Search results for "Data analysis"

showing 3 items of 383 documents

The editorial function of the territorial intelligence systems

2006

This communication makes an updating of our thinking about the editorial function of the systems of territorial intelligence. Computer science and information systems aim at increasing the communication between the human beings. A territorial intelligence system is an instrument at the service of the actors who ambition to control the development the equitable and sustainable development of their territory. Since the irruption of data processing, we led research activities to design friendly software, then to model the structure of a territorial information system that is at the service of a network of territorial actors, and more recently to integrate the data analysis functions. They led …

édition numériqueInformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.HCI)[SHS.GEO] Humanities and Social Sciences/GeographyGeographical Information Systems (gis)data analysisSystèmes d'Information Géographique (SIG)[SHS.GEO]Humanities and Social Sciences/Geographyterritorial governanceinformation systems[SHS.ECO]Humanities and Social Sciences/Economics and FinanceGeneralLiterature_MISCELLANEOUSdigital edition[ SHS.GEO ] Humanities and Social Sciences/Geographyterritorial intelligenceinformation systemsGeographical Information Systems (gis)data analysisdigital editionterritorial governanceintelligence territorialesystèmes d'informationSystèmes d'Information Géographique (SIG)analyse des donnéesédition numériquegouvernance territorialeintelligence territorialeComputingMilieux_COMPUTERSANDSOCIETY[ SHS.ECO ] Humanities and Social Sciences/Economies and financesgouvernance territorialeanalyse des donnéesterritorial intelligence[SHS.ECO] Humanities and Social Sciences/Economics and Financesystèmes d'information
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Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period

2016

This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…

Большой адронный коллайдерbackground [beam]Physics::Instrumentation and DetectorsMonte Carlo methodPerformance of high energy physics detectorJet (particle physics)01 natural sciencesHigh Energy Physics - ExperimentSubatomär fysikHigh Energy Physics - Experiment (hep-ex)pressureSubatomic Physicsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Instrumentationпротон-протонные столкновенияQCMathematical PhysicsPhysicseducation.field_of_studyPerformance of high energy physics detectorsLarge Hadron ColliderSettore FIS/01 - Fisica SperimentaleBeam-intensity monitors; Beam-line instrumentation (beam position and profile monitors; Bunch length monitors); Data analysis; Performance of high energy physics detectors; Instrumentation; Mathematical PhysicsData analysiMonte Carlo [numerical calculations]ATLASbuildingsBunchesCERN LHC CollBeam-intensity monitorBeam-line instrumentation (beam position and profile monitorComputingMethodologies_DOCUMENTANDTEXTPROCESSINGcolliding beams [p p]Particle Physics - ExperimentParticle physicsCiências Naturais::Ciências Físicas530 PhysicsAstrophysics::High Energy Astrophysical PhenomenaPopulation:Ciências Físicas [Ciências Naturais]Beam-line instrumentation (beam position and profile monitorsData analysisFOS: Physical sciencesgapCosmic ray530Bunch length monitors)Nuclear physicsATLAS LHC High Energy Physics510 Mathematics0103 physical sciencesBeam-line instrumentation (beam position and profile monitors;; beam-intensity monitors; bunch length monitors); Data analysis;; Performance of High Energy Physics Detectors; LEPHigh Energy Physicsddc:610010306 general physicseducationMuonScience & Technologycosmic radiation [muon]010308 nuclear & particles physicsFísicaLEPBeam-intensity monitorsghostcorrelationExperimental High Energy PhysicsBeam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); Data analysis; Performance of High Energy Physics DetectorsBeam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors)Physics::Accelerator PhysicsPerformance of High Energy Physics DetectorsATLAS детекторBeam (structure)experimental resultsbeam-line instrumentation
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High frequency data entry: statistical findings at high frequency

2010

We introduce some of the most common types of high-frequency financial data: tick-by-tick data, trade andquote data, order bookdata, andmarket member data. We describe the types of variables that are usually available in the most popular high-frequency financial databases. We discuss the issues related to the handling of these data, including cleaning protocols, timing issues, and issues related to data size. We then briefly consider the issues related to the stylized facts detected in the empirical analysis of high- frequency data. Specifically, we consider (i) the irregular temporal spacing of the events at high frequency and its relevance for the econometric modeling of financial variables, (…

financial markets high-frequency data data analysis tick-by-tick data order bookdata market microstructure econophysicsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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