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Facial expressions convey human emotions as a simple and effective non-verbal communication method. Motivated by this special characteristic, facial expression recognition rapidly gains attention in social computing fields, especially in Human Computer Interaction (HCI). Identifying the optimal set of facial emotion markers is an important technique that(More)
Emotion recognition plays a vital role in the field of Human-Computer Interaction (HCI). Among the visual human emotional cues, facial expressions are the most commonly used and understandable cues. Different machine learning techniques have been utilized to solve the expression recognition problem; however, their performance is still disputed. In this(More)
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