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Extending the YAGO2 Knowledge Graph with Precise Geospatial Knowledge

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The Semantic Web – ISWC 2019 (ISWC 2019)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 11779))

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Abstract

We extend YAGO2 with geospatial information represented by geometries (e.g., lines, polygons, multipolygons, etc.) encoded by Open Geospatial Consortium standards. The new geospatial information comes from official sources such as the administrative divisions of countries but also from volunteered open data of OpenStreetMap. The resulting knowledge graph is currently the richest in terms of geospatial information publicly available, open source, knowledge graph.

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Notes

  1. 1.

    https://developers.google.com/knowledge-graph/.

  2. 2.

    https://wiki.dbpedia.org/develop/getting-started.

  3. 3.

    https://www.geonames.org/.

  4. 4.

    A gazetteer is a geographical dictionary that is used, in most cases, together with a map. Given a name (i.e., a city or a river) a gazetteer gives geospatial information about that name.

  5. 5.

    https://www.ordnancesurvey.co.uk/.

  6. 6.

    https://www.nidirect.gov.uk/campaigns/ordnance-survey-of-northern-ireland.

  7. 7.

    https://www.osi.ie/.

  8. 8.

    https://gadm.org/.

  9. 9.

    https://www.openstreetmap.org/.

  10. 10.

    https://land.copernicus.eu/pan-european/corine-land-cover.

  11. 11.

    http://linkedopendata.gr/dataset/greek-administrative-geography.

  12. 12.

    https://www.ordnancesurvey.co.uk/business-and-government/products/boundaryline.html.

  13. 13.

    http://osni-spatial-ni.opendata.arcgis.com/.

  14. 14.

    https://www.geofabrik.de/.

  15. 15.

    http://www.geofabrik.de/data/geofabrik-osm-gis-standard-0.7.pdf (Sect. 8.3).

  16. 16.

    https://github.com/SLIPO-EU/TripleGeo.

  17. 17.

    A coordinate reference system (CRS) is a coordinate system that is related to an object (e.g., the Earth, a planar projection of the Earth) through a so-called datum which specifies its origin, scale, and orientation. WGS84 is the latest version of the World Geodetic System (WGS) and was established in 1984.

  18. 18.

    For each matching phase we evaluate \(max\{300, \#matches*0.01\}\) matches.

  19. 19.

    Published under the license found at https://creativecommons.org/licenses/by/4.0/.

  20. 20.

    http://test.strabon.di.uoa.gr/yago2geo.

  21. 21.

    http://test.strabon.di.uoa.gr/SextantOL3/?mapid=m95dp4hsgkafoe40_.

  22. 22.

    Dimos comes from which means municipality in Greek.

  23. 23.

    We do not show the complete GeoSPARQL ontology due to space.

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Acknowledgments

We acknowledge the comments of G. Weikum, J. Hoffart and F. Suchanek on YAGO2geo. Part of this work was done while the third author was visiting Max Planck Institute for Informatics, Saarbrücken.

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Authors and Affiliations

  1. Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens, Greece

    Nikolaos Karalis, Georgios Mandilaras & Manolis Koubarakis

Authors
  1. Nikolaos Karalis
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  2. Georgios Mandilaras
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  3. Manolis Koubarakis
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Corresponding author

Correspondence to Nikolaos Karalis .

Editor information

Editors and Affiliations

  1. Fondazione Bruno Kessler, Trento, Italy

    Chiara Ghidini

  2. Linköping University, Linköping, Sweden

    Olaf Hartig

  3. University of Bonn, Bonn, Germany

    Maria Maleshkova

  4. University of Economics Prague, Prague, Czech Republic

    Vojtěch Svátek

  5. University of Illinois at Chicago, Chicago, IL, USA

    Isabel Cruz

  6. University of Chile, Santiago, Chile

    Aidan Hogan

  7. Memect Technology, Beijing, China

    Jie Song

  8. Mines Saint-Etienne, Saint-Etienne, France

    Maxime Lefrançois

  9. Inria Sophia Antipolis - Méditerranée, Sophia Antipolis, France

    Fabien Gandon

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Karalis, N., Mandilaras, G., Koubarakis, M. (2019). Extending the YAGO2 Knowledge Graph with Precise Geospatial Knowledge. In: Ghidini, C., et al. The Semantic Web – ISWC 2019. ISWC 2019. Lecture Notes in Computer Science(), vol 11779. Springer, Cham. https://doi.org/10.1007/978-3-030-30796-7_12

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  • DOI: https://doi.org/10.1007/978-3-030-30796-7_12

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-30795-0

  • Online ISBN: 978-3-030-30796-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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