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簡介:蘭州大學(xué)碩士學(xué)位論文結(jié)合DFT計算和統(tǒng)計學(xué)校正方法用于準(zhǔn)確計算化合物的物理化學(xué)性質(zhì)姓名滕慶楓申請學(xué)位級別碩士專業(yè)化學(xué)化學(xué)信息學(xué)指導(dǎo)教師姚小軍20100501蘭州大學(xué)2010碩士學(xué)位論文為029EV,數(shù)據(jù)的準(zhǔn)確性有了大幅度的提高。說明LSSVM對離子化的能校正有著顯著的效果,可以推廣應(yīng)用到其他類型有機(jī)化合物的電離能的預(yù)測。關(guān)鍵詞量子化學(xué),密度泛函法,定量結(jié)構(gòu)一活性/性質(zhì)關(guān)系,生成焓,鍵的離解能,離子化能Ⅱ
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 86
大小: 3.38(MB)
子文件數(shù):
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簡介:河北大學(xué)碩士學(xué)位論文集值概率空間上基于模糊隨機(jī)集的統(tǒng)計學(xué)習(xí)理論基礎(chǔ)姓名張新愛申請學(xué)位級別碩士專業(yè)基礎(chǔ)數(shù)學(xué)指導(dǎo)教師哈明虎田大增20080501ABSTRACTABSTRACTS伽STICALLE鋤INGT11EO巧SLTISANEWT11EO巧THATDEVELOPEDFORSMALLDATASANLPLESITHALSBECOMEANOVELANDIMPORTAMFIELDOFMACMNELEANLIR喀ALONGWITHOTHERCONCEPTSANDARCHITECTURESSUCHASNEURALNE佩,0RKSHOWEVER,THETLLEO巧W鴿B2LSEDONPROBABIL塒SPACE,ITHARDLYHALLDLESSTATISTICALLE撒LINGPROBLEMSFORS鋤PLESTHATINVOLVE缸冽RALLDOMSETSONSETVALUEDPROBABILITYSPACEINMISPAPER,WEDISCUSSSOMEPROBLEMSOFSLL’BASEDON丘JZZ,MDOMSETSONSETVALUEDPROBABILI夠SPACEFIRSTLY’、ⅣEGIVEMEDEFIILITIONOFMEDISTRIBUTED如NCTIONANDTLLEEXPECTATIONOF缸掣RANDOMSETSANDPROVETLLES仃ONGLAWOFLARGEN啪BERSONSETVAIUEDPROBABIII夠SPACESECONDLY,、VEPUTF10刪THECONCEPTOF如ZZYRISKFHNCTIONAL,F(xiàn)UZ巧EMPIRIC猷RISK矗MCTIOILAL觚DTLIEP血LCIPLEOF矗JZZYENLPIRICALRISKMIILIMIZATIONFINALLYWCFO鋤ULATEA11DPR0VETHEKEYTHEOREMANDBOUZLDS0NTHERATEOFUNIF0MCONVE略ENCEOFLEARLLINGT11EORRBASEDONF娩巧RANDOMSETSONSETVALUEDPROBABILITYSPACE,WBJCHGENERALIZESTHESLL’BASEDONMDOMSAMPLESONPROBABILITYSPACETOTLLES【TBASEDON如Z巧RAILDOMSETSSAMPLESONSETVALUEDPROBABILIT,SPACEANDBECOMESACOMERSTONEOFTHETHEORETICALFUND鋤ENTALSF0RSTUDYINGLATERKEYWORDSSETVALUEDPROBABILI夠;FUZ巧RALLDOMSETS;T11EPRINCIPLEOF如ZZYEMPIRICALRISKMINIMI刎ION;THEKEYMEOREM;BOULLDSONTHERATEOF吼IFOMCONVE昭ENCEII
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上傳時間:2024-03-06
頁數(shù): 28
大小: 1.01(MB)
子文件數(shù):
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簡介:首都師范大學(xué)碩士學(xué)位論文初中學(xué)生語文偏誤的統(tǒng)計學(xué)調(diào)查與研究姓名孫學(xué)明申請學(xué)位級別碩士專業(yè)教育指導(dǎo)教師汪大昌200403013434THESTATISTICSINVESTIGATIONSTUDYONJUNIDLESCHOOLSTUDENTSCHINESEMISTAKEKEYWDSCHINESEMISTAKERELEVANTLANGUAGEKNOWLEDGELANGUAGESKILLSTRAININGTHETHESIS’STUDYSCOPEISADIAGNESESTUDYREPTONTEACHINGCHINESESUBJECTTHESUBJECTOFTHERESEARCHISWHETHERTHEREISARELATIONBETWEENTHEMISTAKEINCHINESEEXPRESSIONMADEBYTHEJUNIDLESCHOOLSTUDENTSTHEIRCHINESESTUDYRECDIFTHEREISWHAT’STHEDEGREEOFCLOSERELATIONMISTAKEINCHINESEHAVESOMETHINGTODOWITHTHOSEFACTSSTUDYTHISASPECTISVERYSELDOMINCHINAONLYSEVERALLIMITEDPASSAGEWERERETRIEVEDTHEYAREALLABOUTANALYSINGTHEREASONMAKINGTHEFAULTYWDSBYSENIDLESCHOOLSTUDENTSTHESTUDYHAVETWOASSUMESONEISTHEREISNOTRELATIONBETWEENTHEMISTAKEINCHINESEEXPRESSIONMADEBYTHEJUNIDLESCHOOLSTUDENTSTHEIRCHINESESTUDYRECDTHEOTHERISTHEREISARELATIONBETWEENTHEMISTAKEINCHINESEEXPRESSIONMADEBYJUNIDLESCHOOLSTUDENTSTHEIRCHINESESTUDYRECDTHEPURPOSETHATTHERESEARCHWILLAPPROACHISWHATEVERWHICHASSUMEWEALLHAVETHECRECTEXACTDATATOIMPROVETHETHESISSAYSFIRSTTHATTHESTUDYADOPTSTATISTICMETHODTHEYTHENISTATISTICTHESTUDENTSWHOAREDIFFERENTTWOSCHOOLSINSHUNYIONTHEMISTAKEINCHINESEEXPRESSIONJUNIFINALEXAMINAIONOFDISTINCTTHEREARETWOSCHOOLSONEISTHECITYPROPERSCHOOLTHEOTHERISARURALAREASCHOOLFROMJUNIONETOTHERESAMPLINGTOTALISTWOHUNDREDSEVENTYEIGHTWHENISTUDYIADOPT_INSTATISTICSISTUDYRELATIONWHICHBETWEENTHEMISTAKEINCHINESEEXPRESSIONCHINESESTUDYRECDIADOPT_ISTUDYTHEMISTAKEINCHINESESTUDENTS’SEXES
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 29
大?。?0.58(MB)
子文件數(shù):
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簡介:中南大學(xué)碩士學(xué)位論文基于GIS與地統(tǒng)計學(xué)的土壤重金屬元素空間變異分析姓名馮錦霞申請學(xué)位級別碩士專業(yè)攝影測量與遙感指導(dǎo)教師朱建軍詹飛并20070524中南大學(xué)碩士學(xué)位論文ABSTRACTGEOGRAPHICINFORMATIONSYSTEMSGISHASTHEABILITIESOFREGIONALSYNTHESISANDDYNAMICPREDICTIONKRIGINGASAMETHODFORMODELING,THEUNBIASEDANDOPTIMALCHARACTERCANGIVETHEATTRIBUTEDATAOFESTIMATEDPOINTSABESTAPPROXIMATIONTOITSMATHEMATICALEXPECTATIONUSINGGISSPATIALANALYSISANDGEOSTATISTICSTECHNOLOGYANDREFERRINGTOSOILENVIRONMENTQUALITYASSESSMENTTECHNOLOGYANDMETHODOLOGYTHISPAPERANALYZEDTHEACTUALITYANDTENDENCYOFSOILHEAVYMENTALCONTAMINATES,DISCUSSEDTHEREGULARITIESANDREASONOFSPATIALDISTRIBUTIONTHEMAINCONTENTSAREASFOLLOWS1THESTATISTICANALYSISSHOWTHATCU、ZN、CD、CRCONTENTARECOMPARATIVELYNOTHIGH,BUTHGAND舡BYCONTRARIES2USINGREGIONALIZEDVARIABLETHEORETICANDSIMULATIVEEMPIRICALVARIATIONFUNCTION,WECHOOSETHEORETICALFORMULATOANALYSISTHEHEAVYMENTALIN∞ILHGMCCONTAMINATEDBADLYMENTAL1■CRESULTSHOWSTHATTHECONTENTOFHGWASNORMALDISTRIBUTIONAFTERLOGARITHMICTRANSFORMATIONANDHASEVIDENTSPATIALCORRELATION;THECONTENTOFRIGEXISTTHESOUTHEASTANDNORTHWESTDIREETIONTRENDOFSECONDORDERFUNCTIONANDHASEVIDENTSPATIALVARIABILITYALSOANOBVIOUSNUGGETEFFECTISFOUNDINTHECONTENTOFHGANDNUGGETVALUEIS0258,ANDTHESTRUCTURALVARIATIONOFVARIABLEACCOUNTSFORMAJOR11圮CONTENTOFHGDON’THASSIGNIFICANTCHANGELAWSINSMALLSCALE,THESPATIALVARIABILITYWASEFFECTEDMOSTLYBYHUMANFACTORS,SUCHASFERTILIZATION、CROPSANDMANAGEMENTLEVEL,BUTTHEREISSOMEGRADEDDISTRIBUTIONLAWINMIDDLESCALEITINDICATESTHATMANMADEACTIVITIESAFFECTHGCONTENTDEEPLYANDWEAKENTHEFUNCTIONOFSPACEAUTOCORRELATION3WEMADETHESPACEDISTRIBUTIONISOLINEMAPOFRIGBYTHEMAPWEKNOWTHATITSCONTENTONLYBEHAVESCONTINUOUSDISTRIBUTIONLOCALLYINTHEWHOLERESEARCHAREATHEDISTRIBUTIONISRELATIVELYCONTINUOUSANDCALLBEPLOTOUTTOBESEVERALHIGHVALUESOETIONSAPPROXIMATELYWHICHCENTRALIZEINANORTHWESTSOUTHEASTZONALREGION啊托HIGHVALUE剮XTIOUSINCANDDALGAAFFECTEDMAINLYBYINDUSTRYANDTHOSEINAAREAMAINLYBYAGRICULTUREN
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 69
大小: 2.73(MB)
子文件數(shù):
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簡介:三維模型在虛擬手術(shù)、分子生物、文物保護(hù)、計算機(jī)輔助設(shè)計等眾多領(lǐng)域都扮演著非常重要的角色。上個世紀(jì)90年代以來,隨著這些領(lǐng)域的快速發(fā)展以及網(wǎng)絡(luò)三維模型海量數(shù)據(jù)庫的擴(kuò)充和三維物體掃描技術(shù)的成熟,導(dǎo)致了三維模型數(shù)量的急劇增加,人們迫切需要從眾多的三維模型中準(zhǔn)確地找到自己所需要的模型,因此三維模型檢索越來越受到研究人員的重視。本文在對前人關(guān)于三維模型檢索的工作進(jìn)行系統(tǒng)研究的基礎(chǔ)之上,提出了兩種新的基于統(tǒng)計學(xué)的三維模型檢索算法。本文所做的工作如下1總結(jié)與分析了三維模型檢索的研究現(xiàn)狀、相關(guān)技術(shù)。2實現(xiàn)了兩個前人的基于統(tǒng)計學(xué)的三維模型檢索算法OSADA提出的形狀分布的檢索算法和ANKERST提出的對模型切分后生成直方圖的檢索算法。3提出了一種新的基于統(tǒng)計學(xué)的三維模型檢索算法基于相對角度直方圖匹配的檢索算法。該算法僅僅通過統(tǒng)計模型表面點上每一個點與其他所有點之間的角度關(guān)系作為模型的特征量用于模型的檢索,不需要考慮模型三角面片的相關(guān)信息。4由于相對角度直方圖需要考慮模型上每一個點與其他所有點之間的角度關(guān)系,導(dǎo)致了每一個模型所形成的直方圖的維數(shù)較大,所以基于降維的考慮又提出了一種基于聚類分析的檢索算法。該算法大大的降低了模型的特征量維數(shù),從而降低了算法的時間復(fù)雜度,加快了模型檢索的速度。5總結(jié)了算法性能評價的相關(guān)標(biāo)準(zhǔn),并且從實驗結(jié)果與算法性能來看,本文提出的兩種三維模型的檢索算法對于大多數(shù)模型來說在檢索效果與算法性能上都比OSADA提出的形狀分布的檢索算法和ANKERST提出的對模型切分后生成直方圖的檢索算法要好。
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 39
大小: 5.56(MB)
子文件數(shù):
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簡介:中圖分類號G640單位代碼10425學(xué)號S09121191②寸閨石油六學(xué)碩士學(xué)位論文CHINAUNIVERSITYOFPETROLEUMMASTERDEGREETHESIS理工院校研究生主觀幸福感的實證研究以人口統(tǒng)計學(xué)因素和社會支持為統(tǒng)計變量THEEMPIRICALSTUDYONSWBOFPOSTGRADUATE_’_______。WITHDEMOGRAPHICSFACTORSANDSOCIALSUPPORTASTHESTATISTICALVARIABLES學(xué)科專業(yè)高等教育學(xué)研究方向心理健康教育作者姓名董鳳潔指導(dǎo)教師李逸龍研究員二。一一年四月‰童QJ,關(guān)于學(xué)位論文的獨創(chuàng)性聲明本人鄭重聲明所呈交的論文是本人在指導(dǎo)教師指導(dǎo)下獨立進(jìn)行研究工作所取得的成果,論文中有關(guān)資料和數(shù)據(jù)是實事求是的。盡我所知,除文中已經(jīng)加以標(biāo)注和致謝外,本論文不包含其他人已經(jīng)發(fā)表或撰寫的研究成果,也不包含本人或他人為獲得中國石油大學(xué)華東或其它教育機(jī)構(gòu)的學(xué)位或?qū)W歷證書而使用過的材料。