简介：Thispaperaimsatassessinghowlocation-basedmobilesupportsystemscansupportsalespersons'CRMeffortswhentheyareoperatingwithinahighlymobileworkenvironment.Afterbrieflydiscussingthestate-of-the-artissuesassociatedwithmobilelocationtechnologies,thepaperconceptualizeskeydimensionsforlocation-basedmobilesupportsystems.ThepaperthendiscussesthedualroleofsalespersonsinCRM.Afourthsectionsuggestsacategorizationofsalespersons'CRMtasksbasedonbothpropertiesoflocation-basedmobilesupportandtheareasofsalespersons'CRM-relatedtasksthatmaybeaffectedbymobilelocationtechnologies.Finally,thepapersuggestspotentialmobilelocationservicesandapplicationsthatcanhelpsalespersonsperformeffectivelytheireverydayCRMtasksandlinksuchapplicationstothedeterminantofsalespersons'performance.Thepaperconcludeswithadiscussionofsomecriticalissuesandsuggestsareasforfurtherresearch.

简介：基于地点的服务(磅)，一家新兴的新企业基于smartphone和活动网络，正在变得越来越流行。然而，没有给股东机会起一个活跃作用，大多数这些LBS仅仅提供非无缝的室内/室外的应用程序和简单应用程序。我们的特定的目的是解决这些问题。这份报纸论述概念由扩展开的地点服务接口标准(OpenLS)允许无缝的室内/室外的放并且扩大服务的内容包括股东推荐的信息解决这些问题。

简介：Acombinationoflight-emittingdiode(LED)identificationandatime-divisionmultiplexingschemeisproposedinthisLetterforindoorlocation-basedservice.Withthescheme,thearrangementofwhiteLEDlampsandthestructureofadataframearedesignedtorealizehigh-accuracyindoorpositioningandlocation-basedpayloaddatatransmissionsimultaneously.Theresultsoftheexperimentdemonstratethattheindoorpositioningaccuracyis10cmand2Mb/sdatatransmissionwithhighsignalqualityisrealized.

简介：Usinglinearinterpolationmethod,VIREalgorithmsimplytreatsthesignalstrengthvalueanddistanceofthereferencetagasalinearrelationship,leadingtotheinaccuracyofsignalstrengthvalueforvirtualreferencetags.ThethresholdinVIREalgorithmisafixedvaluethatneedsrepeatedlyadjustmentthroughexperiments,whichresultsinthecomplicatedalgorithm.Tosolvetheseproblems,animprovedalgorithmisproposedinthispaper,includingnonlinearinterpolationalgorithm,dynamicthresholdsettingandtagself-correctionoffuzzymap,whichbuildsanindoorpositioningsystembasedonreferencetags.Theexperimentalresultsshowthattheimprovedalgorithmcanimprovethepositioningaccuracyandimprovethestabilityofpositioningresultsunderbadenvironmentalconditionswithoutincreasingthenumberofreferencetags.

简介：Thepaperdescribesatexture-basedfasttextlocationschemewhichoperatesdirectlyintheDiscreteWaveletTransform(DWT)domain.Bythedistinguishingtexturecharacteristicsencodedinwavelettransformdomain,thetextisfastdetectedfromcomplexbackgroundimagesstoredinthecompressedformatsuchasJPEG2000withoutfulldecompress.Comparedwithsometraditionalcharacterlocationmethods,theproposedschemehastheadvantagesoflowcomputationalcost,robusttosizeandfontofcharactersandhighaccuracy.Preliminaryexperimentalresultsshowthattheproposedschemeisefficientandeffective.

简介：SupportVectorMachine(SVM)isapowerfulmethodologyforsolvingproblemsinnon-linearclassification,functionestimationanddensityestimation,whichhasalsoledtomanyotherrecentdevelopmentsinkernelbasedmethodsingeneral.Thispaperpresentsahighaccuracyandfault-tolerantSVMforthemobilegeo-locationproblem,whichisanimportantcomponentofpervasivecomputing.Simulationresultsshowitsbasiclocationperformance,andillustrateimpactsofthenumberoftrainingsamplesandtrainingareaontestlocationerror.

