A Study of Category Expansion for Related Entity Finding
Entity is an important information carrier in Web pages. Searchers often want a ranked list of relevant entities directly rather a list of documents. So the research of related entity finding (REF) is very meaningful. In this paper we investigate the most important task of REF: Entity Ranking. To address the issue of wrong entity type in entity ranking: some retrieved entities dont belong to the target entity type. We make use of category expansion to deal with the issue of wrong entity type polluting entity ranking. We use Wikipedia and Dbpedia as data sources in the experiment. We found category expansion based on original type achieves a better result in recall and precision proved by experiment.
related entity finding entity entity ranking type filtering
Junsan Zhang Youli Qu
School of Computer and Information Technology Beijing Jiaotong University Beijing, China
国际会议
杭州
英文
185-188
2011-10-28(万方平台首次上网日期,不代表论文的发表时间)