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基于Lucene的产品比价搜索系统的研究与设计.pdf

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上海师范大学硕:‘b学位论文摘要AbstractInrecentyears,,withthemassivegrowthofimformation,,thesearchtechnologyforthespecificdomain,ethefocusofresearchathomeandabroad,,inturn,———一‘‘work",andthedigitalsub-columnofsina,,whentheuserinputthewrongcharacterinthesesites,,howtounderstandtheuser’’Averticalsearchenginesystemwillbestudyedandimplemted—-···-:(1)Verticalsearchenginecharacteristicsandkeytechnologieswillbeanalyzedinordertoclearapapertopic;(2)parisonsearchsystemindetailandhowtoimplementit,analyzedthewebcrawler,pageparsingtechnique,andtheAPIofLucenewhichrealizingthefunctionofindexandsearchfunction.(3)ThispaperstudiedthedifficultareaintheChinesesearchengine,monlyusedmethodsofChinesewordsegmentationalgorithm,oneofwhichbasedonthemaximumpositivematchandanotherbasedonthestatistics,,,uracyimproved.(4)Thispaperstudiedthespellcheckingtechnology,monSubsequence(LCS),orrectionandreturnthewhattheuserwantwhenuserinputthewrongtypos。Thismethodmakethesystemcancorrectlyunderstandtheintentoftheuser’Sinput,

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