<XML><RECORDS><RECORD><REFERENCE_TYPE>0</REFERENCE_TYPE><REFNUM>8319</REFNUM><AUTHORS><AUTHOR>He,B.</AUTHOR><AUTHOR>Ounis,I.</AUTHOR></AUTHORS><YEAR>2007</YEAR><TITLE>Combining fields for query expansion and adaptive query expansion</TITLE><PLACE_PUBLISHED>Information Processing & Management, 2007.</PLACE_PUBLISHED><PUBLISHER>Elsevier Science</PUBLISHER><LABEL>He:2007:8319</LABEL><KEYWORDS><KEYWORD>Query expansion; Field-based retrieval; Adaptive query expansion; Terrier</KEYWORD></KEYWORDS</RECORD></RECORDS></XML>