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The road to opening up governmental geospatial data in taiwan


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The road to opening up governmental geospatial data in taiwan

  1. 1. The Road to Opening Up Governmental Geospatial Data in Taiwan Dongpo Deng Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, the Netherlands & Institute of Information Science Academia Sinica, Taiwan 23rd International CODATA Conference, 28-31 Oct. 2012Tuesday, October 30, 2012
  2. 2. The development of Open Data in Taiwan ? • Grassroots communities pay more attentions than governmental agencies • Lack of high-level policy for Open Data development • Wrong concepts: Publishing Data is Open DataTuesday, October 30, 2012
  3. 3. Gov. owns the most geo-dataTuesday, October 30, 2012
  4. 4. Laws for Charging for Geo- Data in Taiwan Land Use Maps and Data Base Maps and Charges and Fees Topographic Maps Act Aerial Photo and Remote Article 10 Sensing Images Standard Fee for Cadastre Maps Data of Land Survey and Mapping Common Version Electronic Maps Land Surveying and Mapping Act Land Surveying and Article 54 Mapping Integrated Data e-GPS ServiceTuesday, October 30, 2012
  5. 5. Different funding models for PSI US Internal EU treasury and Revenue Service, legislation IRS Congress Wealth/jobs =taxes Data Users and Data Other producing other producing agencies agency Open data agencies agency Users Europe: data users pay for dataPeter Weiss, 2004. Borders in Cyberspace: Conflicting Public SectorInformation Policies and their Economic Impacts, Open Access andthe Public Domain in Digital Data and Information for Science, pp.69-73Tuesday, October 30, 2012
  6. 6. Open Geo-Data • By definition of Public Common of Geographic Data (Onsrud, 2004) • Open domain • cannot hold copyright by law, e.g. geo data of US Federal • copyright has expired, e.g. Taiwan Bao Maps (over 100 years ago) • is not subject to copyright, e.g. facts • Open Access • copyrighted, but use open licenses • GPL, CC, ODbLTuesday, October 30, 2012
  7. 7. 4Ps to open geo data Price Policy Policy Principle Principle Process Process PriceTuesday, October 30, 2012
  8. 8. Policies for open geo-data • remove restrictions for accessing governmental geo-data • remove restrictions on reuse of governmental geo-data • use standard formats to release geo-data • Are current laws enough? or create new legal rights to empower the publicTuesday, October 30, 2012
  9. 9. Principles • Completeness • Machine readability • Primary • Non-proprietary • Timeliness • Licensing • Access • Usage CostsTuesday, October 30, 2012
  10. 10. The procedure of Open Governmental GeoData 1.Discover 3.License 2.Process 4.Publish, October 30, 2012
  11. 11. The procedure of Open Governmental GeoData Discovery •What data do we already have? Ask •What data have we been asked for? •Is this data already public? Find the data Then Consider Freedom of Information requests Examine existing publicationsTuesday, October 30, 2012
  12. 12. The procedure of Open Governmental GeoData Process •Are there security concerns? Ask •Will this data impact on privacy? •Is this data at an appropriate level of aggregation? Sanitize Then Anonymize AggregateTuesday, October 30, 2012
  13. 13. The procedure of Open Governmental GeoData License •Do we own this data? •Do we have users’ permission to publish this data? •How should this data be able to be reused? Choose a license Negotiate with owners Remove 3rd-party dataTuesday, October 30, 2012
  14. 14. The procedure of Open Governmental GeoData •Should it be a dump, feed or API? •Is documentation and metadata required? •Is it published in an appropriate format? Convert data format Describe and document Publish to agency site, existing repositoryTuesday, October 30, 2012
  15. 15. 5 star (geo) open data on the web, under open license scanned maps machine-readable data online mapping non-proprietary format GML, KML identifier URI Rdf4Map Linked Data LinkedGeoDataTuesday, October 30, 2012
  16. 16. Taiwan Gazetteer, October 30, 2012
  17. 17. Taiwan Geographic Name Database Data resource:Tuesday, October 30, 2012
  18. 18. RDF Triplify Town as tgn:is_in_Town X as geo:long, October 30, 2012
  19. 19. Link to Geonames.orgTuesday, October 30, 2012
  20. 20. PublishTuesday, October 30, 2012
  21. 21. Conclusion • Governmental geo-data is infrastructure. Pay for using data? • Need a Open Data Policy for opening geo- data • Still a long way to goTuesday, October 30, 2012
  22. 22. Thank you for your attention! Question? deng@itc.nlTuesday, October 30, 2012