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Titre : Rendu et représentation graphiques d’informations spatio-temporelles Type de document : Article/Communication Auteurs : Sidonie Christophe , Auteur ; Mathieu Brédif , Auteur Editeur : Saint-Mandé : Institut national de l'information géographique et forestière - IGN (2012-) Année de publication : 2019 Conférence : JFIGRV 2019, Journées Françaises d’Informatique Graphique et de Réalité Virtuelle 12/11/2019 15/11/2019 Marseille France programme Importance : 6 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] analyse visuelle
[Termes IGN] cognition
[Termes IGN] données hétérogènes
[Termes IGN] données multiéchelles
[Termes IGN] données spatiotemporelles
[Termes IGN] niveau d'abstraction
[Termes IGN] réalité augmentée
[Termes IGN] rendu (géovisualisation)
[Termes IGN] représentation cartographique
[Termes IGN] représentation graphique
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) Cet article de positionnement expose une partie des questions de recherche et travaux en cours de notre équipe en géovisualisation (équipe GEOVIS du laboratoire LaSTIG), concernant la visualisation et l’analyse visuelle d’informations spatio-temporelles sur le territoire, via l’interaction et l’immersion. Les questions classiques de la géovisualisation perdurent – quelles représentations graphiques, quelles interfaces, quelle qualité. Néanmoins, le contexte a évolué : la complexité des phénomènes et dynamiques physiques, historiques, sociologiques et leurs interactions avec l’espace géographique, ainsi que le volume de données spatiales hétérogènes, et les besoins d’utilisateurs très variés en capacités de vision, perception et cognition nécessitent de faire encore plus converger des domaines connexes sur la représentation graphique et l’exploration de données, pour améliorer les capacités d’analyse visuelle en géovisualisation. En particulier, nous présentons ici des questions et travaux de recherche spécifiques à l’exploration interactive des capacités de rendu et de représentation (carto)graphique de données spatio-temporelles dans le contexte de la géovisualisation. Ces travaux s’appliquent à des problématiques liées à la visualisation des espaces géographiques urbains et à des problématiques d’analyse de dynamiques urbaines (historique, planification) et de dynamiques géophysiques (inondations, météorologie). Ces travaux sont implémentés sur une plateforme open source de visualisation 3D. Numéro de notice : C2019-023 Affiliation des auteurs : LASTIG COGIT (2012-2019) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComSansActesPubliés-Unpublished DOI : sans Date de publication en ligne : 07/11/2019 En ligne : https://hal.archives-ouvertes.fr/hal-02354598 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94168 Documents numériques
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Rendu et représentation graphiques... pdf auteurAdobe Acrobat PDF The future of Geographic Information Displays from GIScience, cartographic, and cognitive science perspectives / Tyler Thrash (2019)
contenu dans COSIT 2019, 14th International Conference on Spatial Information Theory, September 9-13, 2019, Regensburg, Germany / Sabine Timpf (2019)
Titre : The future of Geographic Information Displays from GIScience, cartographic, and cognitive science perspectives Type de document : Article/Communication Auteurs : Tyler Thrash, Auteur ; Sara Irina Fabrikant, Auteur ; et al., Auteur Editeur : Leibniz [Allemagne] : Schloss Dagstuhl – Leibniz-Zentrum für Informatik Année de publication : 2019 Collection : LIPIcs Leibniz International Proceedings in Informatics, ISSN 1868-8969 num. Vol. 142 Conférence : COSIT 2019, 14th International Conference on Spatial Information Theory 09/09/2019 13/09/2019 Regensburg Allemagne Open Access Proceedings Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] apprentissage (cognition)
[Termes IGN] cognition
[Termes IGN] représentation spatiale
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) With the development of modern geovisual analytics tools, several researchers have emphasized the importance of understanding users' cognitive, perceptual, and affective tendencies for supporting spatial decisions with geographic information displays (GIDs). However, most recent technological developments have focused on support for navigation in terms of efficiency and effectiveness while neglecting the importance of spatial learning. In the present paper, we will envision the future of GIDs that also support spatial learning in the context of large-scale navigation. Specifically, we will illustrate the manner in which GIDs have been (in the past) and might be (in the future) designed to be context-responsive, personalized, and supportive for active spatial learning from three different perspectives (i.e., GIScience, cartography, and cognitive science). We will also explain why this approach is essential for preventing the technological infantilizing of society (i.e., the reduction of our capacity to make decisions without technological assistance). Although these issues are common to nearly all emerging digital technologies, we argue that these issues become especially relevant in consideration of a person's current and future locations. Numéro de notice : A2019-647 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication DOI : 10.4230/LIPIcs.COSIT.2019.19 En ligne : https://doi.org/10.4230/LIPIcs.COSIT.2019.19 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96910 Visual exploration of migration patterns in gull data / Maximilian Konzack in Information visualization, vol 18 n° 1 (January 2019)
