LODUM talk at ifgi's Spatial @ WWU series
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  • - languages of the semantic web build on families of logics that require a deep understanding of logical inference\n- ontologies: formal specifications of conceptualizations\n- build sophisiticated ontologies, put data in later\n
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  • URI represents an entity (not just a pointer to a website anymore)\nvocabularies = leightweight ontologies\n
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  • URI represents an entity (not just a pointer to a website anymore)\nvocabularies = leightweight ontologies\n
  • URI represents an entity (not just a pointer to a website anymore)\nvocabularies = leightweight ontologies\n
  • URI represents an entity (not just a pointer to a website anymore)\nvocabularies = leightweight ontologies\n
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LODUM talk at ifgi's Spatial @ WWU series Presentation Transcript

  • 1. 1Project Places, Periods and Properties for Linked Science Carsten Keßler – carsten.kessler@uni-muenster.de
  • 2. 2Metadata• Extended version of atalk scheduled for nextweek• More info:consulting.talis.com/events• Questions, feedback:pad.ifgi.de/askme
  • 3. 3Problem: WWU‘s knowledgeis kept in silos Organizations Terminology Formats Literature Faculties Disciplines Articles 01..15 Natural sc. Books Social sc. Presentations Institutes Human sc. 100+ Models and Languages programs Projects Deutsch Software 10.000+ English analogue DFG Nederlands ... BMBF ... EU Databases Industry and Files ... .xls .pdf .dbf ...
  • 4. 3Problem: WWU‘s knowledgeis kept in silos Organizations Terminology Formats Literature Faculties Disciplines ArticlesSolution: 01..15 Natural sc. Books Social sc. Presentations Institutes Human sc. 100+ Models and Languages programs Projects Deutsch Software 10.000+ English analogue DFG Nederlands ... BMBF ... EU Databases Industry and Files ... .xls .pdf .dbf ...
  • 5. 3Problem: WWU‘s knowledgeis kept in silos Organizations Terminology Formats Literature Faculties Disciplines ArticlesSolution: 01..15 Natural sc. Books Social sc. Presentations• Open those silos Institutes Human sc. 100+ Models and• Allow researchers to Languages programseasily publish their data Projects Deutsch Software 10.000+ English analogue& models DFG Nederlands ... BMBF ...• Allow them to easily EU Databasesfind & reuse existing Industry ... and Files .xlsdata & models .pdf .dbf• Allow them to easily ...combine different data
  • 6. 4Outline • Linked Open Data 101 • The LODUM idea • Properties, Places, Periods & Linked Science
  • 7. 5Linked Data 101• Latest „incarnation“ of the Semantic Web• Semantic Web flaws: • expressive logics → complex • focus on ontologies • hardly adopted outside the scientific community• Tim Berners-Lee: „raw data now!“ http://on.ted.com/905J CC Jonan Basterra
  • 8. 6Linked Data in a nutshellSo far: Web of interlinked documents, but linkshave ambiguous semantics
  • 9. 6Linked Data in a nutshellSo far: Web of interlinked documents, but linkshave ambiguous semanticshttp://www.uni- http://www.ulb.uni-
  • 10. 6Linked Data in a nutshellSo far: Web of interlinked documents, but linkshave ambiguous semanticshttp://www.uni- http://www.ulb.uni-
  • 11. 6Linked Data in a nutshellSo far: Web of interlinked documents, but linkshave ambiguous semanticshttp://www.uni- ? What does that link http://www.ulb.uni-
  • 12. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularies
  • 13. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularieshttp://www.uni- http://www.ulb.uni-
  • 14. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularies org:hasSubOrganizationhttp://www.uni- http://www.ulb.uni-
  • 15. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularies org:hasSubOrganizationhttp://www.uni- http://www.ulb.uni- Subject
  • 16. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularies org:hasSubOrganizationhttp://www.uni- http://www.ulb.uni- Subject Predicat
  • 17. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularies org:hasSubOrganizationhttp://www.uni- http://www.ulb.uni- Subject Predicat Object
  • 18. 7Linked Data in a nutshell (ctd.)Web of Data: Interlinked data, semantics of links isdefined in vocabularies org:hasSubOrganizationhttp://www.uni- http://www.ulb.uni- Subject Predicat Object „Triple
  • 19. 8Linked Data Principles http://www.w3.org/DesignIssues/LinkedData.html
  • 20. 8Linked Data Principles http://www.w3.org/DesignIssues/LinkedData.html• Use URIs as names for things • e.g., file:///Users/admin/wwu.png
