简介：

简介：

简介：Generallyadatabaseencompassesvariouskindsofknowledgeandissharedbymanyusers.Differentusersmaypreferdifferentkindsofknowledge.Soitisimportantforadataminingalgorithmtooutputspecificknowledgeaccordingtousers'currentrequire-ments(preference).Wecallthiskindofdataminingrequirement-orientedknowledgediscovery(ROKD).Whentheroughsettheoryisusedindatamining,theROKDproblemishowtofindareductandcorrespondingrulesinterestingfortheuser.Sincereductsandrulesaregeneratedinthesameway,thispaperonlyconcernswithhowtofindaparticularreduct.Theuser'srequirementisdescribedbyanorderofattributes,calledattributeorder,whichimpliestheim-portanceofattributesfortheuser.Intheorder,moreimportantattributesarelocatedbeforelessimportantones.Thentheproblembecomeshowtofindareductincludingthoseattributesanteriorintheattributeorder.Anapproachtodealingwithsuchaproblemisproposed.Anditscompletenessforreductisproved.Afterthat,threekindsofattributeorderaredevelopedtodescribevarioususerrequirements.

简介：AsreportedfromafieldseminaronMJAon-linecoalcompositiondetectionsystem,NDRChasrankedtheMJAsystemwiththekeyandspecialprojectsofciviliannon-powernucleartechnologyindustrialization.MJAdevicedevelopedindependentlybyNanjingDaluZhongdianTechnologyCo.,Ltd.isthefirstfullcoalflow,all-elementandall-indextypeofon-linedetectionsystem.Itwassuccessfullyusedforincomingcoaldetectionofpowerplants.

简介：

简介：Customers'satisfactionwithservicesisreflectedbyqualityofexperience(QoE).Insofar,moststudiesoncooperativecommunicationhavebeenfocusedonimprovingtheQoEofsourceusers.However,theimprovementofasourceuser'sQoEisobtainedatcostofdegradationoftherelayuser'sQoE.Ontheotherhand,cooperativecommunicationscanachieveperformancesimilartothatofaconventionalmultiple-inputmultiple-output(MIMO)systembyformingvirtualMIMOarrays.Hence,toimprovetheQoEperformanceofrelayusers,thisarticleproposestheconceptofabeliefthresholdatthedestinationuserandanewcooperativeschemebasedonthebeliefthresholddestination(BTD)technique,whilewithoutdecayingtheBERperformanceofthecommunicationsystem.

简介：

简介：investmentofthistypeofbusinessisnotcomplex.Hence,thesurvivalofthistypeofbusinessisnoteasilyguaranteedbecauseofnotonlyhighcompetitivenessbutalsounclearinformationfromtheuserside.Entrepreneursofcoworkingspacesneedtounderstandthecharacteristicsandperspectivesofuserswhichmaydifferinvariousregionsandcultures.Thisresearchinvestigatedtheusersofcoworkingspacesintermsoftheircharacteristics,behaviors,andperspectives.ThescopefocusedoncoworkingspaceslocatingonorclosedtothemasstraintransitstationsofCBDBangkok.Theresearchappliedquantitativeapproachthroughquestionnairesurveyswith300respondentsduringNovember,2017.Therearemanyinterestingresultsfoundfromtheanalysisandsomehowdifferfrompaststudies.Themajorityofrespondentswereyoungerthan25yearsoldwhowerestudents.However,aquarterofthosewere“CorporateEmployee”.Coffeeshopwasthetopplacetoworkoutsideownoffice,secondedbycoworkingspaces.Thebehaviorsofthemajorityoftherespondentsincluded:80%visitedcoworkingspacesatleastoneaweekandalmosthalfvisited3-4timesaweek;theyspentatleastthreehourspervisitandabout15%spentlongerthansixhours.Theperspectivesofmostrespondentswereusedcoworkingspacestoincreaseproductivityandchoseaplacebasedonlocation.Theresultscallforfurtheranalysisandstudies.

简介：

简介：

简介：因此我们可以将所有用户的IE缓存文件都放入同一个文件夹中,如果将每个用户访问网上邻居的快捷方式都保存到指定的文件夹中,Vista中此文件夹较前几代系统有了很多潜在的修改

简介：

简介：AllwatermarksaresharedintoshadowimagesusingVCS(VisualCryptographyScheme).Onlyonespecificshadow(asanewwatermark)isembeddedintothehostsignalandtheotheronesaredistributedtoeveryuserineachgroupasakey.Inthewatermarkingextractionprocedure,usersindifferentgroupcanobtaindifferentwatermarkbycombiningtheirshadowswiththeextractedonefromthewatermarkedsignal.Analysisandexperimentalresultsshowthatthenewwatermarkingmethodisnovel,secureandrobust.

