1I111/111/1福111111/111111111111111Selectioity Estimation11forExclusive QueryTranslationin DeepWeb Data Integration11111111/1111111/1111111111111-1Fangjiao Jiang111RenminUniversityofChinaJoint work with Weiyi Meng &Xiaofeng Meng1111111I11111
Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration Fangjiao Jiang Renmin University of China Joint work with Weiyi Meng & Xiaofeng Meng
SelectivityEstimationforExclusiveQueryTranslationinDeepWebDataIntegration(DAS)The previous Web:狐1things are just on the surfacet1Alon Y. Halevy11AffiliateProfessor,ComputerScienceandEngineering1(was1Luis GravanoFAssociate ProfessorCurrenComputer Science DepartmentOffice:SchapiroCEPSR706WelcomeBioResearsColumbia UniversityPhone:+1-212-939-70641214 Amsterdam AvenueFax:+1-212-666-0140New York,NY 10027gravano@cs.columbia.eduI am currently at Gooumbia.edu/gravandlove God's senseofhumorOne in a million shotAsmile from God!databases, desktopSend God's smile to someone youwant to bless today,I just did.Best wishes for you. Good luck!One in a million shotAsmilefrom God!拉SendGod'ssmileto someoneyouwant to bless today,I just did,1Read more...11111-11
The previous Web: things are just on the surface Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration (DASFAA2009)
SelectivityEstimationforExclusiveQueryTranslationinDeepWebDataIntegration(DASaThe current Web: Ceting dgA great deal of information is hidden behind query formsC34MATCHESFORAudl,A4.PlIce:S2000-$20000.UsedOrancocregisterSearch:HotnePogeSportsErtaneinmemACars Finda CarFinda Dealer Cycle/BoauRySearchforYourNextVehiclefromUsed CarsCycle/BoatNewCarsSearchfor usedvenicles from OrangeCountyeardealerserspartylistingsAudir(192)ModetA4C136$20.000V$2:000-Certiried Pre-Owned OnlySearchsDeep = not accessible through search engines
The current Web: Getting “deeper” ◼ A great deal of information is hidden behind query forms ◼ Deep = not accessible through search engines Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration (DASFAA2009)
SelectivityEstimationforExclusiveQueryTranslationinDeepWebDataIntegration(DAS景Whyisitimportant?cars.comBORDERSBun福ne稻More than 10 million distinct forms1
Why is it important? ◼ More than 10 million distinct forms Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration (DASFAA2009)
SelectivityEstimationforExclusiveQueryTranslationinDeepWebDataIntegration(DASWhy is it important?1Tnanksgiving Lertovers1Turkey pot pie,turkey soup, &turkeyenchiladasaredeliciouswaystoeatupthatbird,Tryourideasfortherestof your meal, too!tAoChristmas CookiesWarmupyour ovenEOHOLEALCONSBO)Perfect Fried ChickenapronsIThe Christmcotohasbegun.Here are a few tips for getting juicyfrieLARYISeverybmeGETMORERECIPESPan-Fried Chicken Breast RecipesROHEEALCUNXAPUT招Get the latest and gnPan-frying is aquickanddeliciousway.treviews delivered direcipes.here.JARYIt'sfree!SIGNUPFORNEWSLE1-恋Stuffed and Baked Chicken BreastsFindrecipesforstuffedandbakedchick福1Up to 5,000 billionsdynamic result pages1
Why is it important? ◼ Up to 5,000 billions dynamic result pages Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration (DASFAA2009)