Ara es mostren els items 1-20 de 22

  • Analysis of stereo images using connected operators 

    Oliveras Vergés, Albert; Garrido Ostermann, Luis; Salembier Clairon, Philippe Jean (IEEE COMPUTER SOCIETY, 1997)
    Text en actes de congrés
    Accés obert
    Connected operators are increasingly used in image processing due to their properties of simplifying the image with various criteria, without loosing contour's information. These properties are related to the connected ...
  • Anti-extensive connected operators with application to image sequences 

    Garrido Ostermann, Luis; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert (1997)
    Comunicació de congrés
    Accés obert
    Connected operators are increasingly used in image processing They are at tractive in applications where the signal has to be simplified without loosing information about the contours A large number of simplification ...
  • Antiextensive connected operators for image and sequence processing 

    Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert; Garrido Ostermann, Luis (1998-04)
    Article
    Accés obert
    This paper deals with a class of morphological operators called connected operators. These operators filter the signal by merging its flat zones. As a result, they do not create any new contours and are very attractive for ...
  • Designing CDIO capstone projects: a systems thinking approach 

    Alarcón Cot, Eduardo José; Bou Balust, Elisenda; Camps Carmona, Adriano José; Bragós Bardia, Ramon; Oliveras Vergés, Albert; Pegueroles Vallés, Josep R.; Sayrol Clols, Elisa; Marqués Acosta, Fernando (2013)
    Text en actes de congrés
    Accés obert
    Given the all-pervasiveness of Systems thinking -which consists of thinking about things as systemsas a way of reasoning, in this work we will describe its application to make an interpretation of how to conceive and ...
  • Ensemble learning and hierarchical data representation for microarray classification 

    Bosio, Mattia; Bellot Pujalte, Pau; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The microarray data classification is an open and active research field. The development of more accurate algorithms is of great interest and many of the developed techniques can be straightforwardly applied in analyzing ...
  • Feature set enhancement via hierarchical clustering for microarray classification 

    Bosio, Mattia; Bellot Pujalte, Pau; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A new method for gene expression classification is proposed in this paper. In a first step, the original feature set is enriched by including new features, called metagenes, produced via hierarchical clustering. In a ...
  • Filtrado transversal adaptativo de varianza constante para la ecualización de canal 

    Vázquez Grau, Gregorio; Gasull Llampallas, Antoni; Sánchez Umbría, Juan; Oliveras Vergés, Albert (1989)
    Text en actes de congrés
    Accés obert
    This paper describes the problem of lineal filtering of noisy data under a Maximum Likelihood objective. In this sense, the paper shows that a weighted square error cost function deals and it is necessary to weight the ...
  • Gene expression data classification combining hierarchical representation and efficient feature selection 

    Bosio, Mattia; Bellot Pujalte, Pau; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert (2012-12)
    Article
    Accés restringit per política de l'editorial
    A general framework for microarray data classification is proposed in this paper. It pro- duces precise and reliable classifiers through a two-step approach. At first, the original feature set is enhanced by a new set ...
  • Generalized connected operators 

    Oliveras Vergés, Albert; Salembier Clairon, Philippe Jean (SMITH ANSARI, 1996)
    Text en actes de congrés
    Accés obert
    This paper deals with the notion of connected operators These operators are becoming popular in image processing because they have the fundamental property of simplifying the signal while preserving the contour information ...
  • Hierarchical clustering combining numerical and biological similarities for gene expression data classification 

    Bosio, Mattia; Salembier Clairon, Philippe Jean; Bellot Pujalte, Pau; Oliveras Vergés, Albert (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    High throughput data analysis is a challenging problem due to the vast amount of available data. A major concern is to develop algorithms that provide accurate numerical predictions and biologically relevant results. A ...
  • Implementación y primeros resultados de la asignatura de introducción a la ingeniería en los nuevos grados de la ETSETB-UPC 

