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Título:
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A quadtree approach based on European geographic grids: reconciling data privacy and accuracy
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Autor/a:
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Lagonigro, Raymond; Oller, Ramon; Martori, Joan Carles
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Otros autores:
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Universitat de Vic - Universitat Central de Catalunya. Departament d'Economia i Empresa; Universitat de Vic - Universitat Central de Catalunya. Grup de Recerca Data Analysis and Modeling |
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Notas:
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Methods to preserve confidentiality when publishing geographic information conflict with the need
to publish accurate data. The goal of this paper is to create a European geographic grid frame-
work to disseminate statistical data over maps. We propose a methodology based on quadtree
hierarchical geographic data structures. We create a varying size grid adapted to local area densi-
ties. High populated zones are disaggregated in small squares to allow dissemination of accurate
data. Alternatively, information on low populated zones is published in big squares to avoid iden-
tification of individual data. The methodology has been applied to the 2014 population register
data in Catalonia. |
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Materia(s):
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-Sistemes d'informació geogràfica
-Estadística |
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Derechos:
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Aquest document està subjecte a aquesta llicència Creative Commons
http://creativecommons.org/licenses/by-nc/3.0/es/
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Tipo de documento:
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Artículo
info:eu-repo/publishedVersion |
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Editor:
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Institut d´Estadística de Catalunya (Idescat)
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Compartir:
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