海量數(shù)據(jù)組織中的索引機(jī)制研究與實(shí)現(xiàn).pdf

1、華中科技大學(xué)碩士學(xué)位論文海量數(shù)據(jù)組織中的索引機(jī)制研究與實(shí)現(xiàn)姓名：程彬申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：計(jì)算機(jī)系統(tǒng)結(jié)構(gòu)指導(dǎo)教師：曹強(qiáng)20080604II華中科技大學(xué)碩士學(xué)位論文AbstractTheindexmechanismofexistingdataganizationsystemsinmostlyisbasedonthegeneralindexoftraditionaldataganization，therearemanyproblems，s

2、uchastoolargescalableindexdata，toolongtimefindexing，singletypesofindexdataetc。Thesequestionshaveresultedinmassivedataretrievalrateinthewholeinvestigationsearchfprospectiveratestimehardlytomeetcustomerneeds.Toaddressthese

3、issuesimprovetheutilizationofinfmationDesigninganewindexmechanismwhichcanimproveperfmancequalityofdataretrievalfthemassiveunstructureddatabecomesamajresearchissues。Firstlyamassivedataganizationsystemisdesigned.Thesystemm

4、eetstheneedsofthemassiveinfmationganizationmanagementwhichareautomationunifiedinterfacepatternextractioncognitionextractionsemanticintegration.Thesystemtakesthefourkeytechnicalpointswhichareinfmationpretreatmenttechnolog

5、yinfmationstagetechnologywhichcanbeextendedreganizationofinfmationtechnologyinfmationretrievaltechnologyaredetermined.Inthisplatfmthewkthatisrelatedtomassdataprocessingcanbetoresearchsuchasinfmationindexing.Secondlybased

6、onthemassivedataganizationsystemthedataindexingmechanismisanalyzedstudiedahybridindexingmechanismispresentedwithitsdetailedalgithm.Thedatamodelofindexinfmationofthehybridindexmechanismisinfmationmatrixmodel.Themodeltakes

7、anumberofmetadatatorepresentinfmationentities.Thisinfmationdatamodelreducesthedatascaleatthesametimeenhancestherepresentationoftheinternalacteristicsofinfmation.Theindexdataofthehybridindexmechanismismetadataofinfmation.

8、Theindexbasedonmetadatacanprovidemeprecisemesemanticindexthantheindexbasedoncontent.Theindexstagemodelsofthehybridindexmechanismhavethreemodels：treemodelhashindexmodelinvertedfilemodel.TreeindexmodelistoTheresearchissupp