在线考试系统文献综述中文摘要：随着网络技术的日益成熟，网络已经深入到生活的每一个角落，包括教育、购物、咨询、办公等等许多领域。
在网络迅速发展的今天，网页技术的应用也越来越广泛。
网页技术的应用对于教育行业来说优势更加的明显。
教育行业可以通过网络进行学生和教职工的管理、组织学生在线考试、在网站上发布学校相关信息等活动。
这样不仅能增加学校管理的透明度，还提高了学校的管理水平。
在线考试还能充分的利用学校的现有资源，大大减轻教师的工作量，把老师从出卷、阅卷等一些繁重中做中解脱出来。
本文重点论述了由于网络的存在扩大了学校的服务范围，为学校的管理提供了更多的条件。
对此做出了详细的调查，可行性研究和分析。
系统采用了B/S结构，在网络上建立学校自己的教育网站。
系统开发经历了系统分析、系统设计和系统实施三个阶段。
从设计方案的提出，经过详细的调查，分析了方案的可行性和必要性，通过详细的系统设计，力图提高系统的集成性和快捷性；
并在系统实施阶段收集了大量的实验数据，以便测试阶段系统的准确性和稳定性。
系统整体是基于浏览器/服务器，前台应用JSP技术，后台采用SQLServer2000作为数据库与前台连接。
关键词：网络教育在线考试B/S结构JSP技术 AbstractWiththeincreasinglysophisticatednetworktechnologies,thenetworkhadpenetratedeverycorneroflife,includingeducation,shopping,advice,officeandsomanyfields.Today,therapiddevelopmentofthenetwork,theapplicationofwebtechnologymoreandmorewidely.Webtechnologyadvantagefortheeducationindustryismoreevident.Educationsectorthroughanetworkofstudentsandfacultymanagement,studentorganizations,onlineexaminations,inthewebsiteinformationandotherschoolactivities.Thiscannotonlyincreasethetransparencyofschoolmanagement,butalsotoimprovetheschoolmanagementlevel.Onlinetestcanfullyutilizetheschool'sexistingresources,greatlyreducingtheworkloadofteachers,theteacherfromthevolumeofgradingtodoandsomeheavyfreed.Thisarticlefocusesontheexistenceofasnetworkservicestoexpandthescopeoftheschool,theschoolmanagementtoprovidemoreconditions.Havemadeadetailedsurvey,feasibilitystudiesandanalysis.SystemusestheB/Sstructureofthenetworktoestablishtheirownschools,educationalwebsites.Systemdevelopmentthroughsystemanalysis,systemdesignandsystemimplementationofthethreestages.Fromthedesignoftheproposal,afteradetailedinvestigationofthefeasibilityandnecessity,throughdetaileddesign,tryingtoimprovesystemintegrationandspeed;andimplementationphaseinthesystem,alargenumberofexpe

一篇著名的数据库数据检索论文，由加州伯克利大学的AntoninGuttman撰写。
论文索引：在计算机辅助设计跟空间数据应用中，为了能高效处理空间数据，数据库系统需要一个检索功能从而根据空间位置来迅速抓取数据。
但是，传统的检索方法不适合用于多维空间中的有限大小的数据对象。
在这篇论文中我们设计了一个叫做R-树的动态检索结构，这种设计满足了我们新的需求并且包含了搜索跟更新数据的算法。
通过一系列的测试我们发现这种数据结构非常高效并认为这种结构适合于当前的空间数据应用数据库系统。

DatabaseSystemConcepts——数据库系统概念第六版（英文版）作者：AbrahamSilberschatz(YaleUniversity)HenryF.Korth(LehighUniversity)S.Sudarshan(IndianInstituteofTechnology,Bombay)本书目录：Chapter1Introduction1.1Database-SystemApplications11.2PurposeofDatabaseSystems31.3ViewofData61.4DatabaseLanguages91.5RelationalDatabases121.6DatabaseDesign151.7DataStorageandQuerying201.8TransactionManagement221.9DatabaseArchitecture231.10DataMiningandInformationRetrieval251.11SpecialtyDatabases261.12DatabaseUsersandAdministrators271.13HistoryofDatabaseSystems291.14Summary31Exercises33BibliographicalNotes35Chapter2IntroductiontotheRelationalModel2.1StructureofRelationalDatabases392.2DatabaseSchema422.3Keys452.4SchemaDiagrams462.5RelationalQueryLanguages472.6RelationalOperations482.7Summary52Exercises53BibliographicalNotes55Chapter3IntroductiontoSQL3.1OverviewoftheSQLQueryLanguage573.2SQLDataDefinition583.3BasicStructureofSQLQueries633.4AdditionalBasicOperations743.5SetOperations793.6NullValues833.7AggregateFunctions843.8NestedSubqueries903.9ModificationoftheDatabase983.10Summary104Exercises105BibliographicalNotes112Chapter4IntermediateSQL4.1JoinExpressions1134.2Views1204.3Transactions1274.4IntegrityConstraints1284.5SQLDataTypesandSchemas1364.6Authorization1434.7Summary150Exercises152BibliographicalNotes156Chapter5AdvancedSQL5.1AccessingSQLFromaProgrammingLanguage1575.2FunctionsandProcedures1735.3Triggers1805.4RecursiveQueries1875.5AdvancedAggregationFeatures1925.6OLAP1975.7Summary209Exercises211BibliographicalNotes216Chapter6FormalRelationalQueryLanguages6.1TheRelationalAlgebra2176.2TheTupleRelationalCalculus2396.3TheDomainRelationalCalculus2456.4Summary248Exercises249BibliographicalNotes254Chapter7Datab