  • 21. 8Linked Data Principles http://www.w3.org/DesignIssues/LinkedData.html• Use URIs as names for things • e.g., file:///Users/admin/wwu.png• Use HTTP URIs so that people can look up thosenames • e.g., http://www.uni-muenster.de
  • 22. 8Linked Data Principles http://www.w3.org/DesignIssues/LinkedData.html• Use URIs as names for things • e.g., file:///Users/admin/wwu.png• Use HTTP URIs so that people can look up thosenames • e.g., http://www.uni-muenster.de• When someone looks up a URI, provide usefulinformation, using the standards (RDF*, SPARQL) • e.g., http://www.uni-muenster.de foaf:name „Westfälische Wilhelms-Universität Münster“
  • 23. 8Linked Data Principles http://www.w3.org/DesignIssues/LinkedData.html• Use URIs as names for things • e.g., file:///Users/admin/wwu.png• Use HTTP URIs so that people can look up thosenames • e.g., http://www.uni-muenster.de• When someone looks up a URI, provide usefulinformation, using the standards (RDF*, SPARQL) • e.g., http://www.uni-muenster.de foaf:name „Westfälische Wilhelms-Universität Münster“• Include links to other URIs, so that they candiscover more things. • e.g., http://www.uni-muenster.de owl:sameAs http://dbpedia.org/University_of_M %C3%BCnster
  • 24. 9Example<http://carsten.io/> foaf:name "Carsten Keßler" ; foaf:mbox <mailto:carsten.kessler@uni-muenster.de> ; foaf:member <http://musil.uni-muenster.de/> ; foaf:currentProject <http://lodum.de> ; foaf:depiction <http://carsten.io/images/carsten_kessler.jpg> ; foaf:interest <http://dbpedia.org/resource/Linked_Data>, <http://dbpedia.org/resource/Participatory_GIS> ; dc:creator <http://dx.doi.org/10.1007/s10115-011-0382-8>, <http://dx.doi.org/10.1016/j.compenvurbsys.2008.08.004> ;... http://bit.ly/hhFsZb
  • 25. 10Linked (Open) Data
  • 26. 10Linked (Open) Data Linke d
  • 27. 10Linked (Open) Data Linke Open d Data
  • 28. 10Linked (Open) Data Linke Open d Data Linked Open
  • 29. 11Linked DataCloudCC R. Cyganiak & A. Jentzsch: http://lod-cloud.net
  • 30. 11Linked Data WWUCloudCC R. Cyganiak & A. Jentzsch: http://lod-cloud.net
  • 31. 12LODUM Linked Open Data University of Münster
  • 32. 12LODUM Linked Open Data University of Münster• Provide scientific and educational data as Linked Open Data• Open up and interlink existing data• Provide data through a standardized interface for application developers
  • 33. 13LODUM Linked Open Data University of Münster• Goals: • Increase WWU‘s visibility • Foster transdisciplinary research • Improve access to and management of existing data• Interlinking 5+3 Ps: • People, publications, projects, prices, patents (→CRIS) • Properties, places, periods
  • 34. 14Beyond the tech stuff• Comprehensive transparency strategy• Establish workflows to make data, models, software etc. that are used in a publication available• Push Open Access publishing• Following recommendations of the German Research Council• Steering committee for high-level administration• Long-term initiative for the next decade
  • 35. 15WWU Data governance strategy1. Create Incentives (for research and teaching)2. Lower the barriers (technical, economic, legal, institutional)3. Staged licensing model, ranging from confidential to Creative Commons / ODbL4. Rules for publishing scientific data and models5. Reversal of the „burden of proof“, requiring justification for data that are not published
  • 36. 16Properties,places & periods
  • 37. 16 Properties, places & periods a.k.a.topics & space-time
  • 38. 16 Properties, places & periods a.k.a.topics & space-time & Linked Science © Tomi
  • 39. 17Linking disconnected datasets• Conversion to RDF is easy• But: How to find data about the same real-world things in other datasets? •Names are ambiguous• Space-time is an excellent data integrator: something cannot be in two different places at the same time
  • 40. 18Linking disconnected datasets
  • 41. 18Linking disconnected datasetsdbpedia.org/resource/Münstergeonames.org/2867543/
  • 42. 18Linking disconnected datasetsdbpedia.org/resource/Münster dbprop:name Münstergeonames.org/ gn:name Münster2867543/
  • 43. 18Linking disconnected datasetsdbpedia.org/resource/Münster dbprop:name Münster wgs84_pos:lat 51.962944 wgs84_pos:long 7.628695geonames.org/ gn:name Münster2867543/ wgs84_pos:lat 51.96236 wgs84_pos:long 7.62571
  • 44. 18Linking disconnected datasetsdbpedia.org/resource/Münster dbprop:name Münster wgs84_pos:lat 51.962944 wgs84_pos:long 7.628695 sameAsgeonames.org/ gn:name Münster2867543/ wgs84_pos:lat 51.96236 wgs84_pos:long 7.62571
  • 45. 18Linking disconnected datasetsdbpedia.org/resource/Münster statementA statementB statementC sameAs …geonames.org/ statementD2867543/ statementE statementF …
