基于多維云模型的關(guān)系數(shù)據(jù)庫數(shù)字水印技術(shù)研究與應(yīng)用.pdf

1、V771171後旦大學(xué)碩士學(xué)位論文學(xué)校代碼：10246學(xué)號：022021201基于多維云模型的關(guān)系數(shù)據(jù)庫數(shù)字水印技術(shù)研究與應(yīng)用院系：專業(yè)：姓名：指導(dǎo)教師：完成日期：信息科學(xué)與工程學(xué)院計算機(jī)應(yīng)用技術(shù)譚克元曹文君教授2005年5月22日復(fù)旦大學(xué)碩士論文基于多維云模型的關(guān)系數(shù)據(jù)庫數(shù)字水印技術(shù)研究與實現(xiàn)AbstractDigitalwatermarkingtechniqueisamethodofcopyrightprotection，which

2、emergedin1990’sItmakesuseoftheredundancydatatoembedcopyrightinformationintothedigitalproduction，forprotectingthedigitalproductioncopyrightandintegralityWiththedevelopmentofInternettechnology，itbecomesthecommondemandtoper

3、mituserstoqueryandaccessthedatabasefromtheremoteclientButtheprovidersofdatabaseworryaboutthedatawasfilchedandillegallycopied，thecopyrightofrelationaldatacan’tbeprotectedefficientlyTherearefewpeopleinterestedonwatermarkin

4、gtechniqueforrelationaldatabasebecauseofthespecialtvofrelationaldatabasetodayAndthereisn’twatermarkingtechniquethatcandetectandextractwatermarkinginformationwithouttheorigihaldatabasefromthewatermarkedrelationaldatabaseF

5、orthisreason，thewatermarkingtechniquesforrefationaldatabasebasedonmultidimensionalcloudmodelcanembedsomesignificatirewatermarkinformationintelationaldigitalvalue，detectandextracttheembeddedwatermarkinformationTheresearch

6、isbasedoncloudtheories，whichareputforwardbyacademicianLideyiThedigitalwatermarktechniquesbaseonmultidimensionalcloudmodelcarlembedsomesignificatirewatermarkinformationProvedbytheresultofexperiments，thedigitalwatermarktec

7、hniquesbasedonmultidimensionalcloudmodelcanprotectthedatabasecopyrightThereprovidesoneblinddetectingextractingwatermarkarithmeticandaframeworkforwatermark’sinserting，extracting，anddetectingandefficientlyprotectdatabaseKe