tailieunhanh - Báo cáo khoa học: " Pronominalization in Generated Discourse and Dialogue"
Previous approaches to pronominalization have largely been theoretical rather than applied in nature. Frequently, such methods are based on Centering Theory, which deals with the resolution of anaphoric pronouns. But it is not clear that complex theoretical mechanisms, while having satisfying explanatory power, are necessary for the actual generation of pronouns. We first illustrate examples of pronouns from various domains, describe a simple method for generating pronouns in an implemented multi-page generation system, and present an evaluation of its performance. . | Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics ACL Philadelphia July 2002 pp. 88-95. Pronominalization in Generated Discourse and Dialogue Charles B. Callaway Istituto per la Ricerca Scientifica e Tecnologica ITC-irst Italy callaway@ James C. Lester Department of Computer Science North Carolina State University USA lester@ Abstract Previous approaches to pronominalization have largely been theoretical rather than applied in nature. Frequently such methods are based on Centering Theory which deals with the resolution of anaphoric pronouns. But it is not clear that complex theoretical mechanisms while having satisfying explanatory power are necessary for the actual generation of pronouns. We first illustrate examples of pronouns from various domains describe a simple method for generating pronouns in an implemented multi-page generation system and present an evaluation of its performance. 1 Introduction Pronominalization is an important element in the automatic creation of multi-paragraph and multi-page texts using natural language generation NLG . Authors routinely use pronouns in texts spanning all types of genres such as newspaper copy science fiction and even academic papers. Indeed without pronouns texts quickly become confusing as readers begin to pay more attention to the writing style than to the content that makes the text informative or enjoyable Callaway and Lester 2001a . Even worse incorrect pronouns can lead readers to misinterpret the text or draw unsound inferences. Furthermore current pronominalization strategies are ill-equipped to deal with the wide variety of reasons that pronouns are used in naturally occurring texts. Almost without exception they focus on anaphoric pronouns as described in Focus Centering Theory Webber 1979 Sidner 1983 Grosz and Sid-ner 1986 Walker 1998 ignoring the multitude of other possible types. However it is certainly true that authors make use of pronouns
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