My academic seminar presentation on Linked Data

1. Web == One huge DB A seminar on Linked Data and Semantic Web

2. The Web of Linked Documents

4. Unstructured hyperlinks

5. Disconnected Data

6. What is Semantic Web? “ The first step is putting data on the Web in a form that machines can naturally understand, or converting it to that form. This creates what I call a Semantic Web – a web of data that can be processed directly or indirectly by machines.” ~ Tom Heath

7. The Web of Linked Data

9. Designed for machines and humans.

10. Links between things-things and things-and its description.

11. Encourages reuse, reduces redundancy

12. Enables to add more value to data over the network.

14. HTTP

15. RDF (Resource Description Framework)

16. RDFS/OWL

19. http://dbpedia.org/resource/Model_Engieering_College

20. http://sws.geonames.org/4671654/

22. Using http:// URIs to identify things allows people to look these things up

24. Descibes relations based on triples; subject-predicate-object

29. Data discovery in RDF

31. Clients can look up every URI in and RDF graph over the Web to get addictional info.

32. Easy description of relations with the help of RDFS

34. Provide useful information in RDF

35. Include RDF links to other URIs

39. The Linking Open Data Project

41. Take existing open data sets

42. Make them available on the Web in RDF

43. Interlink them with other data sets

44. Began early 2007

45. LOD Cloud as on November 2007

46. LOD Cloud as on March 2008

47. LOD Cloud as on March 2009

48. The latest LOD cloud as on July 2009

53. Search for the right URIs to link to using search interfaces if provided. Or using LD browsers

54. Use services like Uriqr to search for existing URIs and choose the most popular one suiting your need.

59. A mapping is done to produce the RDF files.

60. Tools like D2R server and OpenLink Virtuoso is used.

61. RDB to Linked Data

63. Retrieves data from RDF

65. Linked Data Applications

67. Talis Aspire

68. DERI pipes

70. Link Maintenance

71. Licensing

72. Trust, Quality, Relevance

74. Machines will finally be able to search!!

75. Researchers can have a wide range of related data to dig into.

76. “ RAW DATA NOW! ” ~Tim Berners