著名的Netflix智能推荐百万美金大奖赛使用是数据集.因为竞赛关闭,Netflix官网上已无法下载.Netflixprovidedatrainingdatasetof100,480,507ratingsthat480,189usersgaveto17,770movies.Eachtrainingratingisaquadrupletoftheform.TheuserandmoviefieldsareintegerIDs,whilegradesarefrom1to5(integral)stars.[3]Thequalifyingdatasetcontainsover2,817,131tripletsoftheform,withgradesknownonlytothejury.Aparticipatingteam'salgorithmmustpredictgradesontheentirequalifyingset,buttheyareonlyinformedofthescoreforhalfofthedata,thequizsetof1,408,342ratings.Theotherhalfisthetestsetof1,408,789,andperformanceonthisisusedbythejurytodeterminepotentialprizewinners.Onlythejudgesknowwhichratingsareinthequizset,andwhichareinthetestset—thisarrangementisintendedtomakeitdifficulttohillclimbonthetestset.Submittedpredictionsarescoredagainstthetruegradesintermsofrootmeansquarederror(RMSE),andthegoalistoreducethiserrorasmuchaspossible.Notethatwhiletheactualgradesareintegersintherange1to5,submittedpredictionsneednotbe.Netflixalsoidentifiedaprobesubsetof1,408,395ratingswithinthetrainingdataset.Theprobe,quiz,andtestdatasetswerechosentohavesimilarstatisticalproperties.Insummary,thedatausedintheNetflixPrizelooksasfollows:Trainingset(99,072,112ratingsnotincludingtheprobeset,100,480,507includingtheprobeset)Probeset(1,408,395ratings)Qualifyingset(2,817,131ratings)consistingof:Testset(1,408,789ratings),usedtodeterminewinnersQuizset(1,408,342ratings),usedtocalculateleaderboardscoresForeachmovie,titleandyearofreleaseareprovidedinaseparatedataset.Noinformationatallisprovidedaboutusers.Inordertoprotecttheprivacyofcustomers,"someoftheratingdataforsomecustomersinthetrainingandqualifyin

gsap：gsap练习

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万有引力搜索算法（GravitationalSearchAlgorithm，GSA）是由伊朗克曼大学的EsmatRashedi等人于2009年所提出的一种新的启发式优化算法，其源于对物理学中的万有引力进行模拟产生的群体智能优化算法。
万有引力搜索算法GSA的原理是通过将搜索粒子看作一组在空间运行的物体，物体间通过万有引力相互作用吸引，物体的运行遵循动力学的规律。

多旅行商matlab实验源码实现了三种多旅行商问题%MTSPOF_GAFixedOpenMultipleTravelingSalesmenProblem(M-TSP)GeneticAlgorithm(GA)%Findsa(near)optimalsolutiontoavariationofthe"open"M-TSPby%settingupaGAtosearchfortheshortestroute(leastdistanceneeded%foreachsalesmantotravelfromthestartlocationtounique%individualcitiesandfinallytotheendlocation)%%Summary:%1.Eachsalesmanstartsatthefirstpoint,andendsatthelast%point,buttravelstoauniquesetofcitiesinbetween(noneof%themclosetheirloopsbyreturningtotheirstartingpoints)%2.Exceptforthefirstandlast,eachcityisvisitedbyexactlyonesalesman%%Note:TheFixedStartistakentobethefirstXYpointandtheFixedEnd%istakentobethelastXYpoint%%Input:%XY(float)isanNx2matrixofcitylocations,whereNisthenumberofcities%DMAT(float)isanNxNmatrixofcity-to-citydistancesorcosts%SALESMEN(scalarinteger)isthenumberofsalesmentovisitthecities%MIN_TOUR(scalarinteger)istheminimumtourlengthforanyofthe%salesmen,NOTincludingthestartpointorendpoint%POP_SIZE(scalarinteger)isthesizeofthepopulation(shouldbedivisibleby8)%NUM_ITER(scalarinteger)isthenumberofdesirediterationsforthealgorithmtorun%SHOW_PROG(scalarlogical)showstheGAprogressiftrue%SHOW_RES(scalarlogical)showstheGAresultsiftrue%%Output:%OPT_RTE(integerarray)isthebestroutefoundbythealgorithm%OPT_BRK(integerarray)isthelistofroutebreakpoints(thesespecifytheindices%intotherouteusedtoobtaintheindividualsalesmanroutes)%MIN_DIST(scalarfloat)isthetotaldistancetraveledbythesalesmen%%Route/BreakpointDetails:%Ifthereare10citiesand3salesmen,apossibleroute/break%combinationmightbe:rte=[56942837],brks=[37]%