DavidJ.HandDepartmentofMathematics,ImperialCollegeLondon,London,UKDataminingisthediscoveryofinteresting,unexpectedorvaluablestructuresinlargedatasets.Assuch,ithastworatherdifferentaspects.Oneoftheseconcernslarge-scale,‘global’structures,andtheaimistomodeltheshapes,orfeaturesoftheshapes,ofdistributions.

用于无声卡电脑-VirtualAudioCableAtfirst,pleaseunpackthedistributionpackageintoanemptyfolderonalocaldrive,makingsurethatlocalfolderpathdoesnotcontainspecialcharacterslike"#","&"orsimilar.Unpackingthepackage,preservefolderstructure(afterunpacking,destinationfoldershouldcontain"x86"and"x64"subfolders).IfyouarenewtoVirtualAudioCable,pleasereadtheusermanualbeforeinstallation.ThebestwaytoopenthemanualistoruninstallerapplicationnamedSetupandclickthe"Help"buttoninthefirstinstallationdialog.Theusermanualfile(vac.chm,afilenamed"vac"withasheetandquestionmarkicon)isanHTMLHelpformatfile.Donotopenmanualfilefromanetworkpathordirectlyfromthepackageotherwisehelppagesmaynotbedisplayedduetosecurityrestrictions.Copythefiletoalocaldrivebeforeopening.Pleasemakesurethatlocalfilepathdoesnotcontainspecialcharacters.Ifusermanualfileisopenedfromalocaldrivebutpagesontherightpanearenotdisplayedproperly,pleasecheckifvac.chmfilehasthe"Unblock"buttoninitsPropertiesform(right-clickthefiletoopenitsproperties).Ifyes,unblockit.Seealso"Howblockingsomeattachmentshelpsprotectyourcomputer"topicinWindowsHelp(Start-HelpandSupport)andhttp://support.microsoft.com/kb/902225.Readingthemanual,don'tforgetthatthereisthe"Search"tab.Havingaproblem,entersomewordsrelatedtotheproblemandappropriatepageswillbedisplayed.Ofcourse,searchfeaturewillnothelpifyouenteraquestionlike"howcanIuseit?".Itonlyfindspagescontaininggivenkeywords.

ContentsPrefacevTypographicalConventionsxi1Introduction11.1AQuickOverviewofS.......................31.2UsingS...............................51.3AnIntroductorySession......................61.4WhatNext?.............................122DataManipulation132.1Objects...............................132.2Connections.............................202.3DataManipulation.........................272.4TablesandCross-Classification...................373TheSLanguage413.1LanguageLayout..........................413.2MoreonSObjects.........................443.3ArithmeticalExpressions......................473.4CharacterVectorOperations....................513.5FormattingandPrinting.......................543.6CallingConventionsforFunctions.................553.7ModelFormulae...........................563.8ControlStructures..........................583.9ArrayandMatrixOperations....................603.10IntroductiontoClassesandMethods................664Graphics694.1GraphicsDevices..........................714.2BasicPlottingFunctions......................72viiviiiContents4.3EnhancingPlots...........................774.4FineControlofGraphics......................824.5TrellisGraphics...........................895UnivariateStatistics1075.1ProbabilityDistributions......................1075.2GeneratingRandomData......................1105.3DataSummaries...........................1115.4ClassicalUnivariateStatistics....................1155.5RobustSummaries.........................1195.6DensityEstimation.........................1265.7BootstrapandPermutationMethods................1336LinearStatisticalModels1396.1AnAnalysisofCovarianceExample................1396.2ModelFormulaeandModelMatrices...............1446.3RegressionDiagnostics.......................1516.4SafePrediction....................

