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• W2767546953 abstract "Emotion perception is person-dependent and variable. Dimensional characterizations of emotion can capture this variability by describing emotion in terms of its properties (e.g., valence, positive vs. negative, and activation, calm vs. excited). However, in many emotion recognition systems, this variability is often considered noise and is attenuated by averaging across raters. Yet, inter-rater variability provides information about the subtlety or clarity of an emotional expression and can be used to describe complex emotions. In this paper, we investigate methods that can effectively capture the variability across evaluators by predicting emotion perception as a discrete probability distribution in the valence-activation space. We propose: (1) a label processing method that can generate two-dimensional discrete probability distributions of emotion from a limited number of ordinal labels; (2) a new approach that predicts the generated probabilistic distributions using dynamic audio-visual features and Convolutional Neural Networks (CNNs). Our experimental results on the MSP-IMPROV corpus suggest that the proposed approach is more effective than the conventional Support Vector Regressions (SVRs) approach with utterance-level statistical features, and that feature-level fusion of the audio and video modalities outperforms decision-level fusion. The proposed CNN model predominantly improves the prediction accuracy for the valence dimension and brings a consistent performance improvement over data recorded from natural interactions. The results demonstrate the effectiveness of generating emotion distributions from limited number of labels and predicting the distribution using dynamic features and neural networks." @default.
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• W2767546953 date "2017-11-03" @default.
• W2767546953 modified "2023-09-24" @default.
• W2767546953 title "Predicting the distribution of emotion perception: capturing inter-rater variability" @default.
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• W2767546953 doi "https://doi.org/10.1145/3136755.3136792" @default.
• W2767546953 hasPublicationYear "2017" @default.
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