Zhenxing Qin Li Liu Shichao Zhang Mining Term Association Rules for Heuristic Query Construction. 145-154 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3056&spage=145 2004 conf/pakdd/2004 PAKDD db/conf/pakdd/pakdd2004.html#QinLZ04