谢莉考试-图书馆理论与实践

《谢莉考试-图书馆理论与实践》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、ABitHistory•Theterm术语digitallibrarywasfirstmadepopularbytheNSF-DARPA-NASADigitalLibrariesInitiative(首创的)in1993.•Computer-assisted电脑辅助searchofinformationstartedinthe1960swiththeadoptionofdatabasemanagementsystemsandapplications•数据库系统的采用•ThefirstWebsearcheng

2、inewasAliweb，whichappearedin1993andstillrunstoday•Firstgenerationsearchengines(1995一1997)usedalmostexclusively专有、唯一onpagedatasuchastextandformatting格式化informationtocomputeandranktheanswerset集合.•Secondgenerationsearchengines(since1998)likeGoogleuseoffpage，W

3、eb-relateddata，suchaslinkanalysis，anchor-texts固定，andclick-throughdata.点击数据•Thethirdgenerationofsearchengines(since2003)trytoblend泥合datafrommultiple，多样性heterogeneous多项，多种sources，tryingtoanswer“theneedbehindthequery，’疑问•DLDreamThedreamofdigitallibraries:ever

4、ypersonintheworldwillhaveinstant直接的accesstotheinformationthathe/sheneedsindigitalformwithminimum少景的effortandcosts.ASimpleComparison比较•Fromatraditionallibrarian’spointofview,digitallibrariespresentatransformative变化的、宥改革能力的modelofalarge-scale大规模，user-centric

5、用户为中心organizationthatismovingtowardsanintegrated樂成的formwithvariouscomponents组件.•However，themainpurposeofdigitallibrariesremainsconsistent组合withthatoftraditionallibrariesinthat所以thepurposeofdigitallibrariesistoorganize，组织distribute分布，andpreserveinformationr

6、esourcesjustasitisfortraditionallibraries.DLDefinition•Digitallibrarieshavebeendefineddifferentlybyresearchersandpractitioners实践者.Twomajorcategoriesofdefinitionsareavailable，onefocusingontheaccessandretrieval检索、恢iiofdigitalcontent目录、lAl界andtheotherfocusing

7、onthecollection，organizationandserviceaspectsofdigitallibraries.Definitionsthatfallintothefirstcategorycomemainlyfromresearcherswhoarecomputerscientistsandengineers，whilethoseinthesecondcategorycomemainlyfromlibraryandinformationprofessionals.•Ahybrid'混合li

8、braryhasbeendefinedasalibrarywheredigitalandprintedinformationresourcesco-existandarebroughttogetherinanintegrated绽合的informationserviceaccessiblelocallyaswellasremotely远程的(HyLife，2002a).1、IEEE电气与电子工程师协会CAIAWo