Combining supervised & unsupervised learning to discover emotional classes

Miguel Arevalillo-Herráez; Aladdin Ayesh; Olga C. Santos; Pablo Arnau-Gonzáalez

doi:10.1145/3079628.3079630

Combining supervised & unsupervised learning to discover emotional classes

Miguel Arevalillo-Herráez, Aladdin Ayesh, Olga C. Santos, Pablo Arnau-Gonzáalez

Research output: Chapter in Book/Report/Conference proceeding › Published conference contribution

1 Citation (Scopus)

Abstract

Most previous work in emotion recognition has fixed the available classes in advance, and a.empted to classify samples into one of these classes using a supervised learning approach. In this paper, we present preliminary work on combining supervised and unsupervised learning to discover potential latent classes which were not initially considered. To illustrate the potential of this hybrid approach, we have used a Self-Organizing Map (SOM) to organize a large number of Electroencephalogram (EEG) signals from subjects watching videos, according to their internal structure. Results suggest that a more useful labelling scheme could be produced by analysing the resulting topology in relation to user reported valence levels (i.e., pleasan tness) for each signal, refining the original set of target classes.

Original language	English
Title of host publication	UMAP 2017 - Proceedings of the 25th Conference on User Modeling, Adaptation and Personalization
Publisher	Association for Computing Machinery, Inc
Pages	355-356
Number of pages	2
ISBN (Electronic)	9781450346351
DOIs	https://doi.org/10.1145/3079628.3079630
Publication status	Published - 9 Jul 2017
Event	25th ACM International Conference on User Modeling, Adaptation, and Personalization, UMAP 2017 - Bratislava, Slovakia Duration: 9 Jul 2017 → 12 Jul 2017

Conference

Conference	25th ACM International Conference on User Modeling, Adaptation, and Personalization, UMAP 2017
Country/Territory	Slovakia
City	Bratislava
Period	9/07/17 → 12/07/17

Keywords

Affective computing
Class discovery
Cluster analysis
EEG
Personalization
User modelling

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10.1145/3079628.3079630

Cite this

Combining supervised & unsupervised learning to discover emotional classes. / Arevalillo-Herráez, Miguel; Ayesh, Aladdin; Santos, Olga C. et al.

UMAP 2017 - Proceedings of the 25th Conference on User Modeling, Adaptation and Personalization. Association for Computing Machinery, Inc, 2017. p. 355-356.

Research output: Chapter in Book/Report/Conference proceeding › Published conference contribution

Arevalillo-Herráez, M, Ayesh, A, Santos, OC & Arnau-Gonzáalez, P 2017, Combining supervised & unsupervised learning to discover emotional classes. in UMAP 2017 - Proceedings of the 25th Conference on User Modeling, Adaptation and Personalization. Association for Computing Machinery, Inc, pp. 355-356, 25th ACM International Conference on User Modeling, Adaptation, and Personalization, UMAP 2017, Bratislava, Slovakia, 9/07/17. https://doi.org/10.1145/3079628.3079630

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abstract = "Most previous work in emotion recognition has fixed the available classes in advance, and a.empted to classify samples into one of these classes using a supervised learning approach. In this paper, we present preliminary work on combining supervised and unsupervised learning to discover potential latent classes which were not initially considered. To illustrate the potential of this hybrid approach, we have used a Self-Organizing Map (SOM) to organize a large number of Electroencephalogram (EEG) signals from subjects watching videos, according to their internal structure. Results suggest that a more useful labelling scheme could be produced by analysing the resulting topology in relation to user reported valence levels (i.e., pleasan tness) for each signal, refining the original set of target classes.",

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Combining supervised & unsupervised learning to discover emotional classes

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Keywords

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