Cited by 155Bayesian Modeling and Causal InferenceEmotion and Mood RecognitionFace and Expression Recognition

Learning Bayesian network classifiers for facial expression recognition both labeled and unlabeled data

Cohen, I., Sebe, N., Gozman, F.G., Cirelo, M.C., Huang, T.S.·2003·2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings.

Abstract

Understanding human emotions is one of the necessary skills for the computer to interact intelligently with human users. The most expressive way humans display emotions is through facial expressions. In this paper, we report on several advances we have made in building a system for classification of facial expressions from continuous video input. We use Bayesian network classifiers for classifying expressions from video. One of the motivating factor in using the Bayesian network classifiers is their ability to handle missing data, both during inference and training. In particular, we are interested in the problem of learning with both labeled and unlabeled data. We show that when using unlabeled data to learn classifiers, using correct modeling assumptions is critical for achieving improved classification performance. Motivated by this, we introduce a classification driven stochastic structure search algorithm for learning the structure of Bayesian network classifiers. We show that with moderate size labeled training sets and large amount of unlabeled data, our method can utilize unlabeled data to improve classification performance. We also provide results using the Naive Bayes (NB) and the Tree-Augmented Naive Bayes (TAN) classifiers, showing that the two can achieve good performance with labeled training sets, but perform poorly when unlabeled data are added to the training set.

Integrity signals

Registry

Crossref · 10.1109/cvpr.2003.1211408

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Authors
Cohen, I., Sebe, N., Gozman, F. G., Cirelo, M. C., & Huang, T. S.
Affiliations
  • University of Illinois Urbana-Champaign (US)
  • Leiden University (NL)
  • Universidade de São Paulo (BR)
Venue
2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings.
Published
2003-11-21
Pages
I-595-I-601
ISSN
1063-6919 (ISSN-L)
OpenAlex
W2141522145
Cited by
155
References
24
Citations by year
2026: 1 · 2024: 2 · 2023: 4 · 2022: 5 · 2021: 3 · 2020: 7 · 2019: 5 · 2018: 9 · 2017: 5 · 2016: 12 · 2015: 4 · 2014: 10 · 2013: 6 · 2012: 9
FWCI
8.57
Type
conference paper
Language
en
Open access
closed
Locations
IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings (publishedVersion)
Funders
National Science Foundation
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Bayesian Modeling and Causal Inference
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Emotion and Mood Recognition
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Face and Expression Recognition
Keywords
facial expression recognition, Bayesian network classifiers, semi-supervised learning, unlabeled data, structure learning, missing data, naive Bayes, tree augmented naive Bayes, emotion recognition

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