简介：

简介：

简介：Asusersincreasinglybefriendothersandinteractonlineviatheirsocialmediaaccounts,onlinesocialnetworks(OSNs)areexpandingrapidly.Confrontedwiththebigdatageneratedbyusers,itisimperativethatdatastoragebedistributed,scalable,andcost-efficient.Yetoneofthemostsignificantchallengesaboutthistopicisdetermininghowtominimizethecostwithoutdeterioratingsystemperformance.Althoughmanystoragesystemsusethedistributedkeyvaluestore,itcannotbedirectlyappliedtoOSNstoragesystems.Andbecauseusers'dataarehighlycorrelated,hashstorageleadstofrequentinter-servercommunications,andthehighinter-servertrafficcostsdecreasetheOSNstoragesystem'sscalability.Previousstudiesproposedconductingnetworkpartitioninganddatareplicationbasedonsocialgraphs.However,datareplicationincreasesstoragecostsandimpactstrafficcosts.Here,weconsiderhowtominimizecostsfromtheperspectiveofdatastorage,bycombiningpartitioningandreplication.Ourcost-efficientdatastorageapproachsupportsscalableOSNstoragesystems.Theproposedapproachco-locatesfrequentlyinteractiveuserstogetherbyconductingpartitioningandreplicationsimultaneouslywhilemeetingload-balancingconstraints.Extensiveexperimentsareundertakenontworeal-worldtraces,andtheresultsshowthatourapproachachieveslowercostcomparedwithstate-of-the-artapproaches.ThusweconcludethatourapproachenableseconomicandscalableOSNdatastorage.

简介：在认知无线电(CR)系统，察觉到的有效光谱保证第二等的用户(苏)成功地存取光谱洞。典型地，察觉问题从传播策略的优化独立被考虑了。在实践，由于失误察觉和虚惊的非零可能性，然而，察觉到的阶段影响产量象在主要用户(PU)的传播上一样怀疑。在这份报纸，用精力察觉，我们最大化全部的产量由联合在multibandCR系统优化察觉阀值和传播策略怀疑。一套重复基于算法被建议解决这个混合整数编程问题，它与IEEE802.22标准建议的一致察觉阀值选择算法相比显示出更好的性能。

简介：TheobjectiveofthisstudyistoexploreapotentiallyeffectivetrainingmethodforthehospitalprofessionalstoeducatedrugusersandtoenhancetheirknowledgeofHIVinfection.Onehundredandsixtyonesubjects,whocamefrom13differentprovincesandwereadmittedinadrugreliefhospitalinBeijing,wererecruitedforthisstudy.Theaverageageofthesesubjectswas35.21±6.24yearold.Theaveragenumbersofyearsfordrugaddictionwere7years,andtheaveragenumbersofdrugrelieftreatmentreceivedinthepastwas5.5times.ThelevelofAIDSknowledgeofthesesubjects,includingpathogenicfactors,sourceofinfection,routeoftransmissionandpreventivemeasures,wereevaluatedbeforeandafterreceivingtheAIDSeducationaltrainingtothesedrugusers.Ourresultsshowedthattherewasastatisticallysignificantincrease(P＜0.01)intheknowledgeofHIVinfectionandpreventionamongthesesubjects.PositiveattitudeandbehavioraltendenciestowardHIVpreventionwerealsoimproved.Therefore,itisimperativeforthemedicalprofessionalstoincorporateAIDSeducationintodrugrelieftreatmenttoachievethemaximumeffectontheknowledgeofAIDSandimprovementofpositiveattitudesandbehaviorstowardHIVpreventionamongdrugusers.

简介：Electricallyevokedcompoundactionpotential(eCAP)amplitudeselicitedatsuprathresholdlevelswereassessedasameasureoftheeffectivenessofcochlearimplant(CI)stimulation.Twenty-oneindividualsparticipated;onewasexcludedduetofacialstimulationduringeCAPtesting.Foreachparticipant,eCAPswereelicitedwithstimulationfromsevenelectrodesneartheupperlimitoftheindividual'selectricaldynamicrange.Areduced-channelCIprogramwascreatedusingthosesamesevenelectrodes,andparticipantsperformedavoweldiscriminationtask.Consistentwithpreviousreports,eCAPamplitudesvariedacrosstestedelectrodes;theprofileswereuniquetoeachindividual.In6subjects(30%),eCAPamplitudevariabilitywaspartiallyexplainedbytheimpedanceoftherecordingelectrode.Theremainingamplitudevariabilitywithinsubjects,andthevariabilityobservedacrosssubjectscouldnotbeexplainedbyrecordingelectrodeimpedance.Thisimpliesthatotherunderlyingfactors,suchasvariationsinneuralstatusacrossthearray,areresponsible.Across-sitemeaneCAPamplitudewassignificantlycorrelatedwithvoweldiscriminationscores(r2?0.56).AsingleeCAPamplitudemeasuredfromthemiddleofthearraywasalsosignificantlycorrelatedwithvoweldiscrimination,butthecorrelationwasweaker(r2?0.37),thoughnotstatisticallydifferentfromtheacrosssitemean.NormalizingeacheCAPamplitudebyitsassociatedrecordingelectrodeimpedancedidnotimprovethecorrelationwithvoweldiscrimination(r2?0.52).FurtherworkisneededtoassesswhethercombiningeCAPamplitudewithothermeasuresoftheelectrode-neuralinterfaceand/orwithmorecentralmeasuresofauditoryfunctionprovidesamorecompletepictureofauditoryfunctioninCIrecipients.

简介：认知无线电是为在最近的年里补救光谱资源的缺乏的一种新聪明的无线通讯技术。当他们与主要用户一起分享可得到的光谱时，当价格是在光谱分配的一个重要因素时，第二等的用户不得不付钱。基于游戏理论，一个改进定价函数被考虑主要用户的期望建议。在这篇文章，期望代表与主要用户一起分享光谱的确实。由介绍确实，定价不仅变得不同因为不同第二等的用户，而且罐头根据确实被调整。新用途功能的纳什平衡存在，这被证明。模拟结果证明分享的光谱不能被第二等的用户的隧道质量仅仅决定，而且能根据主要用户的期望被改编。而且，建议算法改进分享的公平。