Building Japanese Predicate-argument Structure Corpus using Lexical Conceptual Structure

This paper introduces our study on creating a Japanese corpus that is annotated using semantically-motivated predicate-argument struc-tures. We propose an annotation framework based on Lexical Conceptual Structure (LCS), where semantic roles of arguments are represented through a semantic structure decomposed by several primitive predicates. As a first stage of the project, we extended Jack-endoff’s LCS theory to increase generality of expression and coverage for verbs frequently appearing in the corpus, and successfully created LCS structures for 60 frequent Japanese predicates in Kyoto university Text Corpus (KTC). In this paper, we report our frame-work for creating the corpus and the current status of creating an LCS dictionary for Japanese predicates