Paper: Citation Author Topic Model in Expert Search

ACL ID C10-2145
Title Citation Author Topic Model in Expert Search
Venue International Conference on Computational Linguistics
Session Poster Session
Year 2010

This paper proposes a novel topic model, Citation-Author-Topic (CAT) model that addresses a semantic search task we define as expert search – given a research area as a query, it returns names of experts in this area. For example, Michael Collins would be one of the top names retrieved given the query Syntactic Parsing. Our contribution in this paper is two-fold. First, we model the cited author informa- tion together with words and paper au- thors. Such extra contextual information directly models linkage among authors and enhances the author-topic association, thus produces more coherent author-topic distribution. Second, we provide a prelim- inary solution to the task of expert search when the learning repository contains ex- clusively research related documents au- thored by the expe...