IstartedthisbookwiththeintentionofbringinganewsideofSugarCRMtolight.SinceIbeganworkingatSugarCRM,Isawtheflexibilityandextensibilitythattheapplicationcouldprovide.Ilookedbackonmypreviouspositiondevelopinginternalbusinessapplications,andsawthatmanyofthefeaturesIaddedanddesignissuesIwouldwrestlewithwereproblemsthatSugarCRMhadalreadysolved.TheengineeringteamatSugarCRMhadbuilttheapplicationtosolvethisproblem,yetfewdevelopersoutsideofSugarCRMreallyknewhowpowerfultheunderlyingplatformwas.Iknewtherewereotherdevelopersinthissameboat,andthatifIcouldreachthemitwouldmaketheirjobsmucheasier.WhataCRMapplicationdoesordoesn’tdoisn’tauthoritativelydefined;instead,itsgoalistofillinthegapwhereacompanyneedstosolveproblemsintheirrelationshipswiththeircustomers.Sometimesthismeanskeepingtrackofmeetingsandphonecalls.Othertimes,thismeanstrackingtheprogressofanongoingproject.Itcouldalsomeanmanagingsupportcasesandproductdefects.Yetsometimesanapplicationmaynotcompletelycoverthis.Justaseverybusinessororganizationisunique,somustbewhatCRMwillmeantothem.UpuntilSugarCRM,thisapplicationspacewasfullofplayerswhothoughttheyhadtheCRMproblemsolved,andbuiltlargeproprietaryapplicationsthatwereexpensivetoimplementandsupportandnotoriouslydifficulttocustomizetomeettheirneeds.SugarCRMcameinandchangedthatscene,makingCRMsomethingthatisinexpensivetoimplement,easiertocustomize,andmoreapproachableforend-userstoworkwith.It’sdesignedtobeaCRMthatyouruserswon’thate,whichisthephilosophythatthefoundersofSugarCRMsetastheirparamountgoalwhenbuildingit.

4gepc核心网PS考试练习题，一、单项选择题1．当4GUE处于ECM_CONNECTED状态时，MME上维护的UE位置信息是：A.CGIB.TAIC.UnknownD.RAI2．PCRF和PCEF之间的接口是什么？A.S11B.GxC.RxD.Gxc3．以下哪个协议不需要在MME上支持？A.S1APB.GTP-CC.GTP-UD.SGsAP4．“永远在线”是4G的特点之一，这指的是当4GUE开机附着网络后，其哪段承载在开机状态下会始终存在？A.S1接口承载B.S5/S8接口承载C.S10接口承载D.S11接口承载5．4G网络中S1Release过程会使得UE的状态变成：A.ECM-IDLEB.EMM-DEREGISTEREDC.ECM-CONNECTEDD.ESM-INACTIVE6．在EPG-S中，主要用于存储和管理配置文件的分区是？A./p01B./p02C./mdD./flash7．在VoLTE中，EPC网络作为IMS的接入，负责与IMS网络进行通信的节点是：A.MMEB.SGWC.PGWD.eNodeB8．在SGSN-MME上进行截获数据包进行追踪的工具是？A.EBMB.小区映射C.ITCD.用户事件日志..................

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In2015,Yelpheldacontestinwhichitaskedparticipantstopredicttheratingofarestaurantgivenitsreview.Zhang,Zhao,andLecun(2015)simplifiedthedatasetbyconvertingthe1-and2-starratingsintoa“negative”sentimentclassandthe3-and4-starratingsintoa“positive”sentimentclass,andsplititinto560,000trainingsamplesand38,000testingsamples.

