在执行libsvm实例中使用。
'''Gnuplot是一个命令行的交互式绘图工具（command-driveninteractivefunctionplottingprogram）。
用户通过输入命令，可以逐步设置或修改绘图环境，并以图形描述数据或函数，使我们可以借由图形做更进一步的分析。
'''

DistributedSystems(3rd)英文无水印原版pdf第3版pdf所有页面使用FoxitReader、PDF-XChangeViewer、SumatraPDF和Firefox测试都可以打开本资源转载自网络，如有侵权，请联系上传者或csdn删除查看此书详细信息请在美国亚马逊官网搜索此书Copyright@2017MaartenvanSteenandAndrewS.TanenbaumPublishedbyMaartenvanSteenThisbookwaspreviouslypublishedby:PearsonEducation,IncISBN:978-15-430573-8-6(printedversion)ISBN:978-90-815406-2-9(digitalversion)Edition:3.Version:01(February2017)AllrightstotextandillustrationsarereservedbyMaartenvanSteenandAndrewS.Tanenbaum.Thisworkmaynotbecopied,reproduced,ortranslatedinwholeorpartwithoutwrittenpermissionofthepublisher,exceptforbriefexcerptsinreviewsorscholanyformofinformationstorageadaptationorwhatever,computersoftware,orbysimilarordissimilarmethodsnowknownordevelopedinthefutureisstrictlyforbiddenwithoutwrittenpermissionofthepublisherToMarielle,max,andelkeMVSToSuzanneBarbara,Marvin,Aronnathan,olivia,andmirteASTCONTENTSPreface1Introduction1.1Whatisadistributedsystem?Characteristic1:Collectionofautonomouscomputingelements2Characteristic2:SinglecoherentsystemMiddlewareanddistributedsystems1.2DesigngoalsSupportingresourcesharingMakingdistributiontransparent12Beingscalable15Pitfalls243Typesofdistributedsystems24Highperformancedistributedcomputing25Distributedinformationsystems34Pervasivesystems1.4Summary522Architectures552.1Architecturalstyles56Layeredarchitectures.57Object-basedandservice-orientedarchitectures62Resource-basedarchitectures64Publish-subscribearchitectures2.2MiddlewareorganizationWrappersInterceptors垂番Modifiablemiddleware752.3SystemarchitectureCONTENTSCentralizedorganizations76Decentralizedorganizations:peer-to-peersystemsHybridarchitectures2.4Examplearchitectures94TheNetworkFilesystem94TheWeb982.5Summary3Processes1033.1Threads..104Introductiontothreads104Threadsindistributedsystems1113.2Virtualization116Principleofvirtualizationapplicationofvirtualmachinestodistributedsystems,1223.3Clients124Networkeduserinterfaces124Client-sidesoftwarefordistributiontransparency1273.4Servers128Generaldesignissues129Objectservers133Example:TheApacheWebserver139Serverclusters,,,,,,,1413.5Codemigration152Reasonsformigratingcode152Migrationinheterogeneoussystems1583.6Summary1614Communication4.1Foundations164LayeredProtocols164TypesofCommunication.1724.2Remoteprocedurecall..173Basicrpcoperation174Parameterpassing178RPC-basedapplicationsupport182VariationsonrPc185Example:dCErPc,.1884.3Message-orientedcommunication193Simpletransientmessagingwithsockets.193Advancedtransientmessaging198Message-orientedpersistentcommunication206Example:IBM'sWebSpheremessage-queuingsystem212Example:AdvancedMessageQueuingProtocol(AMQP)....218DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFOCONTENTS4.4Multicastcommunication221Application-leveltree-basedmulticasting221Flooding-basedmulticasting225Gossip-baseddatadissemination2294.5Summary2345Naming2375.1Names,identifiersandaddresses2385.2Flatnaming.241Simplesolutions241Home-basedapproaches245Distributedhashtables246Hierarchicalapproaches2515.3Structurednaming256Namespaces.256Nameresolution259Theimplementationofanamespace264Example:TheDomainNameSystem271Example:TheNetworkFileSystem2785.4Attribute-basednaming283Directoryservices283Hierarchicalimplementations:LDAP285Decentralizedimplementations2885.5Summary2946Coordination2976.1Clocksynchronization.298Physicalclocks299Clocksynchronizationalgorithms3026.2Logicalclocks310Lamport'slogicalclocks310Vectorclocks3166.3Mutualexclusion321322acentralizedalgorithm.322adistributedalgorithm323atoken-ringalgorithm.325adecentralizedalgorithm3266.4Electionalgorithms329Thebullyalgorithm.,..330Aringalgorithm332Electionsinwirelessenvironments333Electionsinlarge-scalesystems.3356.5Locationsystems336DOWNLOADEDBYTEWIGOMIXMAIL.INFODS301VIllCONTENTSGPS:GlobalPositioningSystem337WhengPsisnotanoption339Logicalpositioningofnodes3396.6Distributedeventmatching..343Centralizedimplementations3436.7Gossip-basedcoordination349asgregation349Apeer-samplingservice350Gossip-basedoverlayconstruction3526.8Summary3537Consistencyandreplication3557.1Introduction356Reasonsforreplication356Replicationasscalingtechnique3577.2Data-centricconsistencymodels358Continuousconsistency359Consistentorderingofoperations364Eventualconsistency3737.3Client-centricconsistencymodels375MonotonicreadsMonotonicwrites.379Readyourwrite380Writesfollowreads3827.4ReplicamanagementFindingthebestserverlocation383Contentreplicationandplacement..385Contentdistribution..388Managingreplicatedobjects3937.5Consistencyprotocols.396Continuousconsistency..........396Primary-basedprotocols398Replicated-writeprotocolsCache-coherence403Implementingclient-centricconsistency,,...4077.6Example:CachingandreplicationintheWeb4097.7Summar4208Faulttoleran4238.1Introductiontofaulttolerance424Basicconcepts.424Failuodels427Failuremaskingbyredundancy8.2Processresilience432DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFO

Thei.MXRT1050processorsareNXP'slatestadditionstoagrowingfamilyofreal-timeprocessingproductsofferinghigh-performanceprocessingoptimizedforlowestpowerconsumptionandbestreal-timeresponse.Thei.MXRT1050processorsfeatureNXP'sadvancedimplementationoftheARM®Cortex®-M7core.

从mysql官网上下载mysql-server_5.7.21-1ubuntu14.04_amd64.deb-bundle.tar，然后进行离线安装，解压该安装包，会出现11个依赖包，按照顺序依次使用sudodpkg-i进行安装，中间会报错，显示缺少相应的依赖，具体如下：*******@ubuntu:/opt/mysql$sudodpkg-imysql-community-client_5.7.21-1ubuntu14.04_amd64.debSelectingpreviouslyunselectedpackagemysql-community-client.(Readingdatabase...208518filesanddirectoriescurrentlyinstalled.)Preparingtounpackmysql-community-client_5.7.21-1ubuntu14.04_amd64.deb...Unpackingmysql-community-client(5.7.21-1ubuntu14.04)...dpkg:dependencyproblemspreventconfigurationofmysql-community-client:mysql-community-clientdependsonlibaio1(＞=0.3.93);however:Packagelibaio1isnotinstalled.dpkg:errorprocessingpackagemysql-community-client(--install):dependencyproblems-leavingunconfiguredProcessingtriggersforman-db(2.6.7.1-1ubuntu1)...Errorswereencounteredwhileprocessing:mysql-community-client和********@ubuntu:/opt/mysql$sudodpkg-imysql-community-server_5.7.21-1ubuntu14.04_amd64.debSelectingpreviouslyunselectedpackagemysql-community-server.(Readingdatabase...208598filesanddirectoriescurrentlyinstalled.)Preparingtounpackmysql-community-server_5.7.21-1ubuntu14.04_amd64.deb...Unpackingmysql-community-server(5.7.21-1ubuntu14.04)...dpkg:dependencyproblemspreventconfigurationofmysql-community-server:mysql-community-serverdependsonlibmecab2(＞=0.996-1.1);however:Packagelibmecab2isnotinstalled.dpkg:errorprocessingpackagemysql-community-server(--install):dependencyproblems-leavingunconfiguredProcessingtriggersforman-db(2.6.7.1-1ubuntu1)...Processingtriggersforureadahead(0.100.0-16)...ureadaheadwillbereprofiledonnextrebootErrorswereencounteredwhileprocessing:mysql-community-server附上依赖包安装顺序：1.mysql-common_5.7.21-1ubuntu14.04_amd64.deb2.libmysqlclient20_5.7.21-1ubuntu14.04_amd64.deb3.libmysqlclient-dev_5.7.21-1ubuntu14.04_amd64.deb4.libmysqld-dev_5.7.21-1ubuntu14.04_amd64.deb

