基于互信息網(wǎng)絡(luò)模型的冰雹回波時(shí)間序列知識(shí)發(fā)現(xiàn).pdf

1、天津大學(xué)碩士學(xué)位論文基于互信息網(wǎng)絡(luò)模型的冰雹回波時(shí)間序列知識(shí)發(fā)現(xiàn)姓名：王蕾申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：模式識(shí)別與智能系統(tǒng)指導(dǎo)教師：路志英20080501ABSTRACTHailstoneisamaindisasterintheMeteorologicalarea，whichthreatstolifeandpropertyBecausethehailechoesarisessuddenly，moVesfastanddissipatesve巧q

2、uickly，itisdimculttoforecastSotheresearchonhailstoneechoautomaticforecastsystemcaneffectiVelyreducethedamageofthehailstoneThispaperin仃IDducedtheapproachtoknowledgediscove巧intimeseriesdatabase(TSDB)，whichbasedonMutualInfo

3、rnlationofShannon’sInfomationTheo巧andtheradarechoesTSDBTheresultsofImowIedgediscove叫inTSDBcanbeusedtopredicttimeseriesbehaViorinthefuture，andwaspresentedtotheforecastofhailechoThemainworkofthepaperincluded：(1)’111eradare

4、choesTSDBwasconst]ructedAccordingt0digitalimageprocessingtechniques，thefeaturesofcolor，textureandshapewereextractedandcalcuJatedf而mtheradarimage，andthenthefeatureswerestorediflthegenerateda脅baseOndiscussingandanalyzingth

5、edi行：rentconstructionofSpecialDatabase，timeseriesdatabasef而mgeneraldatabasewasremodeled，whichprovidesthedataresourcetotheresearchofthehaiJechof0recast(2)TheconstmctionofMINMwasdetailed，whichisusedtodiscoverknowledgeUsing

6、theconceptofInfonnationTheoUandMutualInfomlation，calculatedthedi琢：rencebet、Ⅳeenprioriandpostentropytodetecttheassociatingdegreebetweeninputattributesandta唱etattributes，whichcontrolsthenetworkconngurationThene觚orkcanbeuse

7、dtodeductassociatingmlesofprocessofhailstone(3)WiththeoptimizationofruleswhichwereobtainedfIrom(1atamining，an印proachofautomatichailechoforecastwaSproposedandimpletTlentedTheoreticalanalysisandexperimentshowedthatthismeth

8、odwasabletoforecastthehailechoontheradarimageefrectiVelyInconclusion，theresearchofthispapercanbeappliedtothepracticaIsituations，andhasmadegreatcontributiontothehailstoneautomaticforecastsystemKEYWORDS：Timeseriesdatabase，