與我一同工作的同志對研究所做的任何貢獻(xiàn)均已在論文中作出了明確的說明。若有不實之處,本人愿意承擔(dān)相關(guān)法律責(zé)任。學(xué)位論文作者簽名奎叢垡日期五∥年牛月FF日學(xué)位論文使用授權(quán)書本人完全同意中國石油大學(xué)華東有權(quán)使用本學(xué)位論文包括但不限于其印刷版和電子版,使用方式包括但不限于保留學(xué)位論文,按規(guī)定向國家有關(guān)部門機(jī)構(gòu)送交學(xué)位論文,以學(xué)術(shù)交流為目的贈送和交換學(xué)位論文,允許學(xué)位論文被查閱、借閱和復(fù)印,將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進(jìn)行檢索,采用影印、縮印或其他復(fù)制手段保存學(xué)位論文。保密學(xué)位論文在解密后的使用授權(quán)同上。學(xué)位論文作者簽名童迅姿指導(dǎo)教師簽名ET期必F1年牛月F/日IT期年月日
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 56
大小: 2.16(MB)
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簡介:\主羅ABSTRACT\黜燃WITHTHERAPIDDEVELOPMENTOFINTERNETANDITNETWORKSBUYC2B,ECOMMERCEMODEISGROWINGINDEPTHPEOPLE’SDAILYLIVES,TOBECOMEUSERCENTRICBUSINESSMODELHOWEVERNOMATTERWHATKINDOFBUSINESSMODEL,ANDTRUSTAREANIMPORTANTCONDITIONFORSUCCESSFULTRADINGISTHEBASISOFNETWORKINTEGRITYSYSTEMWASESTABLISHEDPARTIESTOTHETRANSACTIONTHELACKOFTRUSTISBOUNDTOAFFECTTHEENTIRENETWORKMARKETANDHEALTHYDEVELOPMENTOFHOWEVERCHINA’SCREDITRATINGHASBEENTHELACKOFUNIFORMINDUSTRYSTANDARDSBUYINGONLINEFIERCEMARKETBACKDROP,SOMEBUSINESSESINORDERTOWINMOREEYEBALLSANDSALESBEGANTOFINDWAYSTOFUNBUYALLKINDSOFVICIOUSCOMPETITIONINTHEFORMOFFREQUENTEXPOSUREALONGWITHTHEDECLINEOFCONSUMERDISSATISFACTIONFROMENTERPRISESBUY1288THECOLLAPSEOFTHEMEDIAASALANDMARKEVENTTOOPENTHE”CLOSURESANINDUSTRYINTHESHORTTERMUPSANDDOWNS,THEREASONISCLOSELYRELATEDTOTHEIMMATURITYOFITSMARKETDEVELOPMENTTHEREFORE,BUYTHESITEATTHESAMETIMESTRIVETOBECOMEBIGGERANDSTRONGERBUTALSOTOUPHOLDTHEINTEGRITYOFTHECONCEPTOFINNOVATIVEBREAKTHROUGHSINVIEWOFTHIS,1WANTTOBEABLETOPUTFORWARDCONSTRUCTIVEVIEWSOFEMPIRICALRESEARCHFORTHEDEVELOPMENTOFNETWORKBUYINTHISTHESIS,SHANGHAIBUYINTERNETUSERSASTHESTARTINGPOINTRESEARCH,ACCEPTEDBYTHENETWORKBUYTHISMODEOFSHOPPINGTOWHATEXTENTANDHOWTHELEVELOFTRUSTBETWEENCONSUMERSANDONLINERETAILERSINTHEPROCESSOFBUYINGONLINEWHATFACTORSAFFECTTHECONSUMERTRUSTINANDBETWEENBUSINESSESINTHISPAPERBASEDONACCESSTESEARCHINFORMATION,TAKEACOMBINATIONOFINTERVIEWSANDQUESTIONNAIRES,DEMOGRAPHICVARIABLES,AFFECTIVETRUST,COGNITIVETRUSTBEHAVIORALTRUSTDIMENSIONOFTRYINGTOMOREFULLYSUMMARIZEDTHEIMPACTOFBUYINGONLINETRUSTOFTHEIMPACTFACTOLONTHISBASIS,ASSUMETHATTHERELATIONSHIPBETWEENVARIABLESFORCORRELATIONANALYSIS,ANDTHEESTABLISHMENTOFTHEEVALUATIONOFNETWORKBUYCREDITMODELAFTERTHEDATAANALYSISOFSURVEYRESULTS,WEDRAWTHEFOLLOWINGCONCLUSIONSSHANGHAIINTERNETUSERSISAGREATPOTENTIALFORDEVELOPMENTNETWORKSBUYIII
