Databases in Networked Information Systems

Datamanagementsystemsforlargeapplicationsseekinfrastructuralsupport fromdatabasesystemsanddistributedcomputingsystems. Thesesystems- provewiththechangingrequirementsofapplications. Newresearche?ortsare beingmadetosupportelectroniccommerce(EC)applications,andvoluminous datahandlingapplications. Atthesametime,supporttechniquesarebeingst- iedindataminingandknowledgediscovery,object-relationaldatabasemana- mentsystems,andmobilecomputingsystems. Theinternationalworkshopon DatabasesinNetworkedInformationSystems(DNIS)2000hasbeenorganized toemphasizetheresearchactivityonsupportsystems. DNIS2000isbeingheldon4-6December2000attheUniversityofAizuin Japan. Theworkshopprogramincludesresearchcontributionsandinvitedc- tributions. Aviewofresearchactivityinevolvingdatamanagementsystemsand relatedresearchissueshasbeenprovidedbythesessiononthistopic. Theinvited contributionshavebeencontributedbyDr. QimingChen,Dr. UmeshwarDayal, andDr. MeichunHsu,andbyMasaruKitsuregawa,TakahikoShintani,Takeshi Yoshizawa,andIkoPramudiono. Theworkshopsessionondatabasesystems- cludescontributedpapersbyDr. JayantR. HaritsaandbyProfessorDivyakant AgrawalandDr. AmrElAbbadi. Thesessiononnetworkedinformationsystems includestheinvitedcontributionbyProfessorKrithiRamamritham,Pavan- olasee,AmolKatkar,AnkurPanchbudhe,andPrashantShenoy. Iwouldliketothankthemembersoftheprogramcommitteefortheirs- portandallauthorswhoconsideredDNIS2000inmakingresearchcontributions. Thesponsoringorganizationsandtheorganizingcommitteedeservepraise forthesupporttheyprovided. Anumberofindividualshavecontributedtothe successoftheworkshop. IthankProfessorP. C. P. Bhatt,ProfessorJ. Biskup, Dr. CarlW. Vilbrand,andProfessorM. Kitsuregawa,forprovidingcontinuous supportandencouragement. IhavereceivedinvaluablesupportfromtheUniversityofAizu. Professor ShoichiNoguchi,President,providedencouragementandtookinterestinthe formationoftheplan. IthankProfessorShunjiMori,HeadofDepartmentof ComputerSoftware,formakingthesupportavailable. Iexpressmygratitudeto themembersandchairmanoftheInternationalA?airsCommitteeforsuppo- ingtheworkshopproposal. Ialsothankallmycolleaguesattheuniversityfor theircooperationandsupport. September2000 SubhashBhalla VI Organization Organization DNIS2000internationalworkshopisorganizedbytheDatabaseSystemsLa- ratory,UniversityofAizu,Aizu-WakamatsuCity,Fukushima,Japan. ExecutiveCommittee ProgramChair: S. Bhalla,UniversityofAizu,Japan OrganizingChair: QunJin,UniversityofAizu,Japan ExecutiveChair: N. Bianchi-Berthouze,Universityof Aizu,Japan ProgramCommittee D. Agrawal,UniversityofCalifornia,USA F. Andres,NationalCenterforScienceInformationSystems,Japan A. Basu,VanderbiltUniversity,USA S. Bhalla,UniversityofAizu,Japan P. C. P. Bhatt,KochiTechnicalUniversity,Japan J. Biskup,UniversityofDortmund,Germany U. Dayal,Hewlett-PackardLaboratories,USA S. Grumbach,INRIA,France O. Hammami,UniversityofAizu,Japan J. R. Haritsa,IndianInstituteofScience,India S. Jajodia,GeorgeMasonUniversity,USA Q. Jin,UniversityofAizu,Japan M. Kitsuregawa,UniversityofTokyo,Japan A. Kumar,UniversityofColorado,USA J. Li,UniversityofTsukuba,Japan S. K. Madria,PurdueUniversity,USA G. Mans?eld,TohokuUniversity,Japan P. K. Reddy,UniversityofTokyo,Japan M. V. Sreenivas,SylantroSystems,USA N. Terashima,WasedaUniversity,Japan AdditionalReviewers LawrenceMutenda,InstituteofIndustrialSciences,UniversityofTokyo,Japan TadashiOhmori,UniversityofElectro-Communications,Chofu,Japan SponsoringInstitution InternationalA?airsCommittee,UniversityofAizu, Aizu-WakamatsuCity,FukushimaP. O. 965-8580,Japan TableofContents DataManagementSystems OLAP-BasedDataMiningforBusinessIntelligenceApplications inTelecommunicationsandE-commerce...1 QimingChen,UmeshwarDayal,MeichunHsu WebLogMiningandParallelSQLBasedExecution...20 MasaruKitsuregawa,TakahikoShintani,TakeshiYoshizawa, IkoPramudiono DataProviders-ALanguageExperiment...33 JohnL. Pfaltz JAVAWrappersforAutomatedInteroperability...45 NgomCheng,ValdisBerzins,Luqi,SwapanBhattacharya IssuesinSecuringGISData....