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朱宗元 曾晓东(,630013):1996723:,,1941,,:,,1958,,,,DevelopmentTrendsofInformationDatabasesintheDigitizedInformationServiceZhuZongyuanandZengXiaodong(ChongqingBranch,InstituteofS&TInformationofChina,Chongqing630013)AbstractThedigitizedinformation(i.e.electronicinformation)hasbecameanimportantinfor-mationsource.Itshighspeeddevelopmentgaveseverechallengestothedigitizedinformationser-vice.Inthispaper,wediscussseveralproblemsfacedbytheinformationdatabaseanditsdevelop-menttrends,includinginformationdatabaseandinformationnetwork,datamodels,datastorage,querypolicy,andsupportsforservice,whenthetraditionalinformationservicetransferstothedig-itizedinformationservice.Keyworddigitizedinformation,informationservice,informationnetwork,informationdatabase1995Internet,InternetInternet150,7,1500,30004000,15%20%,1998,1Internet,Internet,60%(CD-ROM),(on-line)Internet,,16119972Vol.16,1February,1997,,,,,1,,,,,,,,,,,,,:,(NCFC),,Internet,Internet,,,/(Clint/Server),Internet,/(PC)X.25(WAN)Internet,PC,(WAN)(LAN),,,,,WANLAN,,(DataWarehouse),,,,,(),2607057180,,,,80,,,,80,(Object-OrientedDB),,(),,,,(DORDB),,:,;,;,,;!,,/,,,/(LAN),,,/,,/PC,,Java,WebInternet,Java,,,,,31998,(EOS),(EOSDIS)1/3PB(1015),,PBEOSDIS,,(),,,,,,,5816,,,,,:,,,;,:JPEG,HPEG,H.261490,,,,,,:,,;,,,,,,,,+,:(1)(2),,,,(3),,,,,,,,,,,,,,:;;,,,,::,,:,,,,:!:,,,,591,:,,,,(QueryByImageContentQBIC),,,QBIC,,,,NogoyaSketchDatabase,X,,,5,,,,5.1,,,(),,,,,,,,,,,,,,(),,,,,5.2,,,,,(),,,,,,,,,,,6016,(DataMining),6,,,,,[1]AviSilberschatz,MakeStonebraker,JeffUllman:DatabaseResearch:AchievementsandOpportunitiesintothe21stCentury,ReportofaNSFWorkshopontheFutureofDatabaseSystemsResearch,1995,5,26-27[2]Gray[1995]:[3]JacobSlorim&MichaelBauor:NewWaysofLearingThroughtheGlobalInformationInfrastucture,Intel.Conf.OpenDistributionProcessingProc.95,p20-27[4]:,,1996,6,3(责任编辑 孙月湘)欢 迎 订 阅 《情报学报》是中国科学技术情报学会、中国科学技术信息研究所主办的国家一级学术刊物。我国情报科学领域的重要核心期刊。中国科技论文统计与分析用期刊。本刊贯彻理论研究和应用研究并重的办刊方针,主要刊载情报科学领域的学术论文、研究报告、学术讨论和综述评论等。同时也发表有关的进展性、动态性和消息性文章。:1.;;;2.21(),3.:;;;::15:100038:(010)68515544-2580:(010)68514025:::CN11-2257/G3,:82-153:,399:BM4134:,16,80:19978.00,48.00(,)611