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 64
大?。?2.25(MB)
子文件數(shù):
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簡介:分類號分類號R19密級密級公開公開單位代碼單位代碼1076010760學(xué)號學(xué)號10760MPH0800110760MPH08001新疆醫(yī)科大學(xué)XINJIANGMEDICALUNIVERSITY碩士學(xué)位論文碩士學(xué)位論文THESISOFMASTERDEGREE公共衛(wèi)生公共衛(wèi)生專業(yè)學(xué)位(學(xué)位教育)專業(yè)學(xué)位(學(xué)位教育)論文題目論文題目三種醫(yī)學(xué)期刊統(tǒng)計學(xué)應(yīng)用問題現(xiàn)狀及對策三種醫(yī)學(xué)期刊統(tǒng)計學(xué)應(yīng)用問題現(xiàn)狀及對策研究生研究生張巧蓮張巧蓮指導(dǎo)教師指導(dǎo)教師鄭玉建鄭玉建教授教授專業(yè)專業(yè)學(xué)位領(lǐng)域?qū)W位領(lǐng)域公共衛(wèi)生公共衛(wèi)生研究方向研究方向衛(wèi)生事業(yè)管理衛(wèi)生事業(yè)管理研究起止時間研究起止時間200903201303所在學(xué)院所在學(xué)院公共衛(wèi)生學(xué)院公共衛(wèi)生學(xué)院2013年3月CURRENTSITUATIONPROBLEMSCOUNTERMEASUREOFAPPLICATIONOFSTATISTICSINTHREEMEDICALJOURNALSADISSERTATIONSUBMITTEDTOXINJIANGMEDICALUNIVERSITYINPARTIALFULLFILLMENTOFTHEREQUIREMENTSFTHEDEGREEOFMASTEROFPUBLICHEALTHBYZHANGQIAOLIANPUBLICHEALTHDISSERTATIONSUPERVISPROFZHENGYUJIANMAR2013
下載積分: 5 賞幣
上傳時間:2024-03-06
頁數(shù): 50
大?。?2.73(MB)
子文件數(shù):
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簡介:|』學(xué)校代碼10425I學(xué)號S0401056中國石油大學(xué)碩士研究生學(xué)位論文華東申請工學(xué)碩士學(xué)位常用地質(zhì)統(tǒng)計學(xué)方法軟件開發(fā)及分析學(xué)科專業(yè)培養(yǎng)方向碩士生指導(dǎo)教師礦產(chǎn)普查與勘探含油氣盆地分析閆瑞萍李漢林教授入學(xué)月期2004年9月論文完成日期2007年5月THESOFTWAREDEVELOPMENTANDANALYRSISOFCOMMONGEOSTATISTICSYANRUIPINGMINERALRESOURCEPROSPECTINGANDEXPLORATIONDIRECTEDBYPROFESSORLIHANLINABSTRAETKRIGINGISANIMPORTANTMETHODINTHEPREDICTIONOFRESERVOIRPARAMETERRESPONSESRESERVOIRCHARACTERIZATIONANDISTHEBASISOFESTIMATINGRESERVES,PRODUCTIONPREDICTIONESTIMATINGRECOVERYEFFICIENCYANDEXPLORATIONANDDEVELOPMENTPROJECTTHISRESEARCHMETHODBETIMESALREADYHOTSPOTONTHEBASISOFREADINGLOTSOFDOCUMENTSOFGEOSTAFISTIES,USETHEIDEAOFSOFTWAREENGINEERING,STUDYTHESOFTWAREDESIGNANDDEVELOPMENTOFCOLNLNONGEOSTATISTICS,ANDSTUDYTHETASKS,PROCESS,STRUCTURINGMETHOD,TOOLSOFSOFTWARE,F(xiàn)ORMASERIESOFNECESSARYPICTURESANDDOCUMENTS,ESTABLISHTHEMODELSOFGEOLOGYOFVARIATIONFUNCTIONUNIVERSALGRIGING,INDICATORKRIGINGANDCOMIGINGTHENTESTTHESOFTWAREUSINGTHEREALGEOLOGYDATAVERIFYTHECREDIBILITYOFSORWARETHERESULTINDICATESINDICATORKRIGING’SESTIMATINGEFFECTIVENESSIMPROVESLITTLEWHENDIFFERENCEOFREGIONALIZEDVARIABLEISNOTREMARKABLE,BUTCOKRIGING’SESTIMATINGEFFECTIVENESSISBETTERTHANUNIVERSALKRIGINGANDINDICATORMIGINGUNIVERSALGAIGING,INDICATORKRIGINGANDCOKRIGINGCANREFLECTTHEPHYSICALPROPERTYANDCOKRIGINGSESTIMATINGEFFECTIVENESSISBESTAMONGTHESETHREEMETHODSWHENCORRELATIONOFCHIEFVARIABLEANDIII
