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Auteur Joanna Nowak Da Costa |
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Novel tool for examination of data completeness based on a comparative study of VGI data and official building datasets / Joanna Nowak Da Costa in Geodetski vestnik, vol 60 n° 3 (September - November 2016)
[article]
Titre : Novel tool for examination of data completeness based on a comparative study of VGI data and official building datasets Type de document : Article/Communication Auteurs : Joanna Nowak Da Costa, Auteur Année de publication : 2016 Article en page(s) : pp 495 - 508 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] analyse comparative
[Termes IGN] bati
[Termes IGN] données localisées de référence
[Termes IGN] données localisées des bénévoles
[Termes IGN] exhaustivité des données
[Termes IGN] jeu de données localisées
[Termes IGN] OpenStreetMap
[Termes IGN] qualité des donnéesRésumé : (Auteur) The goal of this study was a better understanding of the quality of Volunteered Geographic Information (VGI), and by extension its utility. The research focused on the applicability of OpenStreetMap (OSM) building data for official spatial databases. In terms of feature completeness, the achieved results are in-line with other similar studies. The study concluded that in town centres the completeness of OSM data is relatively high but decreases further away from urban centres. It demonstrated that attribute completeness also relies on the level of urbanization as well as the nature of attribute. Furthermore, a very high overall positional accuracy was determined for OSM building data that ranged between 0.6 m in urban areas and 1.7 m in rural areas. This result is more than five times better than the frequently cited OSM accuracy results obtained by Haklay in 2010. In this work, a novel tool is introduced to help assess the completeness of OSM building-tagged features. The proposed index, called the matching feature area-based completeness, estimates the completeness of any areal feature set. This index is also flexible because it is neither affected by discrepancies in the feature outline modelling nor by the degree of abstraction. In addition, the author proposed a simple method to update the official register using the large volume of OSM building data “over-completeness” together with the building data excess indicator. Numéro de notice : A2016-749 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.15292/geodetski-vestnik.2016.03.495-508 En ligne : https://dx.doi.org/10.15292/geodetski-vestnik.2016.03.495-508 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82295
in Geodetski vestnik > vol 60 n° 3 (September - November 2016) . - pp 495 - 508[article]Réservation
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