面向小規(guī)劃xml文檔檢索研究與設(shè)計

1、南開大學(xué)碩士學(xué)位論文面向小規(guī)劃XML文檔檢索研究與設(shè)計姓名：胡靜申請學(xué)位級別：碩士專業(yè)：計算機(jī)科學(xué)與技術(shù)；計算機(jī)系統(tǒng)結(jié)構(gòu)指導(dǎo)教師：袁曉潔201105AbstractAbstractTherapiddevelopmentofWebtechnologymakesthetransmissionandsharingofglobalinformationincreasinghowtouseinformationretrievaltechnolog

2、yinthenetworkresourcesefficientlytofindandusevaluableinformationhasbeenthefocusoftheindustryAlongwiththenetworkandinformationtechnologysdevelopment，thenetworkinformationcontentassumesthegeometricseriestogrowthedataalsosh

3、owsthetypeofdiversificationandhybridizationtherepresentationofinformationanddataexchangestandardsaregettinghigherandhigherXMLasaselfdescribingsemi—structuredandextensiblemarkuplanguage，whichimplementsthecontentstructurea

4、ndperformanceofthethree’Sseparations，moreandmoredatastartusingXMLfordatadescriptionstorageandexchange，hasgraduallyreplacedHTMLasWebdatarepresentationstorageandexchangestandardsInthiscaseinformationretrievalforXMLinformat

5、ionretrievalhasbecomeoneofthehotareasofresearchForthevastamountsofXMLdatainthenetworkdifferentusersondifferentoccasionsrequiredifferentsearchtechniquesCurrentlythesearchforlargeXMLdocuments，usuallyinXMLelementretrievalun

6、itretBrnsonlydocumentsthatmeettheconditionsforfragments，thismethodmayincreasetheretrievalprecisionbutjudgesconformstotheretrievalconditionpiecegranularitytobeveryactuallydifficultAsforthemassiveandsmallscaleXMLdocuments，

7、thedocumentsitselfarequiteshort，ifonlyreturnstothedocumentstheindividualpiece，willcreateslightlyprovidestheinformationcontentnotenoughevenincomplete，cannotsatisfytheuserrequestTherefore，thereferenceWebsearchtheentiredocu

8、mentforXML—retrievalmethodstoretrievetheresearchunitsisofgreatsignificanceThisarticleinpredecessorsworkfoundationinviewoftheXMLsemistructuredcharacteristic，hasstudiedtheexistingtechnologyandthemethodfromretrievaltechniqu