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Lars Harrie

Lars Harrie

Professor

Lars Harrie

Synchronising geometric representations for map mashups using relative positioning and Linked Data

Author

  • Weiming Huang
  • Ali Mansourian
  • Ehsan Abdolmajidi
  • Haiqi Xu
  • Lars Harrie

Summary, in English

Map mashups, as a common way of presenting geospatial information on the Web, are generally created by spatially overlaying thematic information on top of various base maps. This simple overlay approach often raises geometric deficiencies due to geometric uncertainties in the data. This issue is particularly apparent in a multi-scale context because the thematic data seldom have synchronised level of detail with the base map. In this study, we propose, develop, implement and evaluate a relative positioning approach based on shared geometries and relative coordinates to synchronise geometric representations for map mashups through several scales. To realise the relative positioning between datasets, we adopt a Linked Data–based technical framework in which the data are organised according to ontologies that are designed based on the GeoSPARQL vocabulary. A prototype system is developed to demonstrate the feasibility and usability of the relative positioning approach. The results show that the approach synchronises and integrates the geometries of thematic data and the base map effectively, and the thematic data are automatically tailored for multi-scale visualisation. The proposed framework can be used as a new way of modelling geospatial data on the Web, with merits in terms of both data visualisation and querying.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • MECW: The Middle East in the Contemporary World
  • Centre for Geographical Information Systems (GIS Centre)
  • eSSENCE: The e-Science Collaboration

Publishing year

2018-06-03

Language

English

Pages

1117-1137

Publication/Series

International Journal of Geographical Information Science

Volume

32

Issue

6

Document type

Journal article

Publisher

Taylor & Francis

Topic

  • Other Earth and Related Environmental Sciences

Keywords

  • geometry synchronisation
  • Linked Data
  • Map mashups
  • multiple representation
  • relative positioning

Status

Published

ISBN/ISSN/Other

  • ISSN: 1365-8816