<XML><RECORDS><RECORD><REFERENCE_TYPE>3</REFERENCE_TYPE><REFNUM>8667</REFNUM><AUTHORS><AUTHOR>Macdonald,C.</AUTHOR><AUTHOR>Ounis,I.</AUTHOR></AUTHORS><YEAR>2007</YEAR><TITLE>Expertise Drift and Query Expansion in Expert Search</TITLE><PLACE_PUBLISHED>In Proceedings of the ACM 16th Conference on Information and Knowledge Management (CIKM 2007), Lisboa, Portugal, 2007</PLACE_PUBLISHED><PUBLISHER>ACM Press</PUBLISHER><LABEL>Macdonald:2007:8667</LABEL><KEYWORDS><KEYWORD>Expert finding; query expansion; voting model</KEYWORD></KEYWORDS</RECORD></RECORDS></XML>