下載積分: 5 賞幣
上傳時間:2024-03-05
頁數(shù): 73
大?。?1.2(MB)
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簡介:河北大學(xué)碩士學(xué)位論文可能性空間上統(tǒng)計學(xué)習(xí)理論的關(guān)鍵定理姓名白云超申請學(xué)位級別碩士專業(yè)應(yīng)用數(shù)學(xué)指導(dǎo)教師哈明虎王熙照20040501ABSTRACTIIABSTRACTINTHISPAPERWEWILLFURTHERDISCUSSTHEPROPERTYOFTHECREDIBILITYMEASUREGIVETCHEBYCHEFF’SINEQUALITYALARGENUMBERTHEEMONPOSSIBILITYMEASURESPACESWEWILLGIVESOMENEWCONCEPTSOFEMPIRICALRISKFUNCTIONALTHEEXPECTEDRISKFUNCTIONALTHEEMPIRICALRISKMINIMIZATIONINDUCTIVEPRINCIPLEERMACCDINGTOTHECLASSICALSTATISTICALLEARNINGTHEYATLASTWEWILLGIVEPROVETHEKEYTHEEMOFTHESTATISTICALLEARNINGONTHEBASEOFITKEYWDSCREDIBILITYMEASURETHEEMPIRICALRISKFUNCTIONALTHEEXPECTEDRISKFUNCTIONALEMPIRICALRISKMINIMIZE
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簡介:成都理工大學(xué)碩士學(xué)位論文基于地質(zhì)統(tǒng)計學(xué)的固體礦床儲量估算的研究與實踐姓名劉愛平申請學(xué)位級別碩士專業(yè)應(yīng)用數(shù)學(xué)指導(dǎo)教師郭科20090501成都理工大學(xué)碩士學(xué)位論文IITHERESEARCHPRACTICEOFSOLIDMINERALRESERVESESTIMATIONBASEDONGEOSTATISTICSINTRODUCTIONOFTHEAUTHLIUAIPINGMALEWASBNINAUGUST1982WHOSETUTWASPROFESSGUOKEHEGRADUATEDFROMCHENGDUUNIVERSITYOFTECHNOLOGYINAPPLIEDMATHMAJWASGRANTEDTHEMASTERDEGREEINJUNE2009ABSTRACTINRECENTYEARSWITHGEOSTATISTICSDEEPLYSTUDIEDWIDELYUSEDINCHINAITHASBEENMADEGREATPROGRESSINTHESOLIDMINERALRESERVESESTIMATIONCONDITIONALSIMULATIONNUMERICALANALYSISHASBEENWIDELYUSEDINTHEFIELDOFAGRICULTURALMETEOLOGICALENVIRONMENTALOILGASSOONINTHESOLIDMINERALRESERVESESTIMATIONITHASDEVELOPEDINTOTHEINDUSTRYSTARDFESTIMATINGRESERVESHASALSOPRODUCEDEXCELLENTRESEARCHRESULTSALARGENUMBEROFMATURESOFTWARESINTHISPAPERITFIRSTINTRODUCEDTHECONTENTSOFTHEGEOSTATISTICSITSADVANTAGESTOTRADITIONALMETHODSOFCALCULATINGMINERESERVESCLASSICALPROBABILITYSTATISTICSTHENITINTRODUCEDREGIONALVARIABLESVARIOGRAMTHETHEETICALMODELVARIATIONCURVESTRUCTURALANALYSISDINARYKRIGINGMETHODSOONINTHEPARTOFRESCEESTIMATIONITDIVIDEDTHEBODYOFJIAMADEPOSITINTOMANYUNITSOFCALCULATIONCONSIDEREDEACHUNITITEDAPPROPRIATEMETHODOFESTIMATIONFEACHUNITTOTHENO1UNITITINTRODUCEDHOWTOUSEKRINGMETHODTOESTIMATETHERESERVESINCLUDINGDATAANALYSISDATAPREPROCESSINGSPECIFICVALUEPROCESSINGDATAVISUALIZATIONVARIOGRAMKRIGINGESTIMATIONRESERVESCALCULATIONSOONINTHISSECTIONITINCLUDEDNOTONLYTHEESSENCEOFTHETHINKINGOFTHEKRIGINGINCLUDINGVARIOGRAMANALYSISKRIGINGVALUATIONETCBUTALSOGAVEADETAILEDEXAMPLECOMBINEDWITHTHECUDEPOSITITEDTHEAPPROPRIATEALGITHMCALCULATEDVARIATIONFUNCTIONDREWTHEFIGURESOFVARIATIONFUNCTIONINEACHDIRECTIONEDTHEPARAMETERSOFBLOCKMODELSTHENUNDERTHEMATLABPLATFMITESTIMATEDTHERESERVESOFCUMOFINALLYTHERESULTOFRESERVESCALCULATIONISRELIABLEBYCONTRASTINGITWITHTHERESULTOFRESERVESCALCULATIONWITHSDSOFTWAREINADDITIONCOMBINEDWITHTHEDEPOSITTHISPAPERGAVETHEFIGUREOFTHESPATIALDISTRIBUTIONOFDRILLHOLESTHESPATIALFMOFTHEMINETHEFIGUREOFTHREEDIMENSIONALSIMULATIONOFTHETERRAINSOONUNDERTHEMATLABKEYWDSRESERVESESTIMATESGEOSTATISTICSCUDEPOSIT
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頁數(shù): 57
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簡介:內(nèi)蒙古農(nóng)業(yè)大學(xué)碩士學(xué)位論文地質(zhì)統(tǒng)計學(xué)在水文地質(zhì)參數(shù)空間變異性應(yīng)用中幾個問題的研究姓名王亮申請學(xué)位級別碩士專業(yè)水文學(xué)及水資源指導(dǎo)教師朝倫巴根20070501SEVERALPROBLEMSOFAPPLYINGGEOSTATISTICFORTHESTUDYONSPATIALVARIABILITYOFHYDROGEOLOGICPARAMETERSABSTRAOTTHEHYDROGEOLOGICPARAMETERSARETHEIMPORTANTPARAMETERSOFTHEGROUNDWATERRESOURCESASSESSMENTNUMERICALMODELINGIDENTIFICATIONON、INSPECTIONANDPREDICTIONHOWEVERITSTEMPORALANDSPATIALVARIABILITYISVERYHIGH勰INFECTEDBYTHEHYDROGEOLOGICCONDITIONANDEXPLOITATIONSOTHESTUDYOFSPATIALVARIABILITYONHYDROGEOLOGICPARAMETERSISVERYIMPORTANTFORINCREASETHEPRECISIONOFTHEGROUNDWATERRESOURCESASSESSLLLENTTHISPAPERISSUPPORTEDBYTHEPROJECTOF‘‘ASTUDYOFSCIENTIFICALLOCATIONOFWATERRESOURCESFORVEGETATIONCONSTRUCTIONINTHESANDYAREABETWEENBEIJINGANDINNERMONGOLIA’,DISCUSSINGSEVERALPROBLEMSOFAPPLYINGGEOSTATISTIEFORTHESTUDYONSPATIALVARIABILITYOFHYDROGEOLOGIEPARAMETERS,ANDUSINGTHEORDINARYIMGMGMETHOD、UNIVERSALKRIGINGMETHOD、COKRIGINGMETHODANDCOUNIVERSALKRIGINGMETHODTOSTUDYTHESPATIALVARIABILITYOFHYDROGEOLOGICPARAMETERSINTHESTUDYREGIONONTHEBASISOFTHEABOVERESUITTHEMAINCONTENTSOFTHEPAPERAREASFOLLOWS1THECHOICEOFTHELARGESCALE、NONLINEARANDUNEQUIDISTANTSAMPLINGNET2THESTUDYONTHESPATIALCORRELATIONOFTHEREGIONALIZEDVARIABLEANDCOREGIONALIZEDVARIABLE3THERELATIONBETWEENTHEHGDISTANCEANDTHEREASONABLENUMBEROFDATAPAIRWHENCALCULATINGTHEEXPERIMENTALVARIOGRAMINTHELARGESCALE、NONLINEARANDUNEQUIDISTANTSARAPTINGNET4THEOBTAINOFTHEVARIOGRAMOFNONSTATIONARYREGIONALIZEDVARIABLE5THESTUDYONTHEMETHODOFOBTAININGTHEROBUSTVARIOGRAM_6THEOBTAINANDAFFWMANEEOFTHETHEORETICALVARIOGRAM7THEEXAMPLEOFAPPLYINGORDINARYL【RIGINGMETHOD、UNIVERSALKRIGINGMETHOD、COKRIGINGMETHODANDCOUNIVERSALKRIG啦METHODTOSTUDYTHESPATIALVARIABILITYOFHYDROGEOLOGICPARAMETERSKEYWORDSKRIGINGMETHOD,SPATIALCORRELATION;HYDROGEOLOGICPARAMETERS;SPATIALVARIABILITYDIREOTEDBYPROFOHAOIUNBAGEN