    Sayrol Clols, Elisa; Onrubia, Raúl; García Hernández, Miguel J.; Oliveras Vergés, Albert; Bragós Bardia, Ramon; Pegueroles Vallés, Josep R.; Alarcón Cot, Eduardo José; Camps Carmona, Adriano José; Sardà Ferrer, Joan; Consolación Segura, Carolina María; Mussons Sellés, Jaume; Pons Peregort, Olga (IEEE, 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    En este trabajo se describe la asignatura "Introducción a la Ingeniería de las TIC" que, basándose en restricciones y especificaciones iniciales, ha sido concebida, diseñada e implementada en la ETSETB de la UPC. Es la ...
  • Implementation and first results of the Introduction to Engineering course in the ETSETB-UPC new degrees 

    Sayrol Clols, Elisa; Onrubia, Raúl; García, Miguel; Oliveras Vergés, Albert; Bragós Bardia, Ramon; Pergueroles, Josep; Alarcón Cot, Eduardo José; Camps Carmona, Adriano José; Sardà Ferrer, Joan; Consolación Segura, Carolina María; Mussons Sellés, Jaume; Pons Peregort, Olga (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper describes the new course "Introduction to ICT Engineering" which has been conceived, designed and implemented at Telecom-BCN (ETSETB-UPC) from initial specifications and restrictions. It is the first of a series ...
  • Maximum likelihood factor analysis in malaria cytokines analysis and modelling 

    Oliveras Vergés, Albert (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-05-17)
    Comunicació de congrés
    Accés obert
    A maximum likelihood factor analysis (MLFA) of the dynamics of the human immune system in malaria, based on the observation of a few cytokine in plasma, suggests that an increased overproduction of cytokines: IL-12, IL-6, ...
  • Microarray classification with hierarchical data representation and novel feature selection criteria 

    Bosio, Mattia; Bellot Pujalte, Pau; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Microarray data classification is a challenging prob- lem due to the high number of variables compared to the small number of available samples. An effective methodology to output a precise and reliable classifier is ...
  • Morphological tools for segmentation: connected operators and watersheds 

    Meyer, F; Oliveras Vergés, Albert; Salembier Clairon, Philippe Jean; Vachier, C (1997-08)
    Article
    Accés restringit per política de l'editorial
    The paper makes a survey of the morphological tools which are useful for image simplification and segmentation. It starts presenting the connected filters, which have the unique feature to simplify the images without ...
  • Motion connected operators for image sequences 

    Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert; Garrido Ostermann, Luis (1996)
    Text en actes de congrés
    Accés obert
    This paper deals with motion-oriented connected operators. These operators eliminate from an original sequence the components that do not undergo a specific motion (defined as a filtering parameter). As any connected ...
  • Multiclass cancer-microarray classification algorithm with Pair-Against-All redundancy 

    Bosio, Mattia; Bellot Pujalte, Pau; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Multiclass cancer classification is still a challenging task in the field of machine learning. A novel multiclass approach is proposed in this work as a combination of multiple binary classifiers. It is an example of Error ...
  • NetBenchmark: a bioconductor package for reproducible benchmarks of gene regulatory network inference 

    Bellot Pujalte, Pau; Olsen, Catharina; Salembier Clairon, Philippe Jean; Oliveras Vergés, Albert; Meyer, Patrick E. (2015-09-29)
    Article
    Accés obert
    Background: In the last decade, a great number of methods for reconstructing gene regulatory networks from expression data have been proposed. However, very few tools and datasets allow to evaluate accurately and reproducibly ...
  • Practical extensions of connected operators 

    Oliveras Vergés, Albert; Salembier Clairon, Philippe Jean (KLUWER ACADEMIC PUB. KLUWER ACADEMIC PUBLISHERS, 1996)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper deals with the notion of connected operators. These operators are becoming popular in image processing because they have the fundamental property of simplifying the signal while preserving the contour information. ...
  • Simbad: a tool for speech analysis and synthesis 

    Nadeu Camprubí, Climent; Mariño Acebal, José Bernardo; Oliveras Vergés, Albert (1990)
    Text en actes de congrés
    Accés obert
    SIMBAD has been developed to facilitate the tasks involved in the design of a concatenative speech synthesis system: 1) building a dictionary of parameterized speech units, and 2) obtaining a set of rules to concatenate ...