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UK open source crime data: accuracy and possibilities for research / Lisa Tompson in Cartography and Geographic Information Science, Vol 42 n° 2 (April 2015)  

Public [article]  inCartography and Geographic Information Science > Vol 42 n° 2 (April 2015) . - pp 97 - 111 Titre : UK open source crime data: accuracy and possibilities for research Type de document : Article/Communication Auteurs : Lisa Tompson, Auteur ; Shane Johnson, Auteur ; Matthew Ashby, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 97 - 111 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] données ouvertes [Termes IGN] données statistiques [Termes IGN] infraction [Termes IGN] masque géographique [Termes IGN] protection de la vie privée [Termes IGN] Royaume-Uni [Termes IGN] similitude Résumé : (auteur) In the United Kingdom, since 2011 data regarding individual police recorded crimes have been made openly available to the public via the police.uk website. To protect the location privacy of victims these data are obfuscated using geomasking techniques to reduce their spatial accuracy. This paper examines the spatial accuracy of the police.uk data to determine at what level(s) of spatial resolution – if any – it is suitable for analysis in the context of theory testing and falsification, evaluation research, or crime analysis. Police.uk data are compared to police recorded data for one large metropolitan Police Force and spatial accuracy is quantified for four different levels of geography across five crime types. Hypotheses regarding systematic errors are tested using appropriate statistical approaches, including methods of maximum likelihood. Finally, a “best-fit” statistical model is presented to explain the error as well as to develop a model that can correct it. The implications of the findings for researchers using the police.uk data for spatial analysis are discussed. Numéro de notice : A2015-236 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2014.972456 En ligne : https://doi.org/10.1080/15230406.2014.972456 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76493 [article]

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