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The methods and practices of Linked Open Data

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The slides presented in Univ. of Kaohsiung

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The methods and practices of Linked Open Data

  1. 1. 2017.11.24 Dongpo Deng
  2. 2. Data ? https://cooking.nytimes.com/recipes/1016951-pecan-pie
  3. 3. Data on the Web
  4. 4. http://allrecipes.com/recipe/70250/stuffed-chicken-valentino/
  5. 5. Web as Content Management System
  6. 6. Web as Content Management System
  7. 7. schema.org From https://lseo.com/schema-markup-seo/
  8. 8. schema.org
  9. 9. W3C Data on the Web Best Practices https://www.w3.org/TR/dwbp/
  10. 10. Web of Data F545 Person: Publication: ¡¡¡ Course: F545 Organization: City: Book: Open Data Handbook authors worksAt offers isAvailableAt setBook
  11. 11. What do HTTP URIs Identify? HTTP URIs, in the web architecture, have been used to denote documents -- "web pages" informally, or "information resources" more formally. However, with the growth of the Semantic Web, which uses URIs to denote anything at all, the urge to use and practice of using HTTP URIs for arbitrary things grew steadily. https://www.w3.org/DesignIssues/HTTP-URI.html KEY 1 KEY 2 KEY 3 KEY 4 Car URI 0 URI 1 URI 2 URI 3 URI 4 URI 5
  12. 12. HTTP, HTML, URI, and Web HTTP URI Web HTML address identificationcommunication Adopted from Fabien Gandon, Semantic Web and Linked Data or how to link data and schemas on the web. A W3C tutorial at WWW 2014
  13. 13. (Resource Description Framework, RDF) isPlantAt Subject Predicate Object Triple URL URL URL ID Crop Place Admin1 Lat Lon GeonameID 1 43.919 142.485 7429565 2 35.411 139.670 6419488 3 41.291 141.033 2129089 4 39.704 140.913 7441818 5 39.800 141.067 2110852
  14. 14. OWL and RDF
  15. 15. ID Farmer Crop ProductName Place 10601031007 F193920 VC023-10250000 ID Name Organization F193920 2 ID County Town Longititude Latitude VC023-10250000 121.1311 22.9119
  16. 16. http://lod.tw/tap/10601031007 tap: productName 2 22.9119 121.1311 tap: cropName tap: isProductedBy tap: isPlantedBy gn: county gn: town geo: lat geo: lon tap: organization tap: name
  17. 17. ID Name Address TaxID Sell S112376 20 5 22662550 10601031007 TaxID Name Owner 22662550 Rami Baitieh
  18. 18. http://lod.tw/tap/S112376 tap: name http://www.moea.gov.tw/ store/22662550 20 5 Rami Baitieh tap: address moea: name moea: owner http://lod.tw/tap/10601031007 tap: sells owl:sameAs
  19. 19. http://lod.tw/tap/10601031007 tap: productName 2 22.9119121.1311 tap: cropName tap: isProductedBy tap: isPlantedBy gn: county gn: town geo: lat geo: lon tap: organization tap: name http://lod.tw/tap/S112376 tap: name http://www.moea.gov.tw/store/22662550 20 5 Rami Baitieh tap: address moea: name moea: owner http://lod.tw/tap/10601031007 tap: sells owl:sameAs URI !
  20. 20. tap : <http://lod.tw/tap/> tap: productName 2 22.9119 121.1311 tap: cropName tap: isProductedBy tap: isPlantedBy gn: county gn: town geo: lat geo: lon tap: organization tap: name tap:S112376 tap: name moea: 22662550 20 5 Rami Baitieh tap: address tap: name tap: owner tap:10601031007 tap: sells owl: sameAs moea : <http://www.moea.gov.tw/store/>
  21. 21. foaf: Personschema: LocalBusiness rdf:type rdf:type rdf:type rdf:type
  22. 22. DBpedia http://dbpedia.org/resource/Taitung_County http://dbpedia.org/resource/A-mei dbp:birthPlace owl:sameAs
  23. 23. (Web of Data) • : • • • •
  24. 24. 5 • • http://5stardata.info/tw/
