Tong Zhang

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This paper presents an approach to simulate the mental activities of children during their interaction with computers through their spoken language. The mental activities are categorized into three states: confidence, confusion and frustration. Two knowledge sources are used in the detection. One is prosody, which indicates utterance type and user's(More)
This paper presents a hybrid model to understand spontaneous speech by combination of speech connotation and denotation analyses. The testbed of the approach is an intelligent tutoring system (ITS) collected by Wizard-of-Oz (WoZ) simulations. The children users are inexperienced and their utterances are often dysfluent and have loose grammar structure. To(More)
This paper represents an approach to simulate the mental activities of children during their interaction with computers through their spoken language. The mental activities are categorized into three states: confidence, confusion and frustration. Four knowledge sources are used in the detection. One is prosody, which is indicative of utterance type and(More)
9 Abstract 10 This paper computationalizes two linguistic concepts, contrast and focus, for the extraction of pragmatic and seman-11 tic salience from spontaneous speech. Contrast and focus have been widely investigated in modern linguistics, as cat-12 egories that link intonation and information/discourse structure. This paper demonstrates the automatic(More)
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