tailieunhanh - Báo cáo khoa học: "Detecting and Correcting Speech Repairs"

Interactive spoken dialog provides many new challenges for spoken language systems. One of the most critical is the prevalence of speech repairs. This paper presents an algorithm that detects and corrects speech repairs based on finding the repair pattern. The repair pattern is built by finding word matches and word replacements, and identifying fragments and editing terms. Rather than using a set of prebuilt templates, we build the pattern on the fly. In a fair test, our method, when combined with a statistical model to filter possible repairs, was successful at detecting and correcting 80% of the repairs, without. | Detecting and Correcting Speech Repairs Peter Heeman and James Allen Department of Computer Science University of Rochester Rochester New York 14627 heeman james @ Abstract Interactive spoken dialog provides many new challenges for spoken language systems. One of the most critical is the prevalence of speech repairs. This paper presents an algorithm that detects and corrects speech repairs based on finding the repair pattern. The repair pattern is built by finding word matches and word replacements and identifying fragments and editing terms. Rather than using a set of prebuilt templates we build the pattern on the fly. In a fair test our method when combined with a statistical model to filter possible repairs was successful at detecting and correcting 80 of the repairs without using prosodic information or a parser. Introduction Interactive spoken dialog provides many new challenges for spoken language systems. One of the most critical is the prevalence of speech repairs. Speech repairs are dysfluencies where some of the words that the speaker utters need to be removed in order to correctly understand the speaker s meaning. These repairs can be divided into three types fresh starts modifications and abridged. A fresh start is where the speaker abandons what she was saying and starts again. the current plan is we take - okay let s say we start with the bananas Utt 105 A modification repair is where the speech-repair modifies what was said before. after the orange juice is at - the oranges are at the OJ factory Utt59 An abridged repair is where the repair consists solely of a fragment and or editing terms. we need to - um manage to get the bananas to Dansville more quickly utt50 These examples also illustrate how speech repairs can be divided into three intervals the removed text the editing terms and the resumed text cf. Levelt 1983 Nakatani and Hirschberg 1993 . The removed text which might end in a word fragment is the .

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• Detecting and Correcting Speech Repairs
• James Allen
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