  • 46. 18Linking disconnected datasetsdbpedia.org/resource/Münster statementA statementB statementC sameAs …geonames.org/ statementD2867543/ statementE statementF …
  • 47. 19Use cases
  • 48. 20Brazil deforestation data
  • 49. 2152° North GeoViewer• Integrated map viewer and LOD browser• Developed in the semantics community• Use case: biotopes in NRW, provided by LANUV• Data preview
  • 50. 22Bioinformatics
  • 51. 23Archaeology• Automatic integration of spatial, temporal andthematic data in a tool to document excavationsites• Facilitates work on-site• Integration throughlinks of areas on maps
  • 52. 23Archaeology• Automatic integration of spatial, temporal andthematic data in a tool to document excavationsites• Facilitates work on-site• Integration throughlinks of areas on maps http://ulb.uni-muenster.de/maps/ aerial/… http://ifgi.uni-muenster.de/data/
  • 53. 24Planetology• Looking for reference data in Iceland
  • 54. 24Planetology• Looking for reference data in Iceland
  • 55. 24Planetology• Looking for reference data in Iceland
  • 56. 24Planetology• Looking for reference data in Iceland Query • by theme • spatially / temporally
  • 57. 24Planetology• Looking for reference data in Iceland Query • by theme • spatially / temporally Results http://ulb.uni-muenster.de/maps/aerial/… http://ifgi.uni-muenster.de/data/musil/… http://dbpedia.org/resource/Iceland …
  • 58. 24Planetology• Looking for reference data in Iceland Query • by theme • spatially / temporally Results http://ulb.uni-muenster.de/maps/aerial/… http://ifgi.uni-muenster.de/data/musil/… http://dbpedia.org/resource/Iceland …
  • 59. 25Annotation of interviews in thesocial sciences• Tools for semantic annotation of audio- or video recordings of interviews during transcription• Drastically improve retrievability of data with marginal overhead• Interlink audio and transcript http://www.flickr.com/photos/smiling_da_vinci/14785644/
  • 60. 25Annotation of interviews in thesocial sciences• Tools for semantic annotation of audio- or video recordings of interviews during transcription• Drastically improve retrievability of data with marginal overhead• Interlink audio and transcript http://www.flickr.com/photos/smiling_da_vinci/14785644/
  • 61. 25Annotation of interviews in thesocial sciences• Tools for semantic annotation of audio- or video recordings of interviews during transcription• Drastically improve retrievability of data with marginal overhead• Interlink audio and transcript Question xy Answer xy http://www.flickr.com/photos/smiling_da_vinci/14785644/
  • 62. 25Annotation of interviews in thesocial sciences• Tools for semantic annotation of audio- or video recordings of interviews during transcription• Drastically improve retrievability of data with marginal overhead• Interlink audio and transcript Question xy Answer xy http://www.flickr.com/photos/smiling_da_vinci/14785644/
  • 63. 25Annotation of interviews in thesocial sciences• Tools for semantic annotation of audio- or video recordings of interviews during transcription• Drastically improve retrievability of data with marginal overhead• Interlink audio and transcript Question xy Answer xy http://www.flickr.com/photos/smiling_da_vinci/14785644/
  • 64. 26Datasets we are working on•Library data (Umut) http://data.uni-muenster.de/context/page/ulb/bibItem/4080957•CRIS research database (Johannes) http://data.uni-muenster.de/context/page/cris/person/9325•Amazon deforestation data (Tomi)•NRW biotopes (Henning, Jano et al.)•OpenStreetMap provenance data (Carsten/Johannes/Tomi) Example•WWU Buildings (Markus/Sven)•CSA, Münster bus stops (Johannes)
  • 65. 27State of affairs•Development work is making progress (with 2+2SHs)•http://data.uni-muenster.de to be launched soon!•Establishing contacts to other universities,especially Open University, UK (LUCERO Projekt,http://lucero-project.info) → Linked Universities•Special issue in Semantic Web Journal: Linked Datafor Science and Education•Evaluating funding opportunities & writingproposals
  • 66. 28Almost done…
  • 67. A 29 dv er ti se1st International Workshop on m enLinked Science 2011 (LISC 2011) t• October 23rd or 24rd 2011 in Bonn• At International Semantic Web Conference (ISWC 2o11)• linkedscience.org/events/lisc2011
  • 68. A 30 dv er ti seLinked Data courses m enat ifgi next semester t• Linked Data Engineering Lab Study project w/ Carsten and Tomi https://ifgi.uni-muenster.de/ifgilogin/csa/?id=175• Spatio-temporal and Semantic Modeling for Linked Science Seminar w/ Tomi https://ifgi.uni-muenster.de/ifgilogin/csa/?id=171
  • 69. 31 LODUM Linked Open Data University of MünsterThanks!Visit us at lodum.de and data.uni-muenster.de(soon)