本論文では, 言い直しを扱うための句構造規則を書き言葉のための句構造規則とともに用いることにより, 言い直しを含む発話を解析する方法を提案する.言い直しが言い直し対象部, 編集表現, 言い直し部の3部分からなるとするモデルに基づき, 交通経路案内対話中の言い直しを調査し, 言い直し対象部と言い直し部の構文意味的関係から5種類に分類した.またこれとは独立に, 編集表現の内容から4種類に分類した.これらの分類をもとに, 言い直しを扱うための句構造規則を作成し, 書き言葉用の規則および辞書と話し言葉特有の語の辞書を持つ単一化文法に付加した.解析実験により, この文法によって言い直しを含む発話が解析できることを確認した. : This paper presents a method for parsing utterances including self-repairs in Japanese
... [Show full abstract] dialogs by using phrase structure rules for self-repairs with ordinary phrase structure rules for written sentences. Self-repairs in route direction dialogs are investigated based on a model in which a self-repair consists of the reparandum part, the editing expression, and the repair part. Self-repairs are classified into five categories according to the syntactic and semantic relationship between the reparandum part and the repair part, and they are also classified into four categories according to the content of the editing expressions. Based on the classification, phrase structure rules for dealing with self-repairs are constructed and added to a unification-based grammar for Japanese written sentences extended with lexical entries for words peculiar to spoken language.