ComputerConstructionPrinciplesandPracticesThisexcitingnewbookcombinesadetailedstudyofmoderntheoriesofcompilerdesignwithacompletedescription(withsourcecode)ofaworkingcompilerforasmalllanguage.Thebookreflectstheauthor'sconvictionthatpracticalaspectsofcompilerdesigncannotbeunderstoodwithoutagraspoftheory,andthattheorycannotbetrulycomprehendedbyundergraduatestudentswithoutseeingitputintoactualpractice.Unifyingthetext'sdiscussionofconceptsisacompleteworkingcompilerwritteninCanddevelopedusingthetechniquesdiscussedineachchapter.Extensiveexercisesetsattheendofeachchapterfocusstudent'sattentiononspecificprogrammingproblems

可以通过51控制通信芯片供有特殊需要的用户使用，SSIM808，GPS+GLO+北斗，定位速度更快，更准，更狠，独家固件还支持LBS基站定位，定位无死角啊！一款集成GSM/GPRS/GPS/蓝牙，还有基站定位的模块_SIM868,性能稳定，功能强悍

Byapplyingsupportvectorregression,themodelingdataofriceleavescollectedinourstudyweregroupedintosampletrainingsetandtestset,andthreemachinelearningpredictionmodelsonricegrowingenvironmentagainstleafbladelength,widthandSPADvaluewereconstructed..

数字通信（JohnGProakis）（中文版，电子工业出版社）第五版的课后习题答案

支持向量机源码，可在www.csie.ntu.edu.tw/~cjlin/libsvm/下载到最新版本，该版本是2013年4月更新的，3.17版。
压缩包里面有源代码和文档。
以下摘自前述网站：IntroductionLIBSVMisanintegratedsoftwareforsupportvectorclassification,(C-SVC,nu-SVC),regression(epsilon-SVR,nu-SVR)anddistributionestimation(one-classSVM).Itsupportsmulti-classclassification.Sinceversion2.8,itimplementsanSMO-typealgorithmproposedinthispaper:R.-E.Fan,P.-H.Chen,andC.-J.Lin.WorkingsetselectionusingsecondorderinformationfortrainingSVM.JournalofMachineLearningResearch6,1889-1918,2005.Youcanalsofindapseudocodethere.(howtociteLIBSVM)OurgoalistohelpusersfromotherfieldstoeasilyuseSVMasatool.LIBSVMprovidesasimpleinterfacewhereuserscaneasilylinkitwiththeirownprograms.MainfeaturesofLIBSVMincludeDifferentSVMformulationsEfficientmulti-classclassificationCrossvalidationformodelselectionProbabilityestimatesVariouskernels(includingprecomputedkernelmatrix)WeightedSVMforunbalanceddataBothC++andJavasourcesGUIdemonstratingSVMclassificationandregressionPython,R,MATLAB,Perl,Ruby,Weka,CommonLISP,CLISP,Haskell,OCaml,LabVIEW,andPHPinterfaces.C#.NETcodeandCUDAextensionisavailable.It'salsoincludedinsomedataminingenvironments:RapidMiner,PCP,andLIONsolver.Automaticmodelselectionwhichcangeneratecontourofcrossvaliationaccuracy.

提出一种车载自组织网络(VANET)中考虑节点质量的机会路由协议——QAOR(QualityofnodebasedAdaptiveOpportunisticRoutingProtocol)。
针对以往协议均没考虑到节点历史接触频繁性的问题,该协议在路口根据距离目的最近和反映节点接触频繁性的质量两个指标机会选择下一跳,改善了GPSR在路口下一跳没有后续节点的情况;在直路上运用加入携带转发机制的贪婪算法。
NS-2仿真显示,在城市场景中,QAOR自适应选路,比传统贪婪算法GPSR投递率增加,延时减少。

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。