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Complexity reduction in choropleth map animations by autocorrelation weighted generalization of time-series data / Christoph Traun in Cartography and Geographic Information Science, Vol 45 n° 3 (May 2018)  

Public [article]  inCartography and Geographic Information Science > Vol 45 n° 3 (May 2018) . - pp 221 - 237 Titre : Complexity reduction in choropleth map animations by autocorrelation weighted generalization of time-series data Type de document : Article/Communication Auteurs : Christoph Traun, Auteur ; Christoph Mayrhofer, Auteur Année de publication : 2018 Article en page(s) : pp 221 - 237 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] autocorrélation [Termes IGN] carte choroplèthe [Termes IGN] complexité [Termes IGN] généralisation automatique de données [Termes IGN] série temporelle [Vedettes matières IGN] Généralisation Résumé : (Auteur) Choropleth map animation is widely used to show the development of spatial processes over time. Although animation congruently depicts change, the rapid succession of complex map scenes easily exceeds the human cognitive capacity, causing map users to miss important information. Hence, a reduction of the visual complexity of map animations is desirable. This article builds on research related to complexity reduction of static choropleth maps. It proposes value generalization of choropleth time-series data in space and time, by using a method that adapts to the degree of global spatiotemporal autocorrelation within the dataset. A combination with upstream algorithms for local outlier detection results in less complex map animations focusing on large-scale patterns while still preserving significant local deviations in space and time. An according software application allows for in-depth exploration of the spatial and temporal autocorrelation structures in time-series data and provides control over the whole process of generalization. Numéro de notice : A2018-130 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/15230406.2017.1308836 Date de publication en ligne : 03/04/2017 En ligne : https://doi.org/10.1080/15230406.2017.1308836 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89658 [article]

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