简介:TheU.S.election2004finallyconcluded.BushdefeatedKerryandwasre-electedU.S.President,thoughafterfiercecompetition.WhatglobalstrategyandforeignpolicywillBushtakeinhissecondtermbecomesthesubjectthatishotlydiscussed.InBush'sfirstterm,U.S.governmentunderwentthe9/11terroristevents.Afterwards,theBushadministrationlinkedanti-terrorismwithoverthrowingSaddam.Withoutampleevidence,AmericalaunchedwaragainstIraqdespiteoppositionofmajormemberstatesoftheUNSecurityCouncil,revealingitsclearconservatistinclinationandseriousunilateralact.ConsequentlyitispredictedthatBushwillcontinuesuchapolicyinhissecondtermandevengofurtheraway.However,withregardtotheoverallsituation,Bushwillpartlyrestricthisextremelyseriousunilateralpolicyandreturntoanintermediatepolicytosomeextent.Thisisrevealedinthefollowingfeatures.
简介:CentralCommitteeoftheCommunistPartyofChinaandtheStateCouncilrecentlyissued'OpiniononadjustmentandImprovementoffertilitypolicies'.Itexplicatesthesignificanceandoverallthinkingforadjustmentoffertilitypolicies,demandsforadheranceofthebasicnationalpolicyoffamilyplanningandpromotionofalltherelatedworksteadily,firmlyandorderly.
简介:Closescrutinyintoworldeconomyrevealsafreshpicture,inwhichdevelopedcountrieshavesteppedoutofthegloomyeconomicrecessionoftheearlynineties;developingcountrieshaveextricatedthemselvesfromthepredicamentofthe“lostdecade”oftheeighties;EasternEuropeancountriesundereconomictransformationareshowingsignsofrevivalafteradropintoeconomictrough;an-
简介:Athorough-goingchangeineconomicdevelopmentmodeiscrucialtothesolu-tionoftheknottyworldeconomy.Theworld’strendintheninetiesistoseeka“sustainabledevelopment”.Theyear1992winessedtheconvocationoftheUnitedNationsConferenceonEnvironmentandDevelopment;theUnitedNaitonsPopulationConferencewasconvenedin1994;andinMarch1995,theU-nitedNationsWorldSummitonSocialDevelopmentwasheldinCopenhagen.All
简介:Inpracticalparameterestimation,wehavealwayschoseneitherLeastSquaresEstimation(LSE)orRobustEstimation.Sincethedistributionofobservationsisunknown,toselectacorrectestimationmethodisverydifficult.Itiswellknownthatifobservationsincludegrosserrors,theresultofLSEwillbebadlycontaininated.Ontheotherhand,ifobservationsdonotincludeanygrosserrors,theresultofrobustestimationisnotasgoodasthatofLSE.Tosolvethisproblem,Wang(1999)developedanestimationmethodcalledInformationSpreadEstimation(ISE)basedontheinformationspreadprinciple.TheISEisaverygoodmethodforestimatingoneparameterwhichisveryrobust.However,mostofinstancesinsurveyingdataprocessingaremulti-parameters'estimation,owingtotheinherentrestrictionsofISE,itcannotbeappliedtothesurveyingdataprocessingdirectly.Toapplythegoodmethodtothefieldofsurveyingdataprocessingwidely,theauthorhasdonetheresearchdeeply.ThispaperappliesISEsuccessfullytotheadjustmentoflevelingnetworkbyusingthespecialtiesofleveling.
简介:Theyearof2000isattheturnofthecenturyaswellasofthemillennium.Themankindwavesfarewelltothe20thcenturyaswellasthesecondmillenniumandwelcomesthe21stcenturyandthethirdmillennium.Atthisspecialjuncture,lookingcloselyatthefuturebasedonunderstandingwhichwasobtainedfromre-viewingandsummarizingthepastandpresentworldpoliticsfromhistoricalandphilosophicalstandpoints,wecanfindthatithasbecomeanunavoidablesubjectonhowtoregardthetrendoftheworldpatterntowardmulti-polarizationandrespon-sibilityadjustmentarisingfromit.
简介:TheservicestructureofChinapostisnotmatchthepostalresourcesstructure,Coreserviceisnotstressed.Therefore,thepostalservicemustbereorganizedandAdjustedaccordingtothemarketneeds.Thisarticleclassifypostserviceintofivecatalogues,proposesthestrategicorientationofeachcataloguesandanalysestheinteriorstructureofdifferentpostalservice.
简介:Invideoinformationretrieval,keyframeextractionhasbeenrecognizedasoneoftheimportantresearchissues.Althoughmuchprogresshasbeenmade,theexistingapproachesareeithercomputationallyexpensiveorineffectiveincapturingsalientvisualcontent.Inthispaper,wefirstdiscusstheimportanceofkeyframeextractionandthenbrieflyreviewandevaluatetheexistingapproaches.Toovercometheshortcomingeoftheexistingapproaches,weintroduceanewalgorithmforkeyframeextractionbasedonunsupervisedclustring.Meanwhile,weprovideafeedbackchaintoadjustthegranularityoftheextractionresult.Theproposedalgorithmisbothcomputationallysimpleandabletocapturethevisualcontent.Theefficiencyandeffectivenessarevalidatedbylargeamountofreal-worldvideos.
简介:Ofitstotalexportvolume,theproportionofChina’snewandhightechnologyproductsandhighvalue-addedproductsisextremelylow.Itspuretechnologicalexportrateisonly2percentofthetotal.Therefore,alongwiththetransformationofthemodeofgrowthofChina’snationaleconomy,acorrespondinggrowthmodetransformationshouldtakeplaceinitsforeigntradesector,anditisnecessarytoachieveasignificantchangeinitsimportandexportproductmix.
简介:Uptonow,outlierdetectionandreliabilitytheoryaregenerallybasedontheregularGauss-Markovmodels,inwhichthecovariancematrixofob-servationsispositivelydefinite.Fortheadjustmentmodelswithsingularcovari-ancematrix,thestatisticsforoutlierdetectionarederivedbytheauthors.Thecorrespondingreliabilitytheoryisdeveloped.Andtheapplicationofthetheoryisdemonstratedwithapracticalexample.