简介：CausedbyNon-Line-Of-Sight(NLOS)propagationeffect,thenon-symmetriccontaminationofmeasuredTimeOfArrival(TOA)dataleadstohighinaccuraciesoftheconventionalTOAbasedmobilelocationtechniques.RobustpositionestimationmethodbasedonbootstrappingM-estimationandHuberestimatorareproposedtomitigatetheeffectsofNLOSpropagationonthelocationerror.SimulationresultsshowtheimprovementovertraditionalLeast-Square(LS)algorithmonlocationaccuracyunderdifferentchannelenvironments.

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简介：Timeefficiencyofkeyestablishmentandupdateisoneofthemajorproblemscontributorykeymanagementsstrivetoaddress.Toachievebettertimeefficiencyinkeyestablishment,weproposeaLocation-basedHuffman(L-Huffman)scheme.First,usersareseparatedintoseveralsmallgroupstominimizecommunicationcostwhentheyaredistributedoverlargenetworks.Second,bothuser'scomputationdifferenceandmessagetransmissiondelayaretakenintoconsiderationwhenHuffmancodingisemployedtoformingtheoptimalkeytree.Third,thecombinedweightsinHuffmantreearelocatedinahigherplaceofthekeytreetoreducethevarianceoftheaveragekeygenerationtimeandminimizethelongestkeygenerationtime.SimulationsdemonstratethatL-HuffmanhasmuchbetterperformanceinwideareanetworksandisalittlebetterinlocalareanetworkthanHuffmanscheme.

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简介：Non-destructivetesting(NDT)hasbeenwidelyusedinmanyfields,wecaneasilyseeitisbeingusedinshipbuilding,aerospace,weaponsmanufacturingandsoon.ICTisoneofthebestnondestructivetestingmethodscurrently,butithasnotbeenusedwidely,becauseitrequiresmuchcomputeandcostsmuchtime.Defectlocationisoneofthemostimportantprocessingstepsinthedigitalimageanalysis.Defectlocationwouldcorrespondinglyreducethetimespentinthetesting.Wemayonlyrequirelocatingthedefectsinsomecase.So,wedividetheCTimagesintoseverallittleblockswhichthesquareisequal,andthencalculatethefractaloneachblock.Bydeterminingthevalueandconnectedregionnumberofthefractaldimension,wecanlocatedefectsoftheimage.Theresultsshowthattheblockfractaldimensionisausefulandtime-savingdefectlocationmethod.

简介：Thewidespreadoflocation-basedsocialnetworksbringsaboutahugevolumeofusercheck-indata,whichfacilitatestherecommendationofpointsofinterest（POIs）.Recentadvancesondistributedrepresentationshedlightonlearninglowdimensionaldensevectorstoalleviatethedatasparsityproblem.CurrentstudiesonrepresentationlearningforPOIrecommendationembedbothusersandPOIsinacommonlatentspace,andusers＇preferenceisinferredbasedonthedistance/similaritybetweenauserandaPOI.SuchanapproachisnotinaccordancewiththesemanticsofusersandPOIsastheyareinherentlydifferentobjects.Inthispaper,wepresentanoveltranslation-based,timeandlocationaware（TransTL）representation,whichmodelsthespatialandtemporalinformationasarelationshipconnectingusersandPOIs.Ourmodelgeneralizestherecentadvancesinknowledgegraphembedding.Thebasicideaisthattheembeddingofa〈time,location〉paircorrespondstoatranslationfromembeddingsofuserstoPOIs.SincethePOIembeddingshouldbeclosetotheuserembeddingplustherelationshipvector,therecommendationcanbeperformedbyselectingthetop-kPOIssimilartothetranslatedPOI,whichareallofthesametypeofobjects.Weconductextensiveexperimentsontworeal-worlddata.sets.TheresultsdemonstratethatourTransTLmodelachievesthestate-of-the-artperformance.Itisalsomuchmorerobusttodatasparsitythanthebaselines.