[article]
Titre : Visual exploration of migration patterns in gull data Type de document : Article/Communication Auteurs : Maximilian Konzack, Auteur ; Pieter Gijsbers, Auteur ; Ferry Timmers, Auteur ; et al., Auteur Année de publication : 2019 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse géovisuelle
[Termes IGN] Aves
[Termes IGN] migration animale
[Termes IGN] origine - destination
[Termes IGN] visualisation multiéchelle
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) We present a visual analytics approach to explore and analyze movement data as collected by ecologists interested in understanding migration. Migration is an important and intriguing process in animal ecology, which may be better understood through the study of tracks for individuals in their environmental context. Our approach enables ecologists to explore the spatio-temporal characteristics of such tracks interactively. It identifies and aggregates stopovers depending on a scale at which the data is visualized. Statistics of stopover sites and links between them are shown on a zoomable geographic map which allows to interactively explore directed sequences of stopovers from an origin to a destination. In addition, the spatio-temporal properties of the trajectories are visualized by means of a density plot on a geographic map and a calendar view. To evaluate our visual analytics approach, we applied it on a data set of 75 migrating gulls that were tracked over a period of 3 years. The evaluation by an expert user confirms that our approach supports ecologists in their analysis workflow by helping to identifying interesting stopover locations, environmental conditions or (groups of) individuals with characteristic migratory behavior, and allows therefore to focus on visual data analysis. Numéro de notice : A2019-401 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1177/1473871617751245 Date de publication en ligne : 20/01/2018 En ligne : https://doi.org/10.1177/1473871617751245 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89120
in Information visualization > vol 18 n° 1 (January 2019)[article]4-dimensional recording and visualization of urban archeological excavations / Gabriele Bitelli in Applied geomatics, vol 10 n° 4 (December 2018)
[article]
Titre : 4-dimensional recording and visualization of urban archeological excavations Type de document : Article/Communication Auteurs : Gabriele Bitelli, Auteur ; Valentina Alena Girelli, Auteur ; Giorgia Sammarini, Auteur Année de publication : 2018 Article en page(s) : pp 415 - 426 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] archéométrie
[Termes IGN] données 4D
[Termes IGN] grotte
[Termes IGN] modèle 3D du site
[Termes IGN] photogrammétrie numérique
[Termes IGN] site archéologique
[Termes IGN] structure-from-motion
[Termes IGN] visualisation 4D
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) The new geomatic techniques and technologies for surveying an archeological excavation are not limited to obtaining more accurate data or more precisely geo-referenced positions on a map, as they can lead to new approaches and, indeed, raise the concept of different dimensions relating to the handled information. The techniques on offer are now fully 3D and, even more interestingly, can also permit to handle temporal information, that is, the evolution of operations over time. This allows scholars and technicians to build and maintain a wealth of vital knowledge documenting what happens during an excavation. This is further true when these are in urban areas, often known as “emergency excavations” from their distinctive logistics and timing constraints. The aim of this paper is to present, in a practical context, some of the many capabilities of 3D surveying performed through digital photogrammetry based on multi-view structure-from-motion approach in the field of urban emergency archeology. The information that can be derived from exploring three-dimensional models allows us to interact with realities that no longer exist, with the possibility not merely of recording their memory, but also of further studies and insights, even after a long period of time. In addition, the excavation itself is documented as it evolves, thus allowing the main phases of the process to be reconstructed retrospectively. The study case examined covers a small necropolis discovered in Rimini (Italy) in 2015. The results and the 3D final products can be managed through Geographic Information System (GIS) tools and, therefore, can easily be interfaced and integrated with other types of information on a different scale. Numéro de notice : A2018-595 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s12518-018-0239-x Date de publication en ligne : 14/09/2018 En ligne : https://doi.org/10.1007/s12518-018-0239-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92519
