DBpedia Bloopers

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  • *
  • *gemStones vs gemstone
  • Whereas its corresponding Wiki page:
  • Whereas its corresponding Wiki page:
  • Left to right from top: Hafez David Ban Ki-moon Chinhua Achebe Aryabhata Händel Confucius Kofi Annan Chief Joseph Plato Ronaldo Albert Einstein Errol Flynn Mohandas Gandhi Ole Henrik Magga an American farmer Adam Vitruvian Man Man with child Heracles with Telephus
  • *I know cctld means top-level domain. But, for some (non-IT) people, it is unclear. The property page of dbpprop:cctld has no explanation about its intended meaning
  • *I know cctld means top-level domain. But, for some (non-IT) people, it is unclear. The property page of dbpprop:cctld has no explanation about its intended meaning
  • *Here the ingredient is only rice
  • *Here the (main) ingredients are at least of three kinds: rice, minyak samin (ghee), goat meat

Transcript

  • 1. Fariz Darari fadirra _a.t_ _d.o.t_ com @mrlogix Link to these slides: http://www.slideshare.net/fadirra/dbpedia-bloopers CC BY - NC - ND
  • 2. Bloopers Types • Redundant Properties • Incorrect Values • Confusing Properties • Different with Corresponding Wiki Pages DBpedia Bloopers 2
  • 3. Redundant Properties • Properties that have the same intended meaning but are expressed differently • Example: dbpprop:placeOfBurial vs dbpprop:placeofburial 3DBpedia Bloopers
  • 4. Redundant Properties (cont.) http://dbpedia.org/page/Italy (24 Sep 13): 4 vs DBpedia Bloopers dbpprop:placeOfBurial vs dbpprop:placeofburial
  • 5. Redundant Properties (cont.) http://dbpedia.org/page/Italy (24 Sep 13): 5DBpedia Bloopers dbpprop:title vs dbpprop:titles
  • 6. Redundant Properties (cont.) http://dbpedia.org/page/Keema (24 Sep 13): 6DBpedia Bloopers dbpedia-owl:type vs rdf:type
  • 7. Incorrect Values • Good Subject, Good Predicate, Bad Object • Example (http://dbpedia.org/page/Johannesburg - 24 Sep 13): 7DBpedia Bloopers
  • 8. Incorrect Values (cont.) • http://dbpedia.org/page/Indonesia (24 Sep 13): 8DBpedia Bloopers “Flag of Indonesia.svg” should be an image URI
  • 9. Incorrect Values (cont.) • http://dbpedia.org/page/Indonesia (24 Sep 13): 9DBpedia Bloopers Not clear why “National ideology: Pancasila” is used as a value for dbpprop:nationalMotto
  • 10. Incorrect Values (cont.) • http://dbpedia.org/page/Coca-Cola_Amatil (24 Sep 13): 10DBpedia Bloopers Chief_executive_officer is too general to be a value for keyPerson
  • 11. Incorrect Values (cont.) • http://dbpedia.org/page/Komodo_Airport (24 Sep 13): 11 Indonesia should not be a city DBpedia Bloopers
  • 12. Incorrect Values (cont.) • http://dbpedia.org/page/Stanley_Kubrick (24 Sep 13): 12DBpedia Bloopers “Jack Nicholson” - Kubrick
  • 13. Incorrect Values (cont.) • http://dbpedia.org/page/Monty_Python (24 Sep 13): 13DBpedia Bloopers The strings “John Cleese” and “Terry Gilliam” are also its members
  • 14. Incorrect Values (cont.) • http://dbpedia.org/page/Air_France_Flight_1611 (24 Sep 13): 14 Whereas on its corresponding Wiki page (http://en.wikipedia.org/wiki/Air_France_Flight_1611): DBpedia Bloopers
  • 15. Incorrect Values (cont.) • http://dbpedia.org/page/Tom_Cat (24 Sep 13): 15DBpedia Bloopers Should be clear why it is incorrect :)
  • 16. Incorrect Values (cont.) • http://dbpedia.org/page/Farid_Kamil (24 Sep 13): 16DBpedia Bloopers Male is an occupation? Nice, can I resign? :)
  • 17. Incorrect Values (cont.) • Example (at http://dbpedia.org/page/Apa_Kata_Hati): 17 *it’s a movie DBpedia Bloopers It’s released on the 29 of [guess the month + year]
  • 18. Incorrect Values (cont.) http://dbpedia.org/data/Apa_Kata_Hati.rdf (24 Sep 13): http://dbpedia.org/data/Dewa_Cinta.rdf (24 Sep 13): 18DBpedia Bloopers vs Is Melayu = Malay? If so, why don’t just use Malay only?
  • 19. Confusing Properties • Some properties are unclear, their intended meaning is not really described. • Example at http://dbpedia.org/page/Italy - 24 Sep 13: • What is dbpprop:titlebar? Anybody know? 19DBpedia Bloopers
  • 20. Confusing Properties (cont.) 20 • http://dbpedia.org/page/Italy (24 Sep 13): DBpedia Bloopers
  • 21. Confusing Properties (cont.) 21 • http://dbpedia.org/page/Diamond (24 Sep 13): DBpedia Bloopers
  • 22. Different with Wiki Pages Wiki pages and their corresponding DBpedia data are sometimes quite different. 22DBpedia Bloopers
  • 23. Different with Wiki Pages (cont.) • http://dbpedia.org/page/Aqua (24 Sep 13): 23DBpedia Bloopers compared to ...
  • 24. Different with Wiki Pages (cont.) • Wiki page (http://en.wikipedia.org/wiki/Aqua - 24 Sep 13): 24DBpedia Bloopers
  • 25. Different with Wiki Pages (cont.) • http://dbpedia.org/page/Nasi_kebuli (24 Sep 13): 25DBpedia Bloopers Here the (main) ingredient is only rice compared to ...
  • 26. Different with Wiki Pages (cont.) • Wiki page (http://en.wikipedia.org/wiki/Nasi_kebuli - 24 Sep 13): 26DBpedia Bloopers Here the (main) ingredients are at least of three kinds: rice, minyak samin (ghee), and goat meat
  • 27. Notes • DBpedia data is derived from Wikipedia. Consequently, errors on Wikipedia might still exist on DBpedia. • Perhaps Natural Language techniques can help to improve DBpedia. • After all, DBpedia is one of the coolest SemWeb applications! 27DBpedia Bloopers
  • 28. Credits • Icons – https://www.iconfinder.com/icons/34248/download/png/128 – http://wiki.dbpedia.org/images/dbpedia_logo.png • dbpedia.org DBpedia Bloopers 28