Integration of Dependency Analysis with Semantic Analysis Referring to the Context
Yuki Ikegaya, Yasuhiro Noguchi, Satoru Kogure, Tatsuhiro Konishi, Makoto Kondo, Hideki Aso, Akira Takagi, Ito Yukihiro · Institutional Repositories DataBase (IRDB) · 2005
This paper describes how to perform syntactic parsing and semantic analysis using the contextual information as a language understanding component in a dialog system. Although syntactic parsing and semantic analysis are often conducted independently of each other, correct parsing of a sentence often requires the semantic information on the input and/or the contextual information prior to the input. We therefore merge syntactic parsing with semantic analysis, which enables syntactic parsing to take advantage of the semantic content of an input and its contextual information. To use contextual information, the semantic representation of an input should have a comparable form to the semantic content of the preceding context. Accordingly, we employ a framework for semantic representations that achieves such comparison. We take dialogs of hotel search and reservation for example, and demonstrate the effectiveness of the proposed method. The experimental results confirm that the proposed system achieves high accuracy in parsing and generation of semantic representations. 1.