OptimalEstimationofDynamicSystems,SecondEditionhighlightstheimportanceofbothphysicalandnumericalmodelinginsolvingdynamics-basedestimationproblemsfoundinengineeringsystems.Accessibletoengineeringstudents,appliedmathematicians,andpracticingengineers,thetextpresentsthecentralconceptsandmethodsofoptimalestimationtheoryandappliesthemethodstoproblemswithvaryingdegreesofanalyticalandnumericaldifficulty.Differentapproachesareoftencomparedtoshowtheirabsoluteandrelativeutility.Theauthorsalsoofferprototypealgorithmstostimulatethedevelopmentandproperuseofefficientcomputerprograms.MATLAB(R)codesfortheexamplesareavailableonthebook'swebsite.NewtotheSecondEditionWithmorethan100pagesofnewmaterial,thisreorganizededitionexpandsuponthebest-sellingoriginaltoincludecomprehensivedevelopmentsandupdates.Itincorporatesnewtheoreticalresults,anentirelynewchapteronadvancedsequentialstateestimation,andadditionalexamplesandexercises.Anidealself-studyguideforpracticingengineersaswellasseniorundergraduateandbeginninggraduatestudents,thebookintroducesthefundamentalsofestimationandhelpsnewcomerstounderstandtherelationshipsbetweentheestimationandmodelingofdynamicalsystems.Italsoillustratestheapplicationofthetheorytoreal-worldsituations,suchasspacecraftattitudedetermination,GPSnavigation,orbitdetermination,andaircrafttracking.

国际ISOIEC20000标准的最新中文版，4月15日正式发布，此为中文版

关于nfc测试方法的标准、初始化和防冲突、射频功耗和信号端口的标准。

SpikingNeuronModels:Neuronsinthebraincommunicatebyshortelectricalpulses,theso-calledactionpotentialsorspikes.Howcanweunderstandtheprocessofspikegeneration?Howcanweunderstandinformationtransmissionbyneurons?Whathappensifthousandsofneuronsarecoupledtogetherinaseeminglyrandomnetwork?Howdoesthenetworkconnectivitydeterminetheactivitypatterns?And,viceversa,howdoesthespikeactivityinfluencetheconnectivitypattern?Thesequestionsareaddressedinthisintroductorytextaimedatthosetakingcoursesincomputationalneuroscience,theoreticalbiology,neuronalmodeling,biophysics,orneuralnetworks.Theauthorsfocusonphenomenologicalapproachessothatbeginnerscangettogripswiththetheoreticalconceptsbeforeconfrontingthewealthofdetailinbiologicalsystems.ThebookisinthreePartsdealing,inorder,withneuronsandconnections,collectivebehaviorinnetworks,andsynapticplasticityanditsroleinlearning,memory,anddevelopment.Eachchapterendswithaliteraturesurvey,andacomprehensivebibliographyisincluded.Assuchthebookwillalsointroducereaderstocurrentresearch.

