Browsing by Author "Llorà Fàbrega, Xavier"
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Analisi de l'avaluació incremental i de l'aplicació eficient de l'Algorisme Genètic en un Sistema Classificador
Bernadó Mansilla, Ester; Garrell i Guiu, Josep Maria; Llorà Fàbrega, Xavier (2001-10)Aquest article parteix de l'ana!isi del sistema MOLeeS, un sistema classificador (eS) que evoluciona un conjunt de regles de classificació a partir d'algorismes genetics (GA). El sistema es descomposa ... -
Classifying Microcalcifications in Digital Mammograms using Machine Learning techniques
Golobardes, Elisabet; Martí, Joan; Español, Josep; Salamó Llorente, Maria; Freixenet, Jordi; Llorà Fàbrega, Xavier; Maroto, Albert; Bernadó Mansilla, Ester (2001-10)This paper presents a Computer Aided Diagnosis (CAD) of breast cancer from mammograms. The first part involves severa! image processing techniques, which extract a set of features from the microcalcifications ... -
Evolution of Decision Trees
Llorà Fàbrega, Xavier; Garrell i Guiu, Josep Maria (2001-10)This paper addresses the issue of the induction of orthogonal, oblique and multivariate decision trees. Algorithms proposed by other researchers use heuristic, usually based on the information gain ... -
Evolutionary weight tuning based on diphone pairsfor unit selection speech synthesis
Alías Pujol, Francesc; Llorà Fàbrega, Xavier (2003-09-01)Unit selection text-to-speech (TTS) conversion is an ongoingresearch for the speech synthesis community. This paper isfocused on tuning the weights involved in the target and con-catenation cost metrics. ... -
Genetic Classifier System as a heuristic weighting method for a Case-Based Classifier System
Golobardes, Elisabet; Llorà Fàbrega, Xavier; Garrell i Guiu, Josep Maria; Vernet Bellet, David; Bacardit Peñarroya, Jaume (2000-10)This paper proposes how to use a Genetic Classifier System as a heuristic weighting method for a Case-Based Classifier System. The preliminary results are performed into a specific domain: the prediction ... -
Iniciativas para motivar a los alumnos de Programación
Salamó Llorente, Maria; Camps Dausà, Joan; Vallespí, Carles; Vernet Bellet, David; Llorà Fàbrega, Xavier; Bernadó Mansilla, Ester; Garrell i Guiu, Josep Maria; González, Xavier (2000-09)La asignatura de Programación constituye una base fundamental para las diversas carreras de ingeniería. Los posibles enfoques que se pueden utilizar, tanto de contenidos como de método docente, son muy ...