[硕士论文] 垂直搜索引擎的设计与实现(3)

发布时间:2021-06-07

[硕士论文] 垂直搜索引擎的设计与实现

西北工业大学硕士学位论文Abstract

Abstract

Withthepfeval锄ccofthenetworkapplications,theInteracthasbcc0蚰ea

∞wicenetworkprovidingmassinformation,whichincludesvariousinformationresourcesandsitesdistributedall

webuserovertheworld.Thesearchengineisupakindofsearchtoolshelpingtolookinformation.Itcollectsandseeks

information

information

andmassintheInteractwithcertainstrategiesandprovidesretrievalserviceandnavigationOnthebasisofextracting、organizinganddealingwiththeinformation.The

Withcharacteristicsofthegeneralenginemelarge—scaleindexdatabaseretrievalresultdata..thedevelopmentofdisparateinformation,the

ageneralsearchenginecan'tmeetthetopiccustomers.Thecustomersneedparticularsubject-orientedtechnique

toobtainandmethod,which

sometopic.By

emergeatthisisaccurate,all—sidedandupdatedtimelyresourcesaboutthepromotionofthiskindofdemandstheverticalsearchenginebackground.

Thethesisstudiedtherelatedtechniqueofthe

architectureoftheverticalsearchenginebasedsearchonengine,designedthesystemanalyzingthetraditionalsystemstructureofthesearchengine.Inthisarticle,somekeytechniquesinvolvedinthesearchenginesuchasweb

arecrawler,informationextraction,Chineseparticipleandtheretrievingtechniquesstudiedindetail,Bylucubrafingthesekeytechniques,the

authorexpectSomehelptothedevelopmentinthisfield.

Modularthoughtwasadoptedinthesystemdesign.Theverticalsearchengineis

dividedintothreeparts:thecollectsub-system,theindexsub-system

sub system.Each

expediently.andtheretrievalsub—systemisindependenceoppositelyandimplemented

andThe

haveverticalsearchenginehasbeenputintocanUSCandprovedsuccessfullyeffidenflyinpractice.Itasatisfytheneedofthetopiccustomerprimly,SOitwillvastmarketinfuture

Keywords:searchengine,theinformationextraction,thepush—downautomaticmachine,Chineseparticiple,thepagedistance¨

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