Automatic Determination of "Enthusiasm" in Dialogues Using Word Co-occurrence

Michimasa INABA  Fujio TORIUMI  Kenichiro ISHII  

Publication
D - Abstracts of IEICE TRANSACTIONS on Information and Systems (Japanese Edition)   Vol.J94-D   No.1   pp.59-67
Publication Date: 2011/01/01
Online ISSN: 1881-0225
DOI: 
Print ISSN: 1880-4535
Type of Manuscript: Special Section PAPER (Special Section on Human Communication --Fundamental Techniques for Construction of Human-centered Information Environment--)
Category: 
Keyword: 
dialogue,  word co-occurrence,  CRF,  non-task-oriented,  

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Summary: 
Recently, computerized dialogue agents are studied actively. However, most of the studies of the dialogue agents are related to the task-oriented dialogue agents. That is, there are few studies of non-task-oriented dialogue agents. The analysis of dialogues between humans is necessary to make a practical system that can present enthusiastic dialogues. In this paper, we propose an automatic method that evaluates "enthusiastic" utterances in a dialogue using Conditional Random Fields (CRF). We use word co-occurence that extracted from large scale corpora as a feature to measure strength between utterances. As a result, our method indicates as much performance as human determinations.