Détail de l'auteur
Auteur Ourania Kounad |
Documents disponibles écrits par cet auteur (1)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externes
Spatial information divergence: using global and local indices to compare geographical masks applied to crime data / Ourania Kounad in Transactions in GIS, vol 19 n° 5 (October 2015)
[article]
Titre : Spatial information divergence: using global and local indices to compare geographical masks applied to crime data Type de document : Article/Communication Auteurs : Ourania Kounad, Auteur ; Michael Leitner, Auteur Année de publication : 2015 Article en page(s) : pp 737 – 757 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] analyse comparative
[Termes IGN] cartographie thématique
[Termes IGN] criminalité
[Termes IGN] information géographique
[Termes IGN] masque géographique
[Termes IGN] système d'information géographique
[Termes IGN] zonage (urbanisme)Résumé : (auteur) Advances in Geographic Information Science (GISc) and the increasing availability of location data have facilitated the dissemination of crime data and the abundance of crime mapping websites. However, data holders acknowledge that when releasing sensitive crime data there is a risk of compromising the victims' privacy. Hence, protection methodologies are primarily applied to the data to ensure that individual privacy is not violated. This article addresses one group of location protection methodologies, namely geographical masks that are applicable for crime data representations. The purpose is to identify which mask is the most appropriate for crime incident visualizations. A global divergence index (GDi) and a local divergence index (LDi) are developed to compare the effects that these masks have on the original crime point pattern. The indices calculate how dissimilar the spatial information of the masked data is from the spatial information of the original data in regards to the information obtained via spatial crime analysis. The results of the analysis show that the variable radius mask and the donut geomask should be primarily used for crime representations as they produce less spatial information divergence of the original crime point pattern than the alternative local random rotation mask and circular mask. Numéro de notice : A2015-685 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12125 En ligne : https://doi.org/10.1111/tgis.12125 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78330
in Transactions in GIS > vol 19 n° 5 (October 2015) . - pp 737 – 757[article]