db/conf/cikm/LeeC99.html Dongwon Lee Wesley W. Chu Semantic Caching via Query Matching for Web Sources. 77-85 CIKM1999/P077.pdf 1999 conf/cikm/99 CIKM http://doi.acm.org/10.1145/319950.319960 db/conf/cikm/cikm99.html#LeeC99