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.
Thanh-Tu On Thu, Dec 17, 2009 at 7:11 PM, Nguyen Thanh Tu <[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]>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] >>> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >>> >> >> >
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