Semantic search
SIGGRAPH, SIGIR, SIGMETRICS, SIGMIS CPR, SIGMOD, SIGSPATIAL, SIP, SIROCCO, SIS, SITE, SLE, SLT, SMC, SMS, SMWCon, SOCASE, SODA, SOFSEM, SOFTCOM, SOSP, SOUPS, SPAA, SPICIS, SPIRE, SPLASH, SPLC, SPM, SPPRA, SRDS, SSBSE, SSDBM, SSPR, SSR, SSTD, STACS, STC, STEP, STOC, SWDC, SWIB, SafeComp, Science in Society Conference, SePublica, SecureComm, SemEval, SemWebEval, SemWiki, SenSys, SimAUD, Smart Graphics