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Interconnexion et visualisation de ressources géoréférencées du Web de données à l’aide d’un référentiel topographique de support

Abstract : Many resources published on the Web of data are related to spatial references that describe their location. These spatial references are a valuable asset for interlinking and visualizing data over the Web. However, these spatial references may be presented with different levels of detail and different geometric modelling from one data source to another. These differences are a major challenge for using geometries comparison as a criterion for interlinking georeferenced resources. This challenge is even amplified more due to the open and often volunteered nature of the data that causes geometric heterogeneities between the resources of a same data source. Furthermore, Web mapping applications of georeferenced data are limited when it comes to visualize data at different scales.In this PhD thesis, we propose a vocabulary for formalizing the knowledge about the characteristics of every single geometry in a dataset. We propose a semi-automatic approach for acquiring this knowledge by using geographic reference data. Then, we propose to use this knowledge in approach for adapting dynamically the setting of the comparison of each pair of geometries during an interlinking process. We propose an additional interlinking approach based on geographic reference data for detecting n:m links between data sources. Finally, we propose Web mapping applications for georeferenced resources that remain readable at different map scales
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https://tel.archives-ouvertes.fr/tel-01787128
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Submitted on : Monday, May 7, 2018 - 12:00:07 PM
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Abdelfettah Feliachi. Interconnexion et visualisation de ressources géoréférencées du Web de données à l’aide d’un référentiel topographique de support. Géographie. Université Paris-Est, 2017. Français. ⟨NNT : 2017PESC1179⟩. ⟨tel-01787128⟩

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