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• W2978584378 abstract "This paper addresses nonverbal behavior analysis for the classification of perceived personality traits using novel deep visual activity (VA)-based features extracted only from key-dynamic images. Dynamic images represent short-term VA. Key-dynamic images carry more discriminative information i.e., nonverbal features (NFs) extracted from them contribute to the classification more than NFs extracted from other dynamic images. Dynamic image construction, learning long-term VA with CNN+LSTM, and detecting spatio-temporal saliency are applied to determine key-dynamic images. Once VA-based NFs are extracted, they are encoded using covariance, and resulting representation is used for classification. This method was evaluated on two datasets: small group meetings and vlogs. For the first dataset, proposed method outperforms not only the state-of-the-art VA-based methods but also multi-modal approaches for all personality traits. For extraversion classification, it performs better than i) the most popular key-frames selection algorithm, ii) random and uniform dynamic image selection, and iii) NFs extracted from all dynamic images. Furthermore, the ablation study proves the superiority of proposed method. For the further dataset, it performs as well as the state-of-the-art visual-NFs on average, while showing improved performance for agreeableness classification. Proposed method can be adapted to any application based on nonverbal behavior analysis, thanks to being data-driven." @default.
• W2978584378 created "2019-10-10" @default.
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• W2978584378 date "2021-10-01" @default.
• W2978584378 modified "2023-10-16" @default.
• W2978584378 title "Personality Traits Classification Using Deep Visual Activity-Based Nonverbal Features of Key-Dynamic Images" @default.
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• W2978584378 doi "https://doi.org/10.1109/taffc.2019.2944614" @default.
• W2978584378 hasPublicationYear "2021" @default.
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