Conference on Image Analysis and Processing
    p. 336-343
    DOI: 10.1007/978-3-642-41190-8_36
    Presentation's date: 2013-09-09
    Presentation of work at congresses
    Access to the full text
  • Cartogram visualization for nonlinear manifold learning models

     Vellido Alcacena, Alfredo; Garcia Cortes, David; Nebot Castells, Maria Angela
    Data mining and knowledge discovery
    Vol. 27, num. 1, p. 22-54
    DOI: 10.1007/s10618-012-0294-6
    Date of publication: 2013-07-01
    Journal article
  • A Quotient Basis Kernel for the prediction of mortality in severe sepsis patients  Open access

     Ribas Ripoll, Vicent; Romero Merino, Enrique; Ruiz Rodriguez, Juan Carlos; Vellido Alcacena, Alfredo
    European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning
    p. 379-384
    Presentation's date: 2013-04-24
    Presentation of work at congresses
    Access to the full text
  • Robust cartogram visualization of outliers in manifold learning  Open access

     Tosi, Alessandra; Vellido Alcacena, Alfredo
    European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning
    p. 555-560
    Presentation's date: 2013-04-24
    Presentation of work at congresses
    Access to the full text
  • Advances in semi-supervised alignment-free classification of G protein-coupled receptors  Open access

     Vellido Alcacena, Alfredo; Cruz Barbosa, Raúl; Giraldo Arjonilla, Jesús
    International Work-Conference on Bioinformatics and Biomedical Engineering
    p. 759-766
    Presentation's date: 2013-03
    Presentation of work at congresses
    Access to the full text
  • Telecommunications customers churn monitoring using flow maps and cartogram visualization

     Garcia Cortes, David; Nebot Castells, Maria Angela; Vellido Alcacena, Alfredo
    International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications
    p. 451-460
    Presentation's date: 2013-02
    Presentation of work at congresses
  • On the Intelligent Management of Sepsis in the Intensive Care Unit  Open access

     Ribas Ripoll, Vicente Jorge
    Department of Computer Science, Universitat Politècnica de Catalunya
    Theses
  • Visualizing pay-per-view television customers churn using cartograms and flow maps

     García Gómez, David; Nebot Castells, Maria Angela; Vellido Alcacena, Alfredo
    European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning
    p. 567-572
    Presentation of work at congresses
  • Convex non-negative matrix factorization for brain tumor delimitation from MRSI data  Open access

     Ortega Martorell, Sandra; Lisboa, Paulo J.G.; Vellido Alcacena, Alfredo; Simoes, Rui V.; Pumarola, Martí; Julià Sapé, Margarida; Arús, Carles
    PLoS one
    Vol. 7, num. 10
    DOI: 10.1371/journal.pone.0047824
    Date of publication: 2012-10-23
    Journal article
    Access to the full text
  • Unsupervised tumour area delimitation in glioblastoma multiforme using non-negative matrix factorisation of MRSI grids

     Ortega Martorell, Sandra; Lisboa, Paulo J.G.; Vellido Alcacena, Alfredo; Simoes, Rui V.; Pumarola, Martí; Julià Sapé, Margarida; Arús, C.
    Annual Scientific Meeting of the European Society for Magnetic Resonance in Medicine and Biology
    p. 303-
    DOI: 10.1007/s10334-012-0323-x
    Presentation's date: 2012-10-06
    Presentation of work at congresses
  • Intelligent management of sepsis in the intensive care unit

     Ribas Ripoll, Vicent; Ruiz Rodriguez, Juan Carlos; Vellido Alcacena, Alfredo
    Date of publication: 2012-06
    Book chapter
    Image
  • Preprocessing MRS information for classification of human brain tumours

     Arizmendi Pereira, Carlos Julio; Vellido Alcacena, Alfredo; Romero Merino, Enrique
    Date of publication: 2012-06
    Book chapter
    Image
  • Kernel generative topographic mapping of protein sequences

     Cárdenas Dominguez, Martha Ivón; Vellido Alcacena, Alfredo; Olier Caparroso, Ivan Alberto; Rovira, Xavier; Giraldo Arjonilla, Jesús
    Date of publication: 2012-06
    Book chapter
    Image
  • Robust discrimination of glioblastomas from metastatic brain tumors on the basis of single-voxel 1H MRS

     Vellido Alcacena, Alfredo; Romero Merino, Enrique; Julià Sapé, Margarida; Majós, C.; Moreno Torres, À.; Pujol, Jesus; Arús, Carles
    NMR in biomedicine
    Vol. 25, num. 6, p. 819-828
    DOI: 10.1002/nbm.1797
    Date of publication: 2012-06
    Journal article
  • Classification of human brain tumours from MRS data using Discrete Wavelet Transform and Bayesian Neural Networks