Enviro-ThecompletedynamicAAAskyandweathersolution!Veryeasysetup:Thenewmanagercomponentmakesiteasyaspossibletosetupenviroinyourscenes.IncludesEnviroLite!ThisversionincludesEnviroLiteversionaswell.Idealformulti-platformprojects:Useliteversionforlowendplatformlikemobilesandstandardforpcandconsoles.Withoneclickyoucanswitchbetweenenviroversions.ThecentralizedAPIforyourownscriptswillworkforbothversionsofcourse.ProfileSystem:Enviro'snewprofilesystemmakestweakingyourskyaseasyaspossible.Tweaksettingsinruntimeandsavetoprofile.Loadprofilesindesignandruntime.Createdifferentprofilesfordifferentscenesorshareyourconfigurationswithotheruser.Day-Nightcycle:Envirosupportsarealisticday-nightcycle.Withcorrectsunandmoonpositionswithfulllocationsupportwithlatitudeandlongitude.Youhaveoptionstouseyoursystemtimeorletenviroupdatetimebasedonrealtimeminutes.Skybox:Enviroincludesanadvancedfastatmosphericskyboxshadertogetgreatlookingskies!Yougotalotofoptionstotweaktheskyandevencansetupfunkyalienskies!Lighting:Envirowillrealisticlylightyourscenebasedonsunaltitude.Youhavecompletecontroloverlightintensityandcolorbymodifyingcurvesandgradientsrightineditor!Youalsocanchoosebetweendifferentambientlightmodesofcourse.Seasons:Envirowillchangeseasonsandgotacomponentstoswapoutgameobject,materialsandtexturesofunityterrain.Youarenotlimitedtorealisticsettings!Youcansetthestartandenddaysofeachseason.Enviroalsosupportstemperaturesimulation,basedonseason,timeofdayandcurrentweather.Clouds:Environewraymarchingcloudsystemisbasedonlatestcloudrenderingpapers.Thesewillbringyouskytolifeandofferplentyoptionstocustomize.CloudsperformanceisoptimizedbyusingtechsliketemporalreprojectionandLODsystem.Inadditiontherearealsofastflatandparticlecloudsoptionstomixoruseformaximumperformance.Fog:Needstunnishinglookingfog?Enviroincludesanadvancedlightscatteringfogimageeffectwithdistance,heightandskyfogsupport.Needfogonyourtransparentmaterial?Noproblem,withonlyafewlinesofcodeyoucouldmodifyyourowntransparentshaderstobefoggedcorrectly.Andafewparticleandtransparentshadersalreadyincludedtogetyoustarted!Weather:Enviroincludesaverypowerfullweathersystem.Youcancreateyourownweathertypesanddrivelight,sky,fogandclouds.Envirosupportsallkindofunityshurikenparticleeffectstogiveyouthefreedomtocreateanyweathereffectyoucanthinkof.Itincludes11premadeweathertypesincluding:ClearSky,cloudy,raining,stormy,snowyandfoggyweather.Youcanenablelightningstormsandchoosedifferentambientandweathersoundsforeachweatherwithsmoothtransitions.VolumetricLighting:NeedsomevolumelighteffectsyouseeinAAAgames?Noproblem,envirosupportvolumetriclightingfordirectional,pointandspotlightsoutofthebox!SceneViewEffects:Previewenviroeffectslikeclouds,volumelightingandfogdirectlywhileyouworkonyourscenes.Youcanenableordisablesceneviewpreviewforeacheffectindividualofcourse.Networking:EnvirosupportUNet,MirrorandPhotonoutofthebox.Itwillsynchronizetimeandweatherwithallyourplayers.Enviroalsogotanminimalmodeforheadlessserverstoonlycalculatetimeandweatherbutnothingmore.VirtualReality:Envirosupportsmultiandsinglepassstereoscopicrendering!TestedonOculusRift.That'snotall!Enviroincludesalotmoregreatfeatures:*Eventsystemforyougamelogic.*WeatherZones.Createasmanyzoneswiththeirownweatherforyourbiomes.*Orbitingsatellites.*VegetationGrowth.Andyoucanusealotofawesome3rd-partyassetsrightofthebox.Activateandadd3rd-partysupportthroughthenewinterface.Againitseasyandfastaspossible!*GaiaCompatible!*CTSCompatible!*AQUASIntegration!*LUXWaterIntegration!*FogVolume3Integration!*VegetationStudioProIntegration!*PlaymakerActions!*ReliefTerrainShaderIntegration!*UBERShaderIntegration!*MicroSplatIntegration!*MegaSplatShaderIntegration!*LuxShaderIntegration!*PhotonNetworkIntegration!*MirrorNetworkIntegration!*PegasusIntegration!Requirements:*Supportgammaandlinearcolorspace.*Supportforwardanddeferredrendering.*WorkingonDX9,DX11,DX12,OpenGlCore,MetalandVulkan.*VolumetricLightingrequiresatleastshader-model3.5+andwillbedeactivatedonDX9Currentlimitation:*Volumetriccloudsarecurrentlynotsuitableforfly-throughs!Willbeworkedoninlaterupdates!

Inthisuniquetext,authorsAlfriendetal.provideacoherentdiscussionofspacecraftrelativemotion,bothintheunperturbedandperturbedsettings,explainthemaincontrolapproachesforregulatingrelativesatellitedynamics,usingbothimpulsiveandcontinuousmaneuvers,andpresentthemainconstituentsrequiredforrelativenavigation.Theearlychaptersprovideafoundationuponwhichlaterdiscussionsarebuilt,makingthisacomplete,standaloneoffering.Intendedforgraduatestudents,professorsandacademicresearchersinthefieldsofaerospaceandmechanicalengineering,mathematics,astronomyandastrophysics,SpacecraftFormationFlyingisatechnicalyetaccessible,forward-thinkingguidetothiscriticalareaofastrodynamics.Thefirstbookdedicatedtospacecraftformationflying,writtenbyleadingresearchersandprofessorsinthefieldDevelopsthetheoryfromanastrodynamicalviewpoint,emphasizingmodeling,controlandnavigationofformationflyingsatellitesonEarthorbitsExamplesusedtoillustratethemaindevelopments,withasamplesimulationofaformationflyingmissionincludedtoillustratehighfidelitymodeling,controlandrelativenavigation

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。