基于Lucene的面向商业应用的搜索引擎研究与实现

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1、电子科技大学硕士学位论文基于Lucene的面向商业应用的搜索引擎研究与实现姓名：潘亭沥申请学位级别：硕士专业：计算机软件与理论指导教师：章毅20070422ABSTRACTNowadays，theamountoftheinformationOilmeIntemet∞nbeoverwhelming．Atthesametime，theneedtoquicklylocateinformationintheseaofdataisn’tlimitedtotheInternetrealm--desktopcomputerscaIIstoreinc

2、re勰ingiymoredata．Withthisabundanceofinformation,andwithtimebeingoneofthemostpreciouscommoditiesformostpeople，Weneedtobeabletomakeflexible，freeform,instantquerieswhichcanquicklyCutacrossrigidcategoryboundariesandfindexactlywhatWe’reafterwhilerequiringtheleasteffortpossib

3、le．Theemergenceofseveralsearchen西UeSwithvaryingcapabilitiessolvesthisproblem．Thesearchenginetechnologyisbecomingthehotspotofresearchanddevelopmentbothincomputerindustryandacademicworld．Searchengineisallapplicationsoftwaresystemwhichsearchesandcollectsinformationbycertai

4、nstrategy,organizesandprocessestheinformation，andthenprovidestheinformationinquiryservicefortheusers．Thisarticlefirstlyexploresthebackgroundandhistoryofsearchengineandgivesabriefintroductionof4famousChinesesearchengineswhilepointingouttheactualityandtrendofsearchengined

5、evelopment．Then,thebasictheories，relativetechnologiesandprocedureofthesearchengineareexplained．WecouldhavefurtherunderstaningofthedifficultiestorealizeaChinesese缸chenginebyinvestigatingthecoretecimologiesaboutChinesesearchengine．InthewrittenChinese,thereisnodelimiter(su

6、chasthespacesinthewrittenEnglish)betweenthewords，andwordsegmentation，whichmeansbreakingasentenceintowords．isallessentialtaskforChineselanguageprocessing．ThisarticleanalyzesandcomparestheexistingChinesewordsegmentationmethods．AneffectivemethodofChinesewordsegmentationisa

7、chievedbyimprovingtheshortest-pathsalgorithm．Lucene，amatIlre，free,open—sourceprojectimplementedmJavaisintroduced．I．mecneisahighperformance,scalableInformationRetrieval(ⅡQlibrary．wecouldmastertheessentialofLueenebytheanalysisofthesourcecodeandtheexperimentalprogramming．D

8、uetothesimpleyetpowerfulcoreAPI．LuceneisabletobeintegratedⅡintoOUrapplicationrapidly．Finally,thisarticleillust