in Applied geomatics > vol 10 n° 4 (December 2018) . - pp 415 - 426[article]Automatic cloud resource management for interactive remote geovisualization / Tong Zhang in Transactions in GIS, vol 22 n° 6 (December 2018)
[article]
Titre : Automatic cloud resource management for interactive remote geovisualization Type de document : Article/Communication Auteurs : Tong Zhang, Auteur ; Jing Li, Auteur Année de publication : 2018 Article en page(s) : pp 1437 - 1461 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] automatisation
[Termes IGN] informatique en nuage
[Termes IGN] modèle dynamique
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) Remote geovisualization has gained momentum to support large‐scale geospatial data analysis and complex decision‐making over the last few years. Cloud computing, due to its capabilities to deliver on‐demand computing resources, has been embraced to develop and deploy interactive and scalable remote geovisualization applications. However, current cloud computing frameworks do not offer a versatile resource management scheme that is readily applicable for online remote visualization services, which usually require maintaining a satisfactory service level over time under dynamic workloads. To address this gap, we propose an automatic cloud resource management approach based on a bi‐level scheduling and horizontal scaling scheme to exploit cloud resources efficiently. At the lower level, a dynamic task‐scheduling scheme using collaborative filtering techniques is proposed to allocate virtual cloud resources to execute sub‐tasks. The scheduling scheme considers spatio‐temporal patterns presented in visualization views. At the upper level, reinforcement learning is adopted to perform resource auto‐scaling based on a reward function that integrates three different facets, namely: time cost, resource cost, and service stability. The original reinforcement learning algorithm is improved in two main aspects: (1) considering the delay of resource provisioning that is common in cloud environments; and (2) using online Gaussian estimation to estimate Q values. Task scheduling and auto‐scaling interact with each other and are integrated to deliver a comprehensive and responsive resource management solution. Experimental results demonstrate that our approach outperforms several existing cloud resource management methods. The proposed approach is also applicable for other interactive visualization applications, which have similar workload characteristics and performance requirements as interactive remote geovisualization. Numéro de notice : A2018-567 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12479 Date de publication en ligne : 10/12/2018 En ligne : https://doi.org/10.1111/tgis.12479 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92286
in Transactions in GIS > vol 22 n° 6 (December 2018) . - pp 1437 - 1461[article]Using Network Segments in the Visualization of Urban Isochrones / Jeff Allen in Cartographica, vol 53 n° 4 (Winter 2018)PermalinkAn efficient technique for creating a continuum of equal-area map projections / Daniel "daan" Strebe in Cartography and Geographic Information Science, Vol 45 n° 6 (November 2018)PermalinkThe design and testing of 3DmoveR: an experimental tool for usability studies of interactive 3D maps / Lukas Herman in Cartographic perspectives, n° 90 ([01/10/2018])Permalink3D urban geovisualization: in situ augmented and mixed reality experiments / Alexandre Devaux in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol IV-4 (October 2018)PermalinkDescriptive measures of point distributions summarized with respect to spatial scale in visualization / Yukio Sadahiro in Cartographica, vol 53 n° 3 (Fall 2018)PermalinkPermalinkThe potential of Web-GIS and geovisual analytics in the context of marine cadastre / Agnieszka Dawidowicz in Survey review, vol 50 n° 363 (September 2018)PermalinkMethod for the analysis and visualization of similar flow hotspot patterns between different regional groups / Haiping Zhang in ISPRS International journal of geo-information, vol 7 n° 8 (August 2018)PermalinkSensePlace3: a geovisual framework to analyze place–time–attribute information in social media / Scott Pezanowski in Cartography and Geographic Information Science, Vol 45 n° 5 (August 2018)PermalinkTask-oriented visualization approaches for landscape and urban change analysis / Jochen Schiewe in ISPRS International journal of geo-information, vol 7 n° 8 (August 2018)Permalink