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GeoDataspace Bringing the dataspace vision to geodata

GeoDataspace Bringing the dataspace vision to geodata. Matheus Silva Mota. http://lis.ic.unicamp.br. André Santanchè. Lab. of Information Systems. Contextualization. X. XML collection / XML database. Spreadsheets. Some Database. RDBMS A. RDBMS B. Contextualization. X.

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GeoDataspace Bringing the dataspace vision to geodata

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  1. GeoDataspaceBringing the dataspacevision to geodata Matheus Silva Mota http://lis.ic.unicamp.br André Santanchè Lab. of Information Systems

  2. Contextualization X XML collection /XML database Spreadsheets Some Database RDBMS A RDBMS B

  3. Contextualization X Multitude of stand-alone sources XML collection /XML database Spreadsheets Some Database RDBMS A RDBMS B

  4. Data Integration • Two main currents: • Classical integration • ‘Pay-as-you-go’ integration 1975 2005 now

  5. Classical Integration Strategy X Application Meta-DBMS Global Schema RDBMS A RDBMS B

  6. Classical Data Integration • Problems • Heterogeneity -> Costly upfront schema mapping/alignment • Explosion of sources - > Maintain a Global Schema is VERY HARD!

  7. ‘Pay-as-you-go’ integration • Two main currents: • Classical integration • ‘Pay-as-you-go’ integration 1980 2005 now

  8. Dataspace X Application Introspect <<access>> Dataspace System XML collection /XML database RDBMS A Spreadsheets Document Database RDBMS B

  9. Example Linked-data: A Global Dataspace

  10. Contextualization Source: http://lod-cloud.net/ Datasets published following Linked Data ‘format’: 05/2007

  11. Contextualization Source: http://lod-cloud.net/ Datasets published following Linked Data ‘format’: 11/2007

  12. Contextualization Source: http://lod-cloud.net/ Datasets published following Linked Data ‘format’: 2008

  13. Contextualization Source: http://lod-cloud.net/ Datasets published following Linked Data ‘format’: 2009

  14. Contextualization Source: http://lod-cloud.net/ Datasets published following Linked Data ‘format’: 2010

  15. Contextualization Datasets published following Linked Data ‘format’: 2011

  16. Contextualization There is NO global schema Datasets published following Linked Data ‘format’: 2011

  17. Geodataspace

  18. Geodataspaces: Open Challenges

  19. Thanks for your attention. Questions? MatheusMota http://matheusmota.com mota@ic.unicamp.br André Santanchè http://www.ic.unicamp.br/~santanche santanche@ic.unicamp.br http://www.lis.ic.unicamp.br

  20. Geodataspaces: Open Challenges

  21. Backupslides http://www.lis.ic.unicamp.br

  22. Just Another Proposal: LinkedScales

  23. LinkedScales - Overview

  24. LinkedScales

  25. LinkedScales

  26. LinkedScales

  27. LinkedScales

  28. LinkedScales

  29. LinkedScales Transversal Graph

  30. Thanks for your attention. Questions? MatheusMota http://matheusmota.com mota@ic.unicamp.br André Santanchè http://www.ic.unicamp.br/~santanche santanche@ic.unicamp.br http://www.lis.ic.unicamp.br

  31. Backupslides http://www.lis.ic.unicamp.br

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