Dependency relation analysis using case frame for encyclopedia question-answering system

One of the principal challenges of natural language processing is a natural language parsing. In this paper, we suggest a dependency parsing approach based on case frame with chunk, distance information, existence of case, and clausal information for encyclopedia QA system. Because we cannot construct case frames for all verbs, we use distance information, existence of case, and clausal information for the absence of case frame. In addition to dependency parsing, we use post-processing for applying to Korean encyclopedia QA system.