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2010 06 ipaw_prv
- 1. Publishing and ConsumingProvenance Metadata on the Web of Linked Data Olaf Hartig Jun Zhao Humboldt-Universität zu Berlin University of Oxford TheThird International Provenance and Annotation Workshop 2010
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- 3. The running exampleThe Provenance Vocabulary Overview
- 4. Design principles Publishingprovenance metadata
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- 6. Use URIs asnames for things
- 7. Use HTTP URIsso that people can look up those names.
- 8. When someone looksup a URI, provide useful information.
- 9. Include links toother URIs so that they can discover more things.
- 10. Tim Berners-Lee, July2006 http://www.w3.org/DesignIssues/LinkedData.html
- 11. Use URIs asnames for things
- 12. Use HTTP URIsso that people can look up those names.
- 13. When someone looksup a URI, provide useful information.
- 14. Include links toother URIs so that they can discover more things.
- 15. Tim Berners-Lee, July2006 http://www.w3.org/DesignIssues/LinkedData.html
- 16. Use URIs asnames for things
- 17. Use HTTPURIs so that people can look up those names.
- 18. When someone looksup a URI, provide useful information.
- 19. Include links toother URIs so that they can discover more things.
- 20. Tim Berners-Lee, July2006 http://www.w3.org/DesignIssues/LinkedData.html
- 21. Use URIs asnames for things
- 22. Use HTTP URIsso that people can look up those names.
- 23. When someone looksup a URI, provide useful information.
- 24. Include links toother URIs so that they can discover more things.
- 25. Tim Berners-Lee, July2006 http://www.w3.org/DesignIssues/LinkedData.html is located in
- 26. Use URIs asnames for things
- 27. Use HTTP URIsso that people can look up those names.
- 28. When someone looksup a URI, provide useful information.
- 29. Include links to other URIs so that they can discover more things.
- 30. Tim Berners-Lee, July2006 http://www.w3.org/DesignIssues/LinkedData.html is located in is part of has A level ranking
- 31. Autonomous & Distributedis located in is part of has A level ranking
- 32. Replicate & Republishis located in is part of has A level ranking
- 33. Web Data ProvenanceInformation in conflicts and of varied quality interwined
- 34.
- 35. Track and traceprovenance information about data on the Web
- 36. Represent the creationof a data item and the provenance information about the entities who made the data accessible on the Web Hartig O. and Zhao J. Using Web Data Provenance for Quality Assessment. SWPM/ISWC 2009
- 37. The Running ExampleWe have two relational databases
- 38. FlyBase Centric geneticdatabase about Fruit Fly
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- 40. Public access-only JDBCaccess point FlyTED Specialized database of gene expression images
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- 44. Linked Data PublicationURI Deference request URI Deference request FlyTED RDB FlyBase RDB FlyTED in RDF RDF store-FT SPARQL Endpoint JDBC endpoint Triplify server Pubby server Data transformation on-the-fly Native SPARQL queries
- 45. Data “Garbage” URIDeference request URI Deference request FT1 (FlyTED v1) RDB FT2 (FlyTED v2) RDB FlyBase RDB FT1 in RDF FT2 in RDF RDF store-FT1 RDF store-FT2 SPARQL Endpoint 1 SPARQL Endpoint 2 JDBC endpoint Triplify server Pubby server 1 Pubby server 2
- 46. flyted:hybridisedTranscriptionOf Data LinksDifferent biological entities n-1 mappings
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- 48.
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- 50. Am I gettingthe latest gene expression information from FlyTED?
- 51. Are I lookingat the expression information about the exact gene that I am interested in?
