Here is another report of quality problems. How to solve them is worth discussion.
I'm making something simple that, given a person, looks up creative works they are responsible for, looks up the dates of those creative works, then subtracts the birth date of those to get the age at which they created something and then makes a report. When I GET the prolific character designer http://dbpedia.org/resource/Tsunako I can find the games she did art for by following the backward dbo:gameArtist links to the games she designed, which are returned by the GET request. Then I can GET the games, but when I do so, the release dates are often incorrect, for instance http://dbpedia.org/resource/Hyperdimension_Neptunia_Victory has a release date back in the 1930's, which of course predates Tsunako and is invalid. The root cause is that there is an awful blob in the infobox that contains multiple release dates in various geographic regions. In my case, the standard of quality is that I want the earliest release date but I'm not too excited if I am off by ±1 year. (She might have done the illustrations in the prior year, etc.) The above one is obviously absurd and easy to catch, but http://dbpedia.org/page/Hyperdimension_Neptunia_(video_game) exhibits a much more insidious error where it gets the 2015 release date of the Windows edition of a remade and heavily modified version (different combat system, different world travel, new voice acting, new music, ...) which might pass by you if you're not the kind of person who drinks Nep Bull. Interstingly, Wikidata gets the release date right (by my definition) https://www.wikidata.org/wiki/Q1207525 and claims it got it from Wikipedia. It's a run-of-the-mill kind of quality problem that affects users, but it gets into all the questions of "what exactly do you want to model?" as clearly the Wikipedia editors are trying to model it at a very fine grain but users might want a spectrum of different granularities. -- Paul Houle paul.ho...@ontology2.com Try the Ontology2 Edition of DBpedia 2016-04: https://aws.amazon.com/marketplace/pp/B01HMUNH4Q/ ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ DBpedia-discussion mailing list DBpedia-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