     Arizmendi Pereira, Carlos Julio; Vellido Alcacena, Alfredo; Romero Merino, Enrique
    Expert systems with applications
    Vol. 39, num. 5, p. 5223-5232
    DOI: 10.1016/j.eswa.2011.11.017
    Date of publication: 2012-04
    Journal article
  • Cartogram representation of the batch-SOM magnification factor

     Tosi, Alessandra; Vellido Alcacena, Alfredo
    European Symposium on Artificial Neural Networks
    p. 203-208
    Presentation's date: 2012-04
    Presentation of work at congresses
  • Making machine learning models interpretable

     Vellido Alcacena, Alfredo; Martin Guerrero, Jose D.; Lisboa, Paulo J.G.
    European Symposium on Artificial Neural Networks
    p. 163-172
    Presentation's date: 2012-04
    Presentation of work at congresses
  • Non-negative matrix factorisation methods for the spectral decomposition of MRS data from human brain tumours

     Ortega Martorell, Sandra; Lisboa, Paulo J.G.; Vellido Alcacena, Alfredo; Julià Sapé, Margarida; Arús, Carles
    BMC bioinformatics
    Vol. 13, num. 38, p. 1-20
    DOI: 10.1186/1471-2105-13-38
    Date of publication: 2012-03-08
    Journal article
  • SIGNAL PROCESSING TECHNIQUES FOR BRAIN TUMOUR DIAGNOSIS FROM MAGNETIC RESONANCE SPECTROSCOPY DATA

     Arizmendi Pereira, Carlos Julio
    Department of Computer Science, Universitat Politècnica de Catalunya
    Theses
  • Complementing kernel-based visualization of protein sequences with their phylogenetic tree

     Cárdenas Dominguez, Martha Ivón; Vellido Alcacena, Alfredo; Olier, Iván; Rovira, Xavier; Giraldo Arjonilla, Jesús
    DOI: 10.1007/978-3-642-35686-5_8
    Date of publication: 2012
    Book chapter
    Image
  • On the use of graphical models to study ICU outcome prediction in septic patients treated with statins

     Ribas Ripoll, Vicent; Caballero López, Jesús; Sáez de Tejada Cuenca, Anna; Ruiz Rodriguez, Juan Carlos; Ruiz Sanmartin, Adolfo; Rello, Jordi; Vellido Alcacena, Alfredo
    DOI: 10.1007/978-3-642-35686-5_8
    Date of publication: 2012
    Book chapter
    Image
  • Discovering hidden pathways in bioinformatics

     Lisboa, Paulo J.G.; Jarman, Ian H.; Etchells, Terence A.; Chambers, Simon J.; Bacciu, Davide; Whittaker, Joe; Garibaldi, Jon M.; Ortega Martorell, Sandra; Vellido Alcacena, Alfredo; Ellis, Ian O.
    DOI: 10.1007/978-3-642-35686-5_8
    Date of publication: 2012
    Book chapter
    Image
  • Computational intelligence methods for bioinformatics and biostatistics

    DOI: 10.1007/978-3-642-35686-5_8
    Date of publication: 2012
    Book
    Image
  • Towards interpretable classifiers with blind signal separation

     Ruiz, Hector; Ortega Martorell, Sandra; Jarman, Ian H.; Vellido Alcacena, Alfredo; Martin Guerrero, Jose D.; Romero Merino, Enrique; Lisboa, Paulo J.G.
    International Conference on Neural Networks
    p. 1-7
    DOI: 10.1109/IJCNN.2012.6252783
    Presentation's date: 2012
    Presentation of work at congresses
  • Classifying malignant brain tumours from 1H-MRS data using Breadth Ensemble Learning  Open access

     Vilamala Muñoz, Albert; Belanche Muñoz, Luis Antonio; Vellido Alcacena, Alfredo
    International Conference on Neural Networks
    p. 1-8
    DOI: 10.1109/IJCNN.2012.6252756
    Presentation's date: 2012
    Presentation of work at congresses
    Access to the full text
  • Brain tumour classification using Gaussian decomposition and neural networks

     Arizmendi Pereira, Carlos Julio; Sierra Bueno, Daniel Alfonso; Vellido Alcacena, Alfredo; Romero Merino, Enrique
    IEEE Engineering in Medicine and Biology Society
    p. 5645-5648
    DOI: 10.1109/IEMBS.2011.6091366
    Presentation's date: 2011-08-30
    Presentation of work at congresses
  • A variational Bayesian approach for the robust analysis of the cortical silent period from EMG recordings of brain stroke patients

