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Volunteered Metadata, and Metadata on VGI: Challenges and Current Practices

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Mobile Information Systems Leveraging Volunteered Geographic Information for Earth Observation

Part of the book series: Earth Systems Data and Models ((ESDM,volume 4))

Abstract

In the face of an exploding range of volunteered data initiatives, it is important to maintain good metadata and quality information in order to ensure the appropriate combination and reuse of the resulting data sets. At the same time, there is increasing evidence that validation and quality assessment of data (whether that data be volunteered or ‘official’) can sometimes be usefully crowdsourced, i.e. the required efforts can be distributed to a large number of people. However, as with VGI itself, maintaining the consistency, semantics and reliability of volunteered metadata presents a number of challenges. Initiatives which archive the history of features and tags (e.g. OpenStreetMap) lend themselves to some mapping of disputed features, but among citizen science projects in general there is often limited scope for users to comment on their own or others’ submissions in a consistent way which may be translated to any of the currently accepted geospatial metadata standards. At the same time, platforms which allow the publication of more ‘authoritative’ data sets, (e.g. Geonode and ArcGIS Online), have introduced the option of user comments and ratings. Volunteered metadata (on both authoritative and VG information) is potentially of huge value in assessing fitness for purpose, but some form of standardization is required in order to aggregate diverse ‘opinions’ on the content and quality of data sets and extracts the maximum value from this potentially vital resource. We discuss major challenges and present a set of examples of current practice which may assist in this aggregation.

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Notes

  1. 1.

    https://www.iso.org/standard/53798.html.

  2. 2.

    https://www.iso.org/standard/66197.html.

  3. 3.

    https://www.fgdc.gov/metadata/csdgm-standard.

  4. 4.

    http://www.opengeospatial.org/standards/sensorml.

  5. 5.

    https://www.mturk.com/mturk.

  6. 6.

    http://labelme.csail.mit.edu.

  7. 7.

    http://geonode.org/.

  8. 8.

    https://www.arcgis.com.

  9. 9.

    http://www.metadatagames.org/.

  10. 10.

    http://livingarchives.mah.se/.

  11. 11.

    http://www2.ncrn.cornell.edu/ced2ar-web.

  12. 12.

    http://www.inaturalist.org.

  13. 13.

    https://www.wunderground.com.

  14. 14.

    https://wow.metoffice.gov.uk/.

  15. 15.

    http://www.met.reading.ac.uk/~brugge/col/grade.html.

  16. 16.

    http://www.ala.org.au/.

  17. 17.

    https://crowdsourcing-toolkit.sites.usa.gov/.

  18. 18.

    https://sciStarter.com/.

  19. 19.

    http://www.eurogeoss-broker.eu/.

  20. 20.

    http://inspire-geoportal.ec.europa.eu/editor/.

  21. 21.

    http://www.conservation.org.

  22. 22.

    http://www.ispotnature.org.

  23. 23.

    http://www.geoviqua.org/ProducerQualityModel.htm.

  24. 24.

    http://www.opengeospatial.org/standards/guf.

  25. 25.

    https://www.w3.org/TR/vocab-duv/.

  26. 26.

    http://www.cost.eu/COST_Actions/ca/CA15212.

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Acknowledgements

The work on the JRC app ‘Invasive Alien Species in Europe’ was to a large part developed within the MYGEOSS project, which has received funding from the European Union’s Horizon 2020 research and innovation programme. We thank our colleagues from the European Alien Species Information Network (EASIN) for the in-depth discussions about data validation and our colleague Lorenzino Vaccari for his inputs related to metadata interoperability.

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Authors and Affiliations

  1. European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027, Ispra, VA, Italy

    Lucy Bastin & Sven Schade

  2. School of Engineering and Applied Science, Aston University, Birmingham, B4 7ET, UK

    Lucy Bastin

  3. Department of Computer Science, Maynooth University, Maynooth, Co. Kildare, W23 F2H6, Ireland

    Peter Mooney

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  1. Lucy Bastin
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  2. Sven Schade
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Correspondence to Lucy Bastin .

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Editors and Affiliations

  1. IREA CNR , Milano, Italy

    Gloria Bordogna

  2. IREA CNR , Milano, Italy

    Paola Carrara

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Bastin, L., Schade, S., Mooney, P. (2018). Volunteered Metadata, and Metadata on VGI: Challenges and Current Practices. In: Bordogna, G., Carrara, P. (eds) Mobile Information Systems Leveraging Volunteered Geographic Information for Earth Observation. Earth Systems Data and Models, vol 4. Springer, Cham. https://doi.org/10.1007/978-3-319-70878-2_8

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