Research Article
HMM Modeling of User Mood through Recognition of Vocal Emotions
@INPROCEEDINGS{10.1007/978-3-642-36642-0_23, author={Krishna Asawa and Raj Vardhan}, title={HMM Modeling of User Mood through Recognition of Vocal Emotions}, proceedings={Context-Aware Systems and Applications. First International Conference, ICCASA 2012, Ho Chi Minh City, Vietnam, November 26-27, 2012, Revised Selected Papers}, proceedings_a={ICCASA}, year={2013}, month={2}, keywords={Mood detection Hidden Markov models affective computing}, doi={10.1007/978-3-642-36642-0_23} }- Krishna Asawa
Raj Vardhan
Year: 2013
HMM Modeling of User Mood through Recognition of Vocal Emotions
ICCASA
Springer
DOI: 10.1007/978-3-642-36642-0_23
Abstract
This paper aims at defining a real-time probabilistic model for user’s mood in its dialect with a software agent, which has a long-term goal of counseling the user in the domain of “coping with exam pressure”. We propose a new approach based on Hidden Markov Models (HMMs) to describe the differences in the sequence of emotions expressed due to different moods experienced by users. During real time operation, each user move is passed on to a vocal affect recognizer. The decisions from the recognizer about the kind of emotion expressed are then mapped into code-words to generate a sequence of discrete symbols for HMM models of each mood. We train and test the system using corpora of the temporal sequences of tagged emotional utterances by six male and six female adult Indians in English and Hindi language. Our system achieved an average f-measure rating for all moods of approximately 78.33%.