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Aitor Álvarez
Researcher at University of the Basque Country
Publications - 8
Citations - 115
Aitor Álvarez is an academic researcher from University of the Basque Country. The author has contributed to research in topics: Feature (machine learning) & Gesture recognition. The author has an hindex of 7, co-authored 8 publications receiving 108 citations.
Papers
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Journal ArticleDOI
Classifier Subset Selection for the Stacked Generalization Method Applied to Emotion Recognition in Speech.
TL;DR: A new supervised classification paradigm, called classifier subset selection for stacked generalization (CSS stacking), is presented to deal with speech emotion recognition by means of an integration of an estimation of distribution algorithm (EDA) in the first layer to select the optimal subset from the standard base classifiers.
Journal Article
Feature subset selection based on evolutionary algorithms for automatic emotion recognition in spoken spanish and standard basque language
Aitor Álvarez,Idoia Cearreta,Juan Miguel López,Andoni Arruti,Elena Lazkano,Basilio Sierra,Nestor Garay +6 more
TL;DR: A study performed to analyze different Machine Learning techniques validity in automatic speech emotion recognition area using a bilingual affective database and techniques based on evolutive algorithms to select speech feature subsets that optimize automatic emotion recognition success rate.
Journal ArticleDOI
Feature selection for speech emotion recognition in Spanish and Basque: on the use of machine learning to improve human-computer interaction.
TL;DR: An attempt to select the most significant features for emotion recognition in spoken Basque and Spanish Languages using different methods for feature selection shows that an instance-based learning algorithm using feature subset selection techniques based on evolutionary algorithms is the best Machine Learning paradigm in automatic emotion recognition.
Book ChapterDOI
Feature subset selection based on evolutionary algorithms for automatic emotion recognition in spoken spanish and standard basque language
Aitor Álvarez,Idoia Cearreta,Juan Miguel López,Andoni Arruti,Elena Lazkano,Basilio Sierra,Nestor Garay +6 more
TL;DR: In this article, different speech parameters have been calculated for each audio recording and several Machine Learning techniques have been applied to evaluate their usefulness in speech emotion recognition in this particular case, techniques based on evolutive algorithms have been used to select speech feature subsets that optimize automatic emotion recognition success rate.
Proceedings Article
SAVAS: Collecting, Annotating and Sharing Audiovisual Language Resources for Automatic Subtitling
Arantza del Pozo,Carlo Aliprandi,Aitor Álvarez,Carlos Mendes,João Paulo Neto,Sérgio Paulo,Nicola Piccinini,Matteo Raffaelli +7 more
TL;DR: This paper describes the data collection, annotation and sharing activities carried out within the FP7 EU-funded SAVAS project, which aims to collect, share and reuse audiovisual language resources from broadcasters and subtitling companies to develop large vocabulary continuous speech recognisers in specific domains and new languages.