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Detecting spatiotemporal propagation patterns of traffic congestion from fine-grained vehicle trajectory data / Haoyi Xiong in International journal of geographical information science IJGIS, vol 37 n° 5 (May 2023)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 37 n° 5 (May 2023) . - pp 1157-1179 Titre : Detecting spatiotemporal propagation patterns of traffic congestion from fine-grained vehicle trajectory data Type de document : Article/Communication Auteurs : Haoyi Xiong, Auteur ; Xun Zhou, Auteur ; David A. Bennett, Auteur Année de publication : 2023 Article en page(s) : pp 1157-1179 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] déformation temporelle dynamique (algorithme) [Termes IGN] détection d'anomalie [Termes IGN] données spatiotemporelles [Termes IGN] événement [Termes IGN] flux [Termes IGN] gestion de trafic [Termes IGN] réseau routier [Termes IGN] trafic routier Résumé : (auteur) Traffic congestion on a road segment typically begins as a small-scale spatiotemporal event that can then propagate throughout a road network and produce large-scale disruptions to a transportation system. In current techniques for the analysis of network flow, data is often aggregated to relatively large (e.g. 5 min) discrete time steps that obscure the small-scale spatiotemporal interactions that drive larger-scale dynamics. We propose a new method that handles fine-grained data to better capture those dynamics. Propagation patterns of traffic congestion are represented as spatiotemporally connected events. Each event is captured as a time series at the temporal resolution of the available trajectory data and at the spatial resolution of the network edge. The spatiotemporal propagation patterns of traffic congestion are captured using Dynamic Time Warping and represented as a set of directed acyclic graphs of spatiotemporal events. Results from this method are compared to an existing method using fine-grained data derived from an agent-based model of traffic simulation. Our method outperforms the existing method. Our method also successfully detects congestion propagation patterns that were reported by media news using sparse real-world data derived from taxis. Numéro de notice : A2023-225 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2023.2178653 Date de publication en ligne : 22/02/2023 En ligne : https://doi.org/10.1080/13658816.2023.2178653 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=103177 [article]

vol 34 n° 4 - October 2007 - Towards ubiquitous cartography (Bulletin de Cartography and Geographic Information Science) / Cartography and geographic information society  

Public [n° ou bulletin]  est un bulletin de Cartography and Geographic Information Science / Cartography and geographic information society (1999 -)   Titre : vol 34 n° 4 - October 2007 - Towards ubiquitous cartography Type de document : Périodique Auteurs : Cartography and geographic information society, Auteur ; Georg Gartner, Éditeur scientifique ; David A. Bennett, Éditeur scientifique ; Takashi Morita, Éditeur scientifique Année de publication : 2007 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie Numéro de notice : 032-0704 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Numéro de périodique En ligne : http://www.ingentaconnect.com/content/cagis/cagis/2007/00000034/00000004;jsessio [...] Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=21555 [n° ou bulletin]

Contient

• Towards ubiquitous cartography / Georg Gartner in Cartography and Geographic Information Science, vol 34 n° 4 (October 2007)  
• User aspects of adaptative visualization for mobile maps / Annu-Maaria Nivala in Cartography and Geographic Information Science, vol 34 n° 4 (October 2007)  
• Wireless campus LBS: a test bed for WiFi positioning and location based services / B. Kobben in Cartography and Geographic Information Science, vol 34 n° 4 (October 2007)  
• Place-tagged podcasts with synchronized maps on mobile media players / M. Arikawa in Cartography and Geographic Information Science, vol 34 n° 4 (October 2007)  
• Augmentation of indoor positioning systems with a barometric pressure sensor for direct altitude determination in a multi-storey building / Guenther Retscher in Cartography and Geographic Information Science, vol 34 n° 4 (October 2007)  

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
032-07041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Modelling adaptive, spatially aware, and mobile agents: Elk migration in Yellowstone / David A. Bennett in International journal of geographical information science IJGIS, vol 20 n° 9 (october 2006)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 20 n° 9 (october 2006) . - pp 1039 - 1066 Titre : Modelling adaptive, spatially aware, and mobile agents: Elk migration in Yellowstone Type de document : Article/Communication Auteurs : David A. Bennett, Auteur ; W. Tang, Auteur Année de publication : 2006 Article en page(s) : pp 1039 - 1066 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] apprentissage automatique [Termes IGN] Etats-Unis [Termes IGN] Mammalia [Termes IGN] migration animale [Termes IGN] objet mobile [Termes IGN] parc naturel national [Termes IGN] système multi-agents Résumé : (Auteur) The potential utility of agent-based models of adaptive, spatially aware, and mobile entities in geographic and ecological research is considerable. Developing this potential, however, presents significant challenges to geographic information science. Modelling the spatio-temporal behaviour of individuals requires new representational forms that capture how organisms store and use spatial information. New procedures must be developed that simulate how individuals produce bounded knowledge of geographical space through experiential learning, adapt this knowledge to continually changing environments, and apply it to spatial decision-making processes. In this paper, we present a framework for the representation of adaptive, spatially aware, and mobile agents. To provide context to this research, a multiagent model is constructed to simulate the migratory behaviour of elk (Cervus elaphus) on Yellowstone's northern range. In this simulated environment, intelligent agents learn in ways that enable them to mimic real-world behaviours and adapt to changing landscapes. Copyright Taylor & Francis Numéro de notice : A2006-423 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810600830806 En ligne : https://doi.org/10.1080/13658810600830806 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28147 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-06091	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-06092	RAB	Revue	Centre de documentation	En réserve L003	Disponible