- 52. The Provenance Vocabularyhttp://purl.org/net/provenance/
- 53. Our Goal Integrateprovenance metadata into the Web of data to enable information quality assessment
- 54. Vocabulary to describeprovenance of Linked Data on the Web
- 55. Easy to useBy people who provide Linked Data
- 56. By developers ofLinked Data publishing tools
- 57. Overview of theVocabulary Defined as an OWL ontology
- 58. Partitioned into: Coreontology
- 59. Supplementary modules: types,integrity verification
- 60. Overview of theVocabulary
- 61. The Running ExampleURI Deference request FlyBase RDB Triplify server JDBC endpoint
- 62. Example ex:data-00 a prv:DataItem ; foaf:primaryTopic <http://example.org/gene/0030840> . prv:createdBy [ a prv:DataCreation ; prv:performedAt "2010-03-01...00:00"^^xsd:dateTime ; prv:performedBy <http://example.org/triplify> ; prv:usedGuideline _:a ; prv:usedData _:b ] . <http://example.org/triplify> a prv:NonHumanActor ; rdfs:comment "Instance of Triplify V0.5" ; prv:operatedBy <http://olafhartig.de/foaf.rdf#olaf> . The data item was created by a process, performed at a given time and performed by a service ex:triplify that was operated by myfoaf:olaf .
- 63. Example cont. _:a a prvTypes:TriplifyConfiguration, prv:CreationGuideline; prv:createdBy [ a prv:DataCreation ; prv:performedBy <http://olafhartig.de/foaf.rdf#olaf> ] . _:b a prv:DataItem ; prv:retrievedBy [ a prv:DataAccess ; prv:performedAt "2010-03-01T12...00:00"^^xsd:dateTime ; prv:performedBy <http://example.org/triplify> ; prv:accessedService [ a prv:DataProvidingService , prvTypes:JDBCService ; foaf:homepage <http://flybase.org/> ] ] . The source data item _:b used to create the data item described before was retrieved by ex:triplify by accessing a public JDBC access point.
- 64. Design Principles Usabilityand understandability
- 65. No specific granularityprescribed Linked Data objects or linked dataset Other vocabularies for more detailed descriptions of certain aspects OPMV, PML, HTTP vocab, Changeset, etc. Schema-level links to related Vocabularies e.g. prv:Actor owl:equivalentClass foaf:Agent
- 66. Publishing provenance metadataData about an entity
- 67. Publishing provenance metadataPublish provenance statements along with the data Data about an entity _:d1 prv:createdBy ....
- 68. Publishing provenance metadatadct:isPartOf Data about an entity _:d1 prv:createdBy .... VoiD description about _:ds1
- 69. Publishing provenance metadatadct:isPartOf VoiD description about _:ds1 _:ds1 prv:createdBy .... Data about an entity _:d1 prv:createdBy ....
- 70. Provenance-enabled Publication Publishprovenance metadata as Linked Data
- 71. Automatic generationof provenance metadata and simple effort
- 72. Metadata components forwidely used Linked Data publishing tools Triplify
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- 74.
- 75. Am I gettingthe latest gene expression information from FlyTED?
- 76. Comparing the Timelinessof Genes Find flyted genes that are linked to flybase ones
- 77. Compare the timelinessvalue of these flyted genes
- 78. Comparing the Timelinessof Genes Find flyted genes that are linked to flybase ones
- 79. Compare the timelinessvalue of these flyted genes select count(distinct ?gene) as ?count ?gene ?flybase Where { ?gene a <http://purl.org/net/flyted/schema/Probe>; flyted:hybridisedTranscriptionOf ?flybase } group by ?flybase order by desc(?count)
- 80. URI Deference requestFlyTED RDB FlyTED in RDF RDF store-FT SPARQL Endpoint Pubby server
- 81. Find the creationtime of a gene PREFIX dcterms: <http://purl.org/dc/terms/> PREFIX prv: <http://purl.org/net/provenance/ns#> SELECT ?creation_time WHERE { <h ttp://purl.org/net/open-biomed/id/flyted/probe/p-cup> dcterms:isPartOf ?dataset . ?dataset a void:Dataset ?dataset prv:createdBy [ prv:usedData ?source ] . ?source prv:createdBy [ a prv:DataCreation; prv:performedAt ?creation_time] . }
- 82. Result 9 FlyBasegenes could have been linked to at least one outdated FlyTED gene URI
- 83. Developers of LinkedData applications could have used data of poor quality
- 84. Future Work Alignmentwith other provenance-related vocabularies and models
- 85. Additional modules forspecific aspects that are not covered by other vocabularies
- 86. Integration in otherpublication tools
- 87. These slides havebeen created by Jun Zhao and Olaf Hartig This work is licensed under a Creative Commons Attribution-Share Alike 3.0 License ( http://creativecommons.org/licenses/by-sa/3.0/ )