info:oai:generic.eprints.org:179info:ofi/fmt:xml:xsd:bookYanJunYan, Jun <http://www2009.eprints.org/view/author/Yan=3AJun=3A=3A.html>LiuNingLiu, Ning <http://www2009.eprints.org/view/author/Liu=3ANing=3A=3A.html>Qing ChangElaineQing Chang, Elaine <http://www2009.eprints.org/view/author/Qing_Chang=3AElaine=3A=3A.html>JiLeiJi, Lei <http://www2009.eprints.org/view/author/Ji=3ALei=3A=3A.html>ChenZhengChen, Zheng <http://www2009.eprints.org/view/author/Chen=3AZheng=3A=3A.html>April 2009Search Result Re-ranking Based on Gap between Search Queries and Social Tagsproceeding