  25. 25. This year (2000), in order to encourage people -- especially government data owners -- along the road to good linked data, I have developed this star rating system. https://www.w3.org/DesignIssues/LinkedData.html Photo from 5stardata.info/
  26. 26. ! ! ! 5 ! https://www.w3.org/DesignIssues/LinkedData.html Photo from 5stardata.info/
  27. 27. Linked Data Integration Framework Adopted from http://ldif.wbsg.de/ Standards, vocabularies and ontologiesStandards
  28. 28. Web of Data and Semantic Web Sören Auer, (2011) DBpedia and the Emerging Web of Linked Data
  29. 29. (Linked Data) • Tim Berners-Lee 1. URI 2. HTTP URI 3. URI ( RDF, SPARQL) 4. URI https://www.w3.org/DesignIssues/HTTP-URI.html
  30. 30. (Linked Data) • • ! • (Content negotiation) (e.g. HTML and RDF/XML) • HTML+ RDFa • Metcalfe’s Law
 http://en.wikipedia.org/wiki/Metcalfe%27s_law
  31. 31. LOD Cloud (2007-05-01)LOD Cloud (2008-02-28)LOD Cloud (2009-03-05)LOD Cloud (2010-09-22)LOD Cloud (2011-09-19) LODE-Taiwan Biodiversity Dataset LOD Cloud (2014-08-30)LOD Cloud (2017-08-22)
  32. 32. Taiwan geographic name
  33. 33. Government Linked Open Data
  34. 34. Government Linked Open Data
  35. 35. The growth of LOD cloud 12 28 45 95 203 295 570 1163 The growth of LOD could
  36. 36. :
  37. 37. • ? • ? • ?
  38. 38. • Published on https://data.gov.tw/dataset/7556 • Released via CC-BY 4.0
  39. 39. • 2015/1/4 • • 850,000
  40. 40. Crop names
  41. 41. http://amis.afa.gov.tw/main/Main.aspx
  42. 42. • ? • • • - A A A A A
  43. 43. 226
  44. 44. LandSecNO
  45. 45. XY http://twland.ronny.tw/index/search? lands[]=TC0336,31520000
  46. 46. (AAO) AAO AAO = Farm preparation = Seeding in nursery box = Direct seeding in 7looded paddy 7ield= Treatment for land preparation = Fertilization = Manual weeding = Drainage of ponded water = Solar heat disinfection / = Watering = Treatment for weeding = Applying biopesticide = Applying the insecticides = Insect pest suppression by physical means= Rice harvesting by binder and reaper( ) = Drying grains or beans ( ) = Rice milling ( ) ( ) ( ) ( ) = Practice for barning ( ) = Drying grains or beans ( )
  47. 47. http://tapinfo.coa.gov.tw/work/tapinfo.php?func=where_eat&id=17
  48. 48. http://taft.com.tw/taft/ MenuTracking?StoreID=990142
  49. 49. • 572
  50. 50. AGROVOC http://oek1.fao.org/skosmos/agrovoc/en/
  51. 51. EuroVOC http://eurovoc.europa.eu/drupal/
  52. 52. http://id.loc.gov/authorities/subjects/sh85002415.html
  53. 53. http://cat.aii.caas.cn/
  54. 54. 2 2.2 l  HTML h)p://imi.ipa.go.jp/ns/core/2/ l  XML h)p://imi.ipa.go.jp/ns/core/2/ l  RDF h)p://imi.ipa.go.jp/ns/core/rdf# l  IEPD IEPD l  l  l  l  l  l  l  l  l  l  l  h)p://imi.ipa.go.jp/doc/IMI_Overview_v2.pdf l  h)p://imi.ipa.go.jp/doc/IMI_Core2_TechGuide_v2.pdf http://www.slideshare.net/takeda/ver-22
  55. 55. • 2013 IT • AI (Agriculture Informatics) Made by Japan IT : • (1) • (2) IT ( Made by Japan) • (3) AI • (4)
  56. 56. • IT • / 2014 • “ ” •
  57. 57.   (CAVOC)
  58. 58. (AAO)
  59. 59. • linkedopendata.tw/tap http://linkedopendata.tw/tap
  60. 60. https://www.ubitech.eu/technology/rdfization-as-a-service/
  61. 61. D2R Server
  62. 62. Linked Data on the Web
  63. 63. SPARQL Endpoint . . .
  64. 64. SPAQRL endpoints • D2R server SPARQL endpoints • tap.linkedopendata.tw • store.linkedopendata.tw • res.linkedopendata.tw • jp.linkedopendata.tw
  65. 65. XY XY
  66. 66. XY XY twofood.cc
  67. 67. iCook.tw microdata schema:ingredients
  68. 68. cookpad.com JSON-LD schema: recipeingredient
  69. 69. Chrome extension LinkedFood
  70. 70. dongpo.deng@gmail.com CC-BY 4.0

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