     Olier, Iván; Amengual, Julià; Vellido Alcacena, Alfredo
    Neurocomputing
    Vol. 74, num. 9, p. 1301-1314
    DOI: 10.1016/j.neucom.2010.12.006
    Date of publication: 2011-04
    Journal article
  • Severe sepsis mortality prediction with logistic regression over latent factors

     Ribas Ripoll, Vicent; Vellido Alcacena, Alfredo; Ruiz Rodriguez, Juan Carlos; Rello Condomines, Jordi
    Expert systems with applications
    Vol. 39, num. 22, p. 1937-1943
    DOI: 10.1016/j.eswa.2011.08.054
    Date of publication: 2011-02-01
    Journal article
  • Semi-supervised analysis of human brain tumours from partially labeled MRS information, using manifold learning models

     Cruz Barbosa, Raul; Vellido Alcacena, Alfredo
    International journal of neural systems
    Vol. 21, num. 1, p. 17-29
    DOI: 10.1142/S0129065711002626
    Date of publication: 2011-02
    Journal article
  • Binary classification of brain tumours using a discrete wavelet transform and energy criteria

     Arizmendi Pereira, Carlos Julio; Vellido Alcacena, Alfredo; Romero Merino, Enrique
    Latin American Symposium on Circuits and Systems
    p. 1-4
    DOI: 10.1109/LASCAS.2011.5750304
    Presentation's date: 2011-02
    Presentation of work at congresses
  • On the use of decision trees for ICU outcome prediction in sepsis patients treated with statins

     Ribas Ripoll, Vicent; Caballero López, Jesús; Ruiz Rodriguez, Juan Carlos; Ruiz Sanmartin, Adolfo; Rello, Jordi; Vellido Alcacena, Alfredo
    IEEE Symposium on Computational Intelligence and Data Mining
    p. 37-43
    DOI: 10.1109/CIDM.2011.5949439
    Presentation's date: 2011
    Presentation of work at congresses
  • Spectral decomposition methods for the analysis of MRS information from human brain tumors

     Ortega Martorell, Sandra; Vellido Alcacena, Alfredo; Lisboa, Paulo J.G.; Julià Sapé, Margarida; Arús, Carles
    International Conference on Neural Networks
    p. 3279-3284
    DOI: 10.1109/IJCNN.2011.6033656
    Presentation's date: 2011
    Presentation of work at congresses
  • Seeing is believing: the importance of visualization in real-world machine learning applications  Open access

     Vellido Alcacena, Alfredo; Martín, José David; Rossi, Fabrice; Lisboa, Paulo J.G.
    European Symposium on Artificial Neural Networks
    p. 219-226
    Presentation's date: 2011
    Presentation of work at congresses
    Access to the full text
  • Comparative diagnostic accuracy of linear and nonlinear feature extraction methods in a neuro-oncology problem

     Cruz Barbosa, Raul; Bautista Villavicencio, David; Vellido Alcacena, Alfredo
    Mexican Conference on Pattern Recognition
    p. 34-41
    DOI: 10.1007/978-3-642-21587-2_4
    Presentation's date: 2011
    Presentation of work at congresses
  • A probabilistic approach to the visual exploration of G protein-coupled receptor sequences  Open access

     Vellido Alcacena, Alfredo; Cárdenas Dominguez, Martha Ivón; Olier Caparroso, Ivan Alberto; Rovira, Xavier; Giraldo Arjonilla, Jesús
    European Symposium on Artificial Neural Networks
    p. 233-238
    Presentation's date: 2011
    Presentation of work at congresses
    Access to the full text
  • Brain tumor pathological area delimitation through non-negative matrix factorization

     Ortega Martorell, Sandra; Lisboa, Paulo J.G.; Vellido Alcacena, Alfredo; Simoes, Rui V.; Julià Sapé, Margarida; Arús, Carles
    IEEE International Conference On Data Mining
    p. 1058-1063
    DOI: 10.1109/ICDMW.2011.41
    Presentation's date: 2011
    Presentation of work at congresses
  • Severe sepsis mortality prediction with relevance vector machines

     Ribas Ripoll, Vicent; Ruiz Rodriguez, Juan Carlos; Wojdel, Anna; Caballero Lopez, Jesus; Rello Condomines, Jordi; Vellido Alcacena, Alfredo
    IEEE Engineering in Medicine and Biology Society
    p. 100-103
    DOI: 10.1109/IEMBS.2011.6089906
    Presentation's date: 2011
    Presentation of work at congresses
  • On the computation of the geodesic distance with an application to dimensionality reduction in a neuro-oncology problem

     Cruz Barbosa, Raul; Bautista Villavicencio, David; Vellido Alcacena, Alfredo
    Iberoamerican Conference on Pattern Recognition
    p. 483-490
    DOI: 10.1007/978-3-642-25085-9_57
    Presentation's date: 2011
    Presentation of work at congresses