简介：超声(美国)挥动察觉和声学的排出物(AE)线性地点系统被建议，它作为美国波浪传感器采用纤维布拉格栅栏(FBG)。在理论分析，对纵的美国波浪的FBG传感器反应被调查。当栅栏长度比美国波长短得多时，结果显示FBG波长能作为静态的大小写被调制。标准正弦曲线和锭子波浪测试的试验性的结果与产生信号同意很好。为认识到线性地点也被完成用二FBG推进研究。最大的线性地点错误作为不到5公里被获得。基于FBG的美国波浪传感器和AE线性地点为特定的要求提供有用工具。

简介：Thispaperproposesaneffectivemethodoffaultlocationbasedonabinarytreeforopticalburstswitching(OBS)network.Tominimizethemonitoringcost,wedividethenetworkintoseveralmonitordomainsbyintroducingmonitoring-cyclealgorithms.Inordertogenerateanexclusivecode,wemodifythemonitoringcyclealgorithmwhentwonodeshavethesamecode.Throughthebinarytreealgorithm,apre-computationoffaultsintheOBSnetworkcanbeachieved.Whenafaulthappens,wecanlocateitimmediatelyandaccurately.Exampleshaveprovedthatthealgorithmhasgeneralapplicability.

简介：Anewformulawaspresentedforlocatingdoublebondpositionindodecenols,tetrade-cenols,hexadecenolsandtheiracetates,basedonmassspectraldataofdimethyldisulfidederivatives.Inthisprocedure,molecularionandbasepeakionwereutilizedascharacteristicparameterstoidentifythepositionalisomers.Themethodwastestedwithmassspectraof25dimethyldisulfldederivativesofmono-unsaturatedacetatesandalcohols,andtheoriginaldouble-bondpositionineachisomerwaslocatedunambiguously.

简介：Thetwo-echeloninventorysystemconsideredinthisworkisbasedononesinglesupplier,multipledistributioncenters,andmultipleretailers.Ineachechelonsafetyinventoryiscentralizedstoredinseveralcentralizedstoragecentersandlateraltransshipmentofsafetystockispermittedbetweencentralizedstoragesiteandnon-centralizedstoragesites.Theinventorypositioningandlocationdecisionmodeldevelopedfocusesonsafetystockcost,lateraltransshipmentcost,transportationcost,constructioncostandshortagecostinmulti-echelonsupplychain.Numericalexperimentsshowthat:nomatterwhetherintheechelonofdistributioncentersorretailersthefactorswhichaffecttheselectionfromonesinglecentralizedstoragecenterormultiplecentralizedstoragecentersaredistancebetweendistributioncentersorretailers,unittransshipmentcostandunitinventorycarryingcost.

简介：InthispaperweextendEnestrom-Kakeyatheoremtoalargeclassofpolynomialswithcomplexcoefficientsbyputtinglessrestrictionsonthecoefficients.Ourresultsgeneraliseandextendmanyknownresultsinthisdirection.

简介：Thispaperthoroughlyinvestigatestheproblemofrobotself-locationbylinecorrespondences.Theoriginalcontributionsarethree-fold:(1)Obtainthenecessaryandsufficientconditiontodeterminelinearlytherobot'sposebytwolinecorrespondences.(2)Showthatifthespacelinesareverticalones,itisimpossibletodeterminelinearlytherobot'sposenomatterhowmanylinecorrespondenceswehave,andtheminimumnumberoflinecorrespondencesis3todetermineuniquely(butnon-linearly)therobot'spose.(3)Showthatifthespacelinesarehorizontalones,theminimumnumberoflinecorrespondencesis3forlineardeterminationand2fornon-lineardeterminationoftherobot'spose.

简介：你的方位感是否很强？当你寻找一个地方却找不到时，是询问当地人，警察还是借助于地图呢？看来，在平时学习一些必要的表示方位或方向的日常用语是非常必要的。

简介：这篇论文讨论与不同费用和界限限制在一棵树上限制的反的中心地点问题。作者首先证明这个问题能作为一系列组合线性节目被提出，然后O(∣V∣2木头∣V∣)解决这个问题的时间算法被介绍。为相等的费用盒子，作者进一步给O(∣V∣)时间算法。