1、山東大學碩士學位論文SemanticTree—時態(tài)XML索引方案姓名：鄧利申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：王新軍20090405山東大學碩士學位論文ABSTRACTTheXML，fullnameisExtensibleMarkupLanguage謝t11theadvantagesofsimplicity，scalability，interoperability，andstrongopeningcharacteristi

2、cs，isfastbecomingstandardsfordataexchangeandtransmissionformathavingnothingtodo、歷也thetechniquesInviewofthewiderangeofapplicationsinmanyareasmanyoftheXMLresearchesareontheforefrontandhottopicsForexample，inthefieldofdataba

3、se，inasensetheuseofXMLasadatabasecandenotenesteddatanaturaJlyandhavestrongerexpressionthantherelationaldatabaseHowevertheXMLindexeshavealotofimperfectplaces，toquerytheXMLdocumentsdirectlythantherelationaldatabaseismuchfa

4、rfromuponefficiencyAcademicresearchontheXMLindexhasbeenalongtime，eventhoughtherearesomesuccesses，alotofplacesneedtoimproveInordertodealwiththetenseinformationwhichplayanimportantroleinecornlTlerceandegovernmentincreasing

5、areas，thetenseXMLgenerates，andbecomesanemergingresearchbranchofXMLtechnologyCompared、磯mthetenserelationaldatabase，thetenseXMLhasthedatamodelwhichismoreintuitivetoexpresstemporalinformationOtherwise，themainapplicationofXM

6、LisdatastorageincurrentToimproveinquiryefficiency011thetemporalXMLdocuments，thetraditionalXMLindexingisnotveryeffective，itCanbesaidthatthestatestilllackanumberofXML—specificindexingtechnologies，andresearchesinthisareaisc

7、urrentlyblankInthispaper，thedatamodeloftemporalXMLisstudiedbasedonwhichtheindexingmodeliscreatedThroughthecreationofindexaquerybasedontimeisoptimizedTheXMLmodelandtemporalXMLmodelareintroducedinthispaperfirstly；followedb