Combining Candidate and Document Models for Expert Search

: We describe our participation in the TREC 2008 Enterprise track and detail our language modeling-based approaches. For document search, our focus was on query expansion using profiles of top ranked experts and on document priors. We found that these techniques result in small, but noticeable improvements over our baseline method. For expert search, we combine candidate- and document-based models, and also bring in web evidence. We found that the combined models significantly and consistently outperformed our very competitive baseline models.

• Type: Conference
• Year: 2008
• Where: TREC
• Authors: Krisztian Balog, Maarten de Rijke
• Keywords: Competitive Baseline Models, Information Technology, Language Modeling-based Approaches, TREC 2008, Trec 2008 Enterprise