Thispaperisasurveyofthetheoryandmethodsofphotogrammetricbundleadjustment,aimedatpotentialimplementorsinthecomputervisioncommunity.Bundleadjustmentistheproblemofrefiningavisualreconstructiontoproducejointlyoptimalstructureandviewingparameterestimates.Topicscoveredinclude:thechoiceofcostfunctionandrobustness;numericaloptimizationincludingsparseNewtonmethods,linearlyconvergentapproximations,updatingandrecursivemethods;gauge(datum)invariance;andqualitycontrol.Thetheoryisdevelopedforgeneralrobustcostfunctionsratherthanrestrictingattentiontotraditionalnonlinearleastsquares.

xilliixpciedma驱动（基于xilnxxdmaip核4.0的WDF驱动）---#XDMAWindowsDriverThisprojectisXilinx'ssampleWindowsdriverfor'DMA/BridgeSubsystemforPCIExpressv4.0'(XDMA)IP.*Pleasenotethatthisdriverandassociatedsoftwarearesuppliedtogiveabasicgenericreferenceimplementationonly.Customersmayhavespecificuse-casesand/orrequirementsforwhichthisdriverisnotsuitable.*###Dependencies*TargetmachinerunningWindows7orWindows10*DevelopmentmachinerunningWindows7(orlater)*VisualStudio2015(orlater)installedondevelopmentmachine*WindowsDriverKit(WDK)version1703(orlater)installedondevelopmentmachine##DirectoryStructure```/|__build/-Generateddirectorycontainingbuildoutputbinaries.|__exe/-Containssampleclientapplicationsourcecode.||__simple_dma/-SamplecodeforAXI-MMconfiguredXDMAIP.||__streaming_dma/-SamplecodeforAXI-STconfiguredXDMAIP.||__user_events/-Samplecodeforaccesstousereventinterrupts.||__xdma_info/-UtilityapplicationwhichprintsouttheXDMAcoreip||configuration.||__xdma_rw/-Utilityforreading/writingto/fromxdmadevicenodessuch||ascontrol,user,bypass,h2c_0,c2h_0etc.||__xdma_test/-BasictestapplicationwhichperformsH2C/C2Htransferson|allpresentchannels.|__inc/-ContainspublicAPIheaderfileforXDMAdriver.|__libxdma/-StatickernellibraryforXDMAIP.|__sys/-Referencedriversourcecodewhichuseslibxdma|__README.md-Thisfile.|__XDMA.sln-VisualStudioSolution.```

ApacheThriftisanopensourcecrosslanguageserializationandRPCframework.Withsupportforover15programminglanguages,ApacheThriftcanplayanimportantroleinarangeofdistributedapplicationdevelopmentenvironments.AsaserializationplatformApacheThriftenablesefficientcrosslanguagestorageandretrievalofawiderangeofdatastructures.AsanRPCframework,ApacheThriftenablesrapiddevelopmentofcompletepolyglotservicesinafewlinesofcode.Part1ofthisbooktakesyouonaguidedtourthroughtherangeofdistributeddevelopmentsolutionsempoweredbyApacheThrift.You’llseehowtheApacheThriftframeworkfitsintovariouscommunicationsschemesandalsogetahighlevelpictureoftheoverallApacheThriftarchitecture.

RobertSedgewickhasthoroughlyrewrittenandsubstantiallyexpandedandupdatedhispopularworktoprovidecurrentandcomprehensivecoverageofimportantalgorithmsanddatastructures.ChristopherVanWykandSedgewickhavedevelopednewC++implementationsthatbothexpressthemethodsinaconciseanddirectmanner,andalsoprovideprogrammerswiththepracticalmeanstotestthemonrealapplications.Manynewalgorithmsarepresented,andtheexplanationsofeachalgorithmaremuchmoredetailedthaninpreviouseditions.Anewtextdesignanddetailed,innovativefigures,withaccompanyingcommentary,greatlyenhancethepresentation.ThethirdeditionretainsthesuccessfulblendoftheoryandpracticethathasmadeSedgewick'sworkaninvaluableresourceformorethan250,000programmers!Thisparticularbook,Parts1n4,representstheessentialfirsthalfofSedgewick'scompletework.Itprovidesextensivecoverageoffundamentaldatastructuresandalgorithmsforsorting,searching,andrelatedapplications.Althoughthesubstanceofthebookappliestoprogramminginanylanguage,theimplementationsbyVanWykandSedgewickalsoexploitthenaturalmatchbetweenC++classesandADTimplementations.Highlights*Expandedcoverageofarrays,linkedlists,strings,trees,andotherbasicdatastructures*Greateremphasisonabstractdatatypes(ADTs),modularprogramming,object-orientedprogramming,andC++classesthaninpreviouseditions*Over100algorithmsforsorting,selection,priorityqueueADTimplementations,andsymboltableADT(searching)implementations*Newimplementationsofbinomialqueues,multiwayradixsorting,randomizedBSTs,splaytrees,skiplists,multiwaytries,Btrees,extendiblehashing,andmuchmore*Increasedquantitativeinformationaboutthealgorithms,givingyouabasisforcomparingthem*Over1000newexercisestohelpyoulearnthepropertiesofalgorithmsWhetheryouarelearningthealgorithmsforthefirsttimeorwishtohaveup-to-datereferencematerialthatincorporatesnewprogrammingstyleswithclassicandnewalgorithms,youwillfindawealthofusefulinformationinthisbook.

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。