Centre de documentation
scientifique

Enhancing spatial accuracy of mobile phone data using multi-temporal dasymetric interpolation / Olle Järv in International journal of geographical information science IJGIS, vol 31 n° 7-8 (July - August 2017)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 31 n° 7-8 (July - August 2017) . - pp 1630 - 1651 Titre : Enhancing spatial accuracy of mobile phone data using multi-temporal dasymetric interpolation Type de document : Article/Communication Auteurs : Olle Järv, Auteur ; Henrikki Tenkanen, Auteur ; Tuuli Toivonen, Auteur Année de publication : 2017 Article en page(s) : pp 1630 - 1651 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] cadre conceptuel [Termes IGN] dimension temporelle [Termes IGN] interpolation spatiale [Termes IGN] précision des données [Termes IGN] Python (langage de programmation) [Termes IGN] téléphonie mobile Résumé : (Auteur) Novel digital data sources allow us to attain enhanced knowledge about locations and mobilities of people in space and time. Already a fast-growing body of literature demonstrates the applicability and feasibility of mobile phone-based data in social sciences for considering mobile devices as proxies for people. However, the implementation of such data imposes many theoretical and methodological challenges. One major issue is the uneven spatial resolution of mobile phone data due to the spatial configuration of mobile network base stations and its spatial interpolation. To date, different interpolation techniques are applied to transform mobile phone data into other spatial divisions. However, these do not consider the temporality and societal context that shapes the human presence and mobility in space and time. The paper aims, first, to contribute to mobile phone-based research by addressing the need to give more attention to the spatial interpolation of given data, and further by proposing a dasymetric interpolation approach to enhance the spatial accuracy of mobile phone data. Second, it contributes to population modelling research by combining spatial, temporal and volumetric dasymetric mapping and integrating it with mobile phone data. In doing so, the paper presents a generic conceptual framework of a multi-temporal function-based dasymetric (MFD) interpolation method for mobile phone data. Empirical results demonstrate how the proposed interpolation method can improve the spatial accuracy of both night-time and daytime population distributions derived from different mobile phone data sets by taking advantage of ancillary data sources. The proposed interpolation method can be applied for both location- and person-based research, and is a fruitful starting point for improving the spatial interpolation methods for mobile phone data. We share the implementation of our method in GitHub as open access Python code Numéro de notice : A2017-314 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2017.1287369 En ligne : http://dx.doi.org/10.1080/13658816.2017.1287369 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85368 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-2017041	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-2017042	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A novel solution of the Finnish NSDI / Tuuli Toivonen in Geoinformatics, vol 10 n° 7 (01/11/2007)

Public [article]  inGeoinformatics > vol 10 n° 7 (01/11/2007) . - pp 24 - 25 Titre : A novel solution of the Finnish NSDI Type de document : Article/Communication Auteurs : Tuuli Toivonen, Auteur ; R. Kalliola, Auteur Année de publication : 2007 Article en page(s) : pp 24 - 25 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] acquisition de données [Termes IGN] Finlande [Termes IGN] implémentation (informatique) [Termes IGN] infrastructure européenne de données localisées [Termes IGN] INSPIRE [Termes IGN] interface web [Termes IGN] métadonnées [Termes IGN] partage de données localisées [Termes IGN] qualité des données Résumé : (Auteur) The INSPIRE directive puts foward a variety of GI infrastructure services at the national level. Most countries are currently at the planning phase of their own metadata and viewing services. Issues related to describing spatial data quality, defining data prices and enhancing the discovery of data sets are topical from country to country. In Finland, the challenges have been solved in part through a concept of spatial data lending. Copyright GEOinformatics Numéro de notice : A2007-497 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28860 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
262-07071	SL	Revue	Centre de documentation	Revues en salle	Disponible

Tailor-made facilities to enhance spatial communication / R. Kalliola in Geoinformatics, vol 10 n° 5 (01/07/2007)

Public [article]  inGeoinformatics > vol 10 n° 5 (01/07/2007) . - pp 20 - 23 Titre : Tailor-made facilities to enhance spatial communication Type de document : Article/Communication Auteurs : R. Kalliola, Auteur ; Tuuli Toivonen, Auteur Année de publication : 2007 Article en page(s) : pp 20 - 23 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] accessibilité [Termes IGN] Copernicus (programme européen) [Termes IGN] infrastructure mondiale des données localisées [Termes IGN] INSPIRE Résumé : (Auteur) The availability of digital spatial data is essential for the functioning of modern societies. This has been recognized by many international initiatives, such as the recent INSPIRE directive in Europe and global GSDI or thematic GMES or GBIF. Such initiatives focus primarily on setting up basic infrastructures for the delivery of spatially referenced data or their metadata. The value of these technical infrastructures is, however, finally evaluated on the basis of the added value of the user-oriented interface services that they are able to support and enable. Copyright GEOinformatics Numéro de notice : A2007-343 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28706 [article]