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Speech & natural language publications September 1, 2009 Conference Paper

Modeling other talkers for improved dialog act recognition in meetings

SRI International September 1, 2009

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K. Laskowski and E. Shriberg, “Modeling other talkers for improved dialog act recognition in meetings,” in Proc. 10th Annual Conference of the International Speech Communication Association 2009 (INTERSPEECH 2009), pp. 2783–2786.

Abstract

Automatic dialog act (DA) modeling has been shown to benefit meeting understanding, but current approaches to DA recognition tend to suffer from a common problem: they under-represent behaviors found at turn edges, during which the “floor”is negotiated among meeting participants. We propose a new approach that takes into account speech from other talkers, relying only on speech/non-speech information from all participants. We find (1) that modeling other participants improves DA detection, even in the absence of other information, (2) that only the single locally most talkative other participant matters, and (3) that 10 seconds provides a sufficiently large local context. Results further show significant performance improvements over a lexical-only system particularly for the DAs of interest. […]

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