ISO29134个人信息保护标准，是ISO个人信息保护系列标准之一。

Don'tMakeMeThink第3版英文版文字版全彩色觉得好请留评论DontmakemeThinkRevisitedACommonSenseapproachtoWebUsabilityCopyrighto2014SteveKrugNewriderswww.newniders.comToreporterrorspleasesendanotetoerrata@peachpit.comNewridersisanimprintofpeachpitadivisionofpearsoneducationEditor:ElisabethbayleProjecteditor:NancyDavisProductioneditor:lisabraziealCopyEditorBarbaraFlanaganInteriorDesignandComposition:RomneyLangeIllustrationsbymarkMatchaandMimiHeftFarnhamfontsprovidedbyTheFontbureauInc.(www.fontbureau.comNoticeofRightsAllrightsreservedNopartofthisbookmaybereproducedortransmittedinanyformbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofthepublisher.Forinformationongettingpermissionforreprintsandexcerpts,contactpermissions@peachpit.comNoticeofliabilityTheinformationinthisbookisdistributedonan"asisbasiswithoutwarranty.whilileeveryprecautionhasbeentakeninthepreparationofthebook,neithertheauthornorPeachpitshallhaveanyliabilitytoanypersonorentitywithrespecttoanylossordamagecausedorallegedtobecauseddirectlyorindirectlybytheinstructionscontainedinthisbookorbythecomputersoftwareandhardwareproductsdescribedinittrademarksItsnotrocketsurgeryisatrademarkofStevekrugManyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthisbook,andpeachpitwasawareofatrademarkclaim,thedesignationsappearasrequestedbytheownerofthetrademark.allotherproductnamesandservicesidentifiedthroughoutthisbookareusedineditorialfashiononlyandforthebenefitofsuchcompanieswithnointentionofinfringementofthetrademark.Nosuchuse,ortheuseofanytradename,isintendedtoconveyendorsementorotheraffiliationwiththisbookISBN-13:978-0-32196551-6ISBN-10:0-321-96551-5987654321PrintedandboundintheunitedstatesofamericaFirsteditionTomyfather,whoalwayswantedmetowriteabook,Mymother,whoalwaysmademefeellikeIcouldMelanie,whomarriedme-thegreateststrokeofgoodfortuneofmylifeandmyson,Harry,whowillsurelywritebooksmuchbetterthanthisonewheneverhewantstoSecondeditionTomybigbrother,Phil,whowasamenschhiswholelifeThirdeditionToallthepeoplefromallpartsoftheworld--whohavebeensoniceaboutthisbookforfourteenyears.Yourkindwords--inperson,inemail,andinyourblogs-havebeenoneofthegreatjoysofmylifeEspeciallythewomanwhosaiditmadeherlaughsohardthatmilkcameoutheofhernoseContentsPREFACEAboutthiseditionINTRODUCTIONReadmefirstThroatclearinganddisclaimersGUIDINGPRINCIPLESCHAPTER1Dontmakemethink!Krug'sFirstLawofusabilityCHAPTER2HowwereallyusethewebScanning,satisficing,andmuddlingthroughCHAPTER3.BillboardDesign101Designingforscanning,notreadingCHAPTER4.AnimaL,Vegetable,orMineral?WhyuserslikemindlesschoicesCHAPTER5OmitneedlesswordsTheartofnotwritingfortheWebTHINGSYOUNEEDTOGETRIGHTCHAPTER6.StreetsignsandBreadcrumbsDesigningnavigationCHAPTERZTheBigBangTheoryofWebDesignTheimportanceofgettingpeopleoffontherightfootMAKINGSUREYOUGOTTHEMRIGHTCHAPTER8Thefarmerandthecowmanshouldbefriends>Whymostargumentsaboutusabilityareawasteoftime,andhowtoavoidthemChAPTER9.USabilitytestingon10centsadayKeepingtestingsimple--soyoudoenoughofitLARGERCONCERNSANDOUTSIDEINFLUENCESCHAPTER10MObile:It'snotjustacityinAlabamaanymoreWelcometothe21stCentury.YoumayexperienceaslightsenseofvertigoCHAPTER11UsabilityascommoncourtesyWhyyourWebsiteshouldbeamenschCHAPTER12.AccessibilityandyouJustwhenyouthinkyouredone,acatfloatsbywithbutteredtoaststrappedtoitsbackCHAPTER13GuidefortheperplexedMakingusabilityhappenwhereyouliveAcknowledgmentsIndexPreface:aboutthiseditionPeoplecomeandgosoquicklyhere!DOROTHYGALEJUDYGARLAND)INTHEWIZARDOFOZ(1939)Iwrotethefirsteditionofdon'tmakemethinkbackin2000By2002,Ibegantogetafewemailsayearfromreadersasking(verypolitely)ifI'dthoughtaboutupdatingit.Notcomplaining,justtryingtobehelpful."alotoftheexamplesareoutofdate"wastheusualcommentMystandardresponsewastopointoutthatsinceiwroteitrightaroundthetimetheinternetbubbleburstmanyofthesitesiusedasexampleshadalreadydisappearedbythetimeitwaspublishedButIdidn'tthinkthatmadetheexamplesanylessclear.Finally,in2006Ihadastrongpersonalincentivetoupdateit.ButasIrereadittoseewhatIshouldchange,Ijustkeptthinking"Thisisallstilltrue>Ireallycouldn'tfindmuchofanythingthatithoughtshouldbechangedHalfoftheroyaltiesforthebookweregoingtoacompanythatnolongerexisted,anddoinganeweditionmeantanewcontractandtwicetheroyalties-formeIfitwasanewedition,though,somethinghadtobedifferent.SoIaddedthreechaptersthatididn'thavetimetofinishbackin2000,hitthesnoozebutton,andhappilypulledthecoversbackovermyheadforanothersevenyearsSteveKrugACommonSenseApproachtoWebUsabilityFOREWORDBYROGERBLACK2000SteveKrugTHINKACommonSenseApproachtoWebUsabilitySECONDEDITION2006WRitingisreallyhardforme,andI'malwayshappytohaveareasonnottodoit.GivemeagoodoldrootcanaloverwritinganydaySowhynowfinallyanewedition?Tworeasons#1。
Let’sfaceit:It'soldThere'snodoubtaboutitatthispoint:Itfeelsdated.Afterall,it'sthirteenyearsold,whichislikeahundredyearsinInternettime.(See?Nobodyevensaysthingslike"inInternettimeanymoreMostofthewebpagesiusedforexamples,likeSenatorOrrinHatch'scampaignsiteforthe2000electionlookreallyold-fashionednowSitesthesedaystendtolookalotmoresophisticated,asyoumightexpectPRENIDEN'TWWw.\TOCiTheRepublicans:ANewHampshireForumTheDec2DebateThefirstakeahddyeGoPdebyetesThursdayheatsupthepoltcalstylewarsaSenatorHatchfightstokeepsubstancenCampaign2000.EVLLSTORYTheExperiencedCandidateLw警mHatchCampaign2000BeneoiceThatMatters!ClickheretoCONTRIBUTECAMPAIGNNEWSlIVESCONTIRIHIUTORLINTsCOILINKS)LUNTEEILThieRar4每MCICK2cpM(.DisHachPre的d时Ceme,ntP0.00多』LC,UT0403nTERNETANDNTwoRxsaunaSwww.orrinhatch.com1999