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頁數(shù): 78
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簡介:河北大學(xué)碩士學(xué)位論文基于模糊樣本的統(tǒng)計學(xué)習(xí)理論關(guān)鍵定理姓名唐文廣申請學(xué)位級別碩士專業(yè)應(yīng)用數(shù)學(xué)指導(dǎo)教師哈明虎王熙照20040501ABSTRACTVABSTRACTINTHISTHESISTHENONTRIVIALCONSISTENCYKEYTHEOREMOFLEARNINGPROCESSESABOUTFUZZYEXAMPLESWEREGENERALIZEDBYUSEOFTHEKNOWLEDGEOFSTATISTICALWITHVAGUEDATASOMEDEFINITIONSSUCHASFUZZYRISKFUNCTIONALFUZZYEMPIRICALRISKFUNCTIONALFUZZYEMPIRICALRISKMINIMIZATIONPRINCIPLEAREPROPOSEDTHEKEYTHEOREMOFLEARNINGTHEORYBASEDONFUZZYEXAMPLESWASPROOFEDANDWEALSOSTUDIEDTHEBOUNDSONRATECONVERGENCEOFTHELEARNINGPROCESSESKEYWDSFUZZYROMVARIABILITYFUZZYRISKFUNCTIONALSTRICTLYCONSISTENTCONVERGENCEBOUNDSONRATEOFUNIFMCONVERGENC
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簡介:福建師范大學(xué)碩士學(xué)位論文基于SOM神經(jīng)網(wǎng)絡(luò)和空間統(tǒng)計學(xué)的土地利用景觀格局研究姓名李茂剛申請學(xué)位級別碩士專業(yè)地圖學(xué)與地理信息系統(tǒng)指導(dǎo)教師陳松林20070401
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頁數(shù): 79
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簡介:河北大學(xué)碩士學(xué)位論文基于粗糙模糊樣本的統(tǒng)計學(xué)習(xí)理論的理論基礎(chǔ)姓名王曉麗申請學(xué)位級別碩士專業(yè)應(yīng)用數(shù)學(xué)指導(dǎo)教師田大增;哈明虎201105ABSTRACTIIABSTRACTINTHISPAPERROUGHFUZZYTHEYSTATISTICALLEARNINGTHEYARECOMBINEDTOGENERALIZETHEBASICPROBLEMSOFSTATISTICALLEARNINGTHEYWITHROUGHFUZZYSAMPLESTHECREDIBILITYMEASUREFIRSTLYTHEKHINCHINELAWOFLARGENUMBERSBASEDONTHECREDIBILITYMEASUREROUGHFUZZYSAMPLESISGIVENSOMECONCEPTSSUCHASROUGHFUZZYEXPECTEDRISKFUNCTIONALROUGHFUZZYEMPIRICALRISKFUNCTIONALROUGHFUZZYEMPIRICALRISKMINIMIZATIONPRINCIPLEAREPROPOSEDTHEKEYTHEEMOFLEARNINGTHEYBASEDONTHECREDIBILITYMEASUREROUGHFUZZYSAMPLEISPROVEDFURTHERMETHEBOUNDSONTHERATEOFUNIFMCONVERGENCEOFLEARNINGPROCESSESBASEDONTHECREDIBILITYMEASUREROUGHFUZZYSAMPLESAREDISCUSSEDFINALLYWEGIVETHEDEFINITIONOFTHEROUGHFUZZYSTRUCTURALRISKMINIMIZATIONPRINCIPLETHEASYMPTOTICBOUNDSONTHERATEOFCONVERGENCEBASEDONTHECREDIBILITYMEASUREROUGHFUZZYSAMPLESWHICHBECOMECNERSTONESOFTHETHEETICALFUNDAMENTALSOFTHESLTFROUGHFUZZYSAMPLESTHECREDIBILITYMEASUREKEYWDSROUGHFUZZYVARIABLETHEKEYTHEEMBOUNDSOFTHERATEOFUNIFMCONVERGENCEROUGHFUZZYSTRUCTURALRISKMINIMIZATIONPRINCIPLE
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