Nguyen Thanh Tu wrote: > Hi, > > Problem 1 is not a problem anymore. Sorry to ask you about this > problem. I already found the information of Apple (fruit or tree) in > the answer. How did you arrive at your answer? Just curious based on my last response.
Kingsley > > Thanh-Tu > > On Thu, Dec 17, 2009 at 7:11 PM, Nguyen Thanh Tu > <[email protected] <mailto:[email protected]>> wrote: > > Thank you for your reply. Now I use lookup WS to query in DBpedia. > And I got two problems when I tried to get all resources about Apple: > > 1. I use the URL: > http://lookup.dbpedia.org/query.aspx?q=Apple > > And the results are about Apple Inc, Apple Records, Newton, apple > pie,.., but not about Apple (fruit or tree). > > When I search in web-based (http://lookup.dbpedia.org), I get the > full answers. > > Do you think I should fix something here? > > 2. I don't know why I cannot use another URL: > http://lookup.dbpedia.org/api/search.asmx/KeywordSearch?QueryString=Apple > > Cheers, > Thanh-Tu > > > On Thu, Dec 17, 2009 at 3:44 PM, Richard Cyganiak > <[email protected] <mailto:[email protected]>> wrote: > > > On 17 Dec 2009, at 12:25, Nguyen Thanh Tu wrote: > > I'm wondering whether the disambiguation resource (e.g. > > Apple_%28disambiguation%29<http://dbpedia.org/resource/Apple_%28disambiguation%29>) > > > has all the disambiguation links or not. Because I've > tried 2 disambiguation > resources "Apple" and "Amphibian", and I see the results > are uncompleted > (explained below). > > http://dbpedia.org/resource/Apple_%28disambiguation%29 > > http://dbpedia.org/resource/Amphibian_%28disambiguation%29<http://dbpedia.org/resource/Apple_%28disambiguation%29> > > > > With the first link, the results include the > disambiguation link " > > http://dbpedia.org/resource/apple<http://dbpedia.org/resource/Apple_%28disambiguation%29>", > (not > > "http://dbpedia.org/resource/Apple<http://dbpedia.org/resource/Apple_%28disambiguation%29>"), > > > therefore, I couldn't go from > > Apple_%28disambiguation%29<http://dbpedia.org/resource/Apple_%28disambiguation%29> > to > > http://dbpedia.org/resource/Apple<http://dbpedia.org/resource/Apple_%28disambiguation%29> > . > > > The link in Wikipedia is [[apple]], so DBpedia extracts a > lowercase link. In Wikipedia, the first letter of page names > is case-insensitive. In DBpedia, the entire URI is > case-sensitive (that's prescribed by RDF). So the lower-case > link works in Wikipedia but not in DBpedia. > > I wonder wether it would make sense to normalize the first > character in page names to upper-case in DBpedia. > > With the second link, the results don't include the link > > http://dbpedia.org/resource/<http://dbpedia.org/resource/Apple_%28disambiguation%29> > Amphibian > <http://dbpedia.org/resource/Apple_%28disambiguation%29>, and > > include the link to "Amphibious_vehicle" which doesn't go > to anywhere else > (in fact, it should). > > > The algorithm for extracting disambiguation links is fairly > naïve, it extracts only links that include the original page > name (in this case, "Amphibian"). So it would extract > "Amphibian (song)", "Amphibian aircraft", but not "Amphibious > vehicle". That's a limitation of the algorithm -- to always do > the right thing, it would have to analyse the layout and > semantics of the wiki text, which is a bit beyond the DBpedia > project's means. I'm sure that the DBpedia team would accept > patches that improve the algorithm though -- all the code is open! > > (Currently, "Amphibian aircraft" is not in the extracted RDF > data either. That's because of a bug which has been fixed > after the last extraction.) > > Best, > Richard > > > > > Do you know what I should do to get all the information of > disambiguation > for one word? > Thank you, > Cheers, > Thanh-Tu > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer > Community > Take advantage of Verizon's best-in-class app development > support > A streamlined, 14 day to market process makes app > distribution fast and easy > Join now and get one step closer to millions of Verizon > customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Dbpedia-discussion mailing list > [email protected] > <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > > > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > ------------------------------------------------------------------------ > > _______________________________________________ > Dbpedia-discussion mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > -- Regards, Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen President & CEO OpenLink Software Web: http://www.openlinksw.com ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
