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为解决口语对话系统 Easy Nav中大量出现的语境省略现象 ,提出了用于刻画关注状态的主题结构 ,其动态生成的特点适合于在用户主导的场景下 ,对主题的变化进行建模。通过分析省略现象与指代现象的不同与联系 ,将指代分析的指导理论与处理流程延伸到省略分析中 ,从原先以句法结构信息为主进行省略分析 ,扩展到以语义知识和会话因素为主。提出的进行省略分析的主题结构方法 ,不仅使处理各种省略成分的方法统一 ,而且将片断型省略、缺省型省略也统一在同一个处理框架中
In order to solve the large number of context omissions in the spoken dialogue system Easy Nav, a topic structure for describing the state of interest is proposed. Its dynamically generated features are suitable for modeling the theme change in a user-directed scenario. By analyzing the difference and connection between ellipsis and referring to phenomena, the guiding theory and process of referring to the analysis are extended to the ellipsis analysis. Omitted from the original syntactic structure information, the original analysis is expanded to include semantic knowledge and conversational factors as the Lord. The proposed topic structure method for ellipsis analysis not only unifies the methods for processing various omission components but also integrates the fragment type and the default type omission in the same processing framework