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

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Mega-Fiers_2.44.unitypackageScrubbingtimevalueonPointCachemodifierwillnowupdatemeshifanimateisturnedoff.Addedoptiontomorphinspectortoshowmappingdatasoincaseoffailuresitcanhelpshowwhattheissueis.Tolerancevalueaddedtoinspector,forsomeverylargemesheswithmorphsyoumayneedtoincreasethisvalue.FixederrorintheBlenderexporterifyourmorphhadnoanimations.FixedMax2013and2014morphexporters,werecrashingonprogressivemorphtargets.FixedmissingnamesonprogressivemorphtargetsonMax2013and14exporters.FixedmissingfirsttargetpercentvalueinprogressivemorphswhenusingMax2013and14exporters.Mayaexporterupdatedsoonlyselectedblendshapeisexportedinsteadofallblendshapes.

%Time-FrequencyToolbox.%Version1.0January1996%Copyright(c)1994-96byCNRS(France)-RICEUniversity(USA).%%SignalGenerationFiles%%sigmerge-AddtwosignalswithgivenenergyratioindB.%%ChoiceoftheInstantaneousAmplitude%amexpo1s-Generateone-sidedexponentialamplitudemodulation.%amexpo2s-Generatebilateralexponentialamplitudemodulation.%amgauss-Generategaussianamplitudemodulation.%amrect-Generaterectangularamplitudemodulation.%amtriang-Generatetriangularamplitudemodulation.%%ChoiceoftheInstantaneousFrequency%fmconst-Signalwithconstantfrequencymodulation.%fmhyp-Signalwithhyperbolicfrequencymodulation.%fmlin-Signalwithlinearfrequencymodulation.%fmodany-Signalwitharbitraryfrequencymodulation.%fmpar-Signalwithparabolicfrequencymodulation.%fmpower-Signalwithpower-lawfrequencymodulation.%fmsin-Signalwithsinusoidalfrequencymodulation.%gdpower-Signalwithapower-lawgroupdelay.%%ChoiceofParticularSignals%altes-Altessignalintimedomain.%anaask-AmplitudeShiftKeyed(ASK)signal.%anabpsk-BinaryPhaseShiftKeyed(BPSK)signal.%anafsk-FrequencyShiftKeyed(FSK)signal.%anapulse-Analyticprojectionofunitamplitudeimpulsesignal.%anaqpsk-QuaternaryPhaseShiftKeyed(QPSK)signal.%anasing-Lipschitzsingularity.%anastep-Analyticprojectionofunitstepsignal.%atoms-LinearcombinationofelementaryGaussianwavepackets.%dopnoise-GeneratecomplexDopplerrandomsignal.%doppler-GeneratecomplexDopplersignal.%klauder-Klauderwaveletintimedomain.%mexhat-Mexicanhatwaveletintimedomain.%tftb_window-Windowgeneration(previouslywindow.m).%%AdditionofNoise%noisecg-Analyticcomplexgaussiannoise.%noisecu-Analyticcomplexuniformnoise.%%Modification%s

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。