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Attribute trajectory analysis : a framework to analyse attribute changes using trajectory analysis techniques / Long Zhang in International journal of geographical information science IJGIS, vol 32 n° 5-6 (May - June 2018)
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Titre : Attribute trajectory analysis : a framework to analyse attribute changes using trajectory analysis techniques Type de document : Article/Communication Auteurs : Long Zhang, Auteur ; Nico Van De Weghe, Auteur Année de publication : 2018 Article en page(s) : pp 1043 - 1059 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] attribut
[Termes IGN] mesure de similitude
[Termes IGN] objet mobile
[Termes IGN] trajectoire (véhicule non spatial)
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) Trajectory analysis has attracted growing attention in the research field of geography. Beyond traditional moving object trajectories, another type of trajectory exists in which the coordinates are object attributes rather than geographical coordinates. In this paper, a framework to analyse these so-called attribute trajectories is proposed that uses four techniques typically employed in the analysis of moving object trajectories: the Reeb graph, the similarity matrix, the convoy and the mega-convoy. The Reeb graph provides the ability to visualise the temporal dynamics of attribute similarities. The similarity matrix is a supplement of the Reeb graph whose purpose is to visualise the pairwise similarities among the attributes. Moreover, the similarity matrix forms a basis for clustering. The convoy highlights objects whose attributes remain similar for a sufficiently long period. The mega-convoy reduces the number of convoys and reveals their evolutionary histories by merging overlapping convoys. A small real-world meteorological dataset is used as an example to illustrate the attribute trajectory analysis framework and the techniques. This paper aims to form a starting point for applying trajectory analysis techniques in many research fields. Numéro de notice : A2018-199 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2018.1435885 Date de publication en ligne : 07/02/2018 En ligne : https://doi.org/10.1080/13658816.2018.1435885 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89868
in International journal of geographical information science IJGIS > vol 32 n° 5-6 (May - June 2018) . - pp 1043 - 1059[article]Réservation
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