面向信息处理的语境形式化研究

在自然语言处理研究领域中,句法研究已经取得了可喜的进展,语义研究也日益受到重视。但要真正实现计算机理解自然语言的目标,还必须进一步深入开展语用分析研究,目前还很少有这方面的研究成果。语境是语用学研究中的重要内容,本文首先讨论了现代语言学关于语境的定义,对计算语言学中的语境作了科学的界定,然后给出了语境及其相关概念的形式定义,并结合汉语实例进行了分析。最后指出“计算语用学”这一计算语言学领域中的新兴学科将大有可为。

Study on the Formalization of Information Processing-oriented Context

One of the key issues in Natural Language Understanding (NLU) is which one of the meanings of a polysemous word or a multi meaning sentence should be chosen. To deal with this problem, we should concern about not only disambiguation of word, but also of sentence and discourse. Former studies on context are just limited in modern linguistics, but not applied in NLU. Our research aims at constructing the theory of context based NLU. Because context is one of the most important factors in pragmatics, we first discuss the meaning of context in modern linguistics, then put forward a formal definition of context in computational linguistics, and give examples of Chinese language understanding based on context. As a result, we point out that a new branch of computational linguistics computational pragmatics will play an important role in the field of computational linguistics.