Crosslingual Opinion Extraction from Author and Authority Viewpoints at NTCIR-6
Yohei Seki · 2007
Opinion research has been paid much attention by the Information Retrieval community, and opinion holder extraction research is important for discrimi-nating between opinions that are viewed from different perspectives. In this paper, we describe our experi-ence of participation in the NTCIR-6 Opinion Analy-sis Pilot Task by focusing on opinion extraction results in Japanese and English. Our approach to opinion holder extraction was based on the discrimination be-tween author and authority viewpoints in opinionated sentences, and the evaluation results were fair with re-spect to the Japanese documents.