TAILIEUCHUNG - Báo cáo khoa học: "A Syntactic Framework for Speech Repairs and Other Disruptions"

This paper presents a grammatical and processing framework for handling the repairs, hesitations, and other interruptions i n natural human dialog. The proposed framework has proved adequate for a collection of human-human task-oriented dialogs, both in a full manual examination of the corpus, and in tests with a parser capable of parsing some of that corpus. This parser can also correct a pre-parser speech repair identifier resulting in a increase in recall. | A Syntactic Framework for Speech Repairs and Other Disruptions Mark G. Core and Lenhart K. Schubert Department of Computer Science University of Rochester Rochester NY 14627 mcore schubert@ Abstract This paper presents a grammatical and processing framework for handling the repairs hesitations and other interruptions in natural human dialog. The proposed framework has proved adequate for a collection of human-human task-oriented dialogs both in a full manual examination of the corpus and in tests with a parser capable of parsing some of that corpus. This parser can also correct a pre-parser speech repair identifier resulting in a increase in recall. 1 Motivation The parsers used in most dialog systems have not evolved much past their origins in handling written text even though they may have to deal with speech repairs speakers collaborating to form utterances and speakers interrupting each other. This is especially true of machine translators and meeting analysis programs that deal with human-human dialog. Speech recognizers have started to adapt to spoken dialog versus read speech . Recent language models Heeman and Allen 1997 Stolcke and Shriberg 1996 Siu and Ostendorf 1996 take into account the fact that word cooccurrences may be disrupted by editing terms1 and speech repairs take the tanker I mean the boxcar . These language models detect repairs as they process the input however like past work on speech repair detection they do not 1Here we define editing terms as a set of 30-40 words that signal hesitations um and speech repairs I mean and give meta-comments on the utterance right . specify how speech repairs should be handled by the parser. Kindle 1983 and Bear et al. 1992 performed speech repair identification in their parsers and removed the corrected material reparandum from consideration. Kindle 1983 states that repairs are available for semantic analysis but provides no details on the representation to be used. Clearly repairs .

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