- From: Kavitha Srinivas <ksrinivs@gmail.com>
- Date: Mon, 10 Aug 2009 17:05:31 -0400
- To: Kingsley Idehen <kidehen@openlinksw.com>
- Cc: Pat Hayes <phayes@ihmc.us>, Anja Jentzsch <anja@anjeve.de>, public-lod community <public-lod@w3.org>, Tim Finin <finin@cs.umbc.edu>, dbpedia-discussion@lists.sourceforge.net
Yes will fix URIs and load to the ftp server. Sorry about that issue. Kavitha On Aug 10, 2009, at 5:00 PM, Kingsley Idehen wrote: > Pat Hayes wrote: >> This website should be taken down immediately, before it does >> serious harm. It is irresponsible to publish such off-the-wall >> equivalentClass assertions. The presence or absence of >> hierarchies, or the similarity to tags, are completely irrelevant: >> the semantics of owl:equivalentClass are quite unambiguous and are >> fixed normatively by the OWL specs, so these assertions have a >> definite meaning; and with that meaning they are wildly, >> irresponsibly and dangerously false. Tim is treating it lightly, >> but this is in fact quite a serious matter. Please DISABLE public >> access to this resource until this is fixed. >> >> Pat Hayes > Pat, > > Note, I loaded the triples into a separate Named Graph. The data is > hosted in the same Virtuoso instance that hosts DBpedia, but not > part of the main DBpedia data set. The Linked Data Spaces are > partitioned. This goes back to the very point I believe Alan was > making re. linksets and core knowledgebase datasets. Stuff can go > wrong, and I don't have to make a more problematic DELETE or UPDATE > against the entire DBpedia Named Graph in the Quad Store. Thus, > lets assume this needs to be scrapped, all I have to do is scrap > the Named Graph hosting the broken datasets using SPARUL (Update or > Delete). On the other hand, lets assume I feel this is all fine, > but you disagree vehemently, all that happens is that when I SPARQL > I have the option to inference (albeit questionably) using these > rules, while you don't, since its just my relatively warped "world > view" (from say your view point) hosted in my own Linked Data Space > that happens to be Web accessible :-) > > Just Another nice dog-fooding example, across many vectors re. > Linked Data and the Web. > > Kavitha: At the very least you need to fix the Freebase URIs, and > then I would also suggest the options Tim Finn offered. Once > implemented, I can just reload :-) > > Kingsley >> >> >> On Aug 10, 2009, at 3:27 PM, Tim Finin wrote: >> >>> Kavitha Srinivas wrote: >>>> I understand what you are saying -- but some of this reflects >>>> the way >>>> types are associated with freebase instances. The types are >>>> more like >>>> 'tags' in the sense that there is no hierarchy, but each >>>> instance is >>>> annotated with multiple types. So an artist would in fact be >>>> annotated >>>> with person reliably (and probably less consistently with >>>> /music/artist). Similar issues with Uyhurs, murdered children >>>> etc. The >>>> issue is differences in modeling granularity as well. Perhaps a >>>> better >>>> thing to look at are types where the YAGO types map to Wordnet >>>> (this is >>>> usually at a coarser level of granularity). >>> >>> I think you need a different property to express the relation >>> between the >>> freebase types and yago classes. The whole point of grounding >>> OWL in logic is >>> to allow people and computers to draw inferences from the OWL >>> statements. Those >>> statements in the dump do assert that anything that is in the set >>> yago:Uyghurs >>> is also in the set yago:MurderedChildren and vice versa. >>> >>> Why not use rdfs:subClassOf to relate a yago class to a freebase >>> type when every >>> member of the class is tagged with the type but not everything >>> tagged with the >>> type is a member of the class. >>> >>> skos:narrower is another option, maybe. >>> >>> >> >> ------------------------------------------------------------ >> IHMC (850)434 8903 or (650)494 >> 3973 >> 40 South Alcaniz St. (850)202 4416 office >> Pensacola (850)202 4440 fax >> FL 32502 (850)291 0667 mobile >> phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes >> >> >> >> >> >> > > > -- > > > Regards, > > Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen > President & CEO OpenLink Software Web: http://www.openlinksw.com > > > >
Received on Monday, 10 August 2009 21:06:15 UTC