Hi John,

> Bug or feature?

Not a bug, so probably a feature.
If the lookup used a Wikipedia redirect to find the query result, then it's
listed in the "Redirects" field. The "Redirects" is not a list of all
redirects.

In the past (before adding redirects to the system), the refcount used to
simply be the number of inlinks for a resource. 

But that's not the case for "redirected" results: There, the refcount is the
number of inlinks for the *redirect* plus a function of the number of
inlinks for the resource (something like inlinks(redirect) +
log2(inlinks(resource))*100). This way, both the redirect itself and the
according resource are weigthed in combination. That's because Wikipedia
redirects can't be always threaded as synonyms. There was an example of
"XYZ_(Bill_Clinton's_dog)" redirecting to "Bill_Clinton" in Wikipedia.
There, you want to assign a weight to the redirect itself, or else Bill
Clinton would show up as result for the keyword "dog"... 

Hope that explanation makes sense.

Best,
Georgi

--
Georgi Kobilarov
www.georgikobilarov.com

> -----Original Message-----
> From: John Muth [mailto:[email protected]]
> Sent: Friday, August 28, 2009 10:19 AM
> To: [email protected]
> Subject: [Dbpedia-discussion] lookup service refcount oddity
> 
> 
> Hello DBpedia people,
> 
> For two slightly different querystrings the lookup service returns the
> same
> resource, but with different refcounts and different redirects.
> Bug or feature?
> 
> http://lookup.dbpedia.org/api/search.asmx/KeywordSearch?
> querystring=antique&maxhits=6&queryclass=
> http://lookup.dbpedia.org/api/search.asmx/KeywordSearch?
> querystring=antiques&maxhits=6&queryclass=
> 
> They both have 'http://dbpedia.org/resource/Antique' as the number one
> result, but once with a refcount of 1596 (antiques) and once with 500
> (antique).
> 
> Thanks,
> John
> 
> 
> 
> http://www.bbc.co.uk/
> This e-mail (and any attachments) is confidential and may contain
> personal views which are not the views of the BBC unless specifically
> stated.
> If you have received it in error, please delete it from your system.
> Do not use, copy or disclose the information in any way nor act in
> reliance on it and notify the sender immediately.
> Please note that the BBC monitors e-mails sent or received.
> Further communication will signify your consent to this.
> 
> 
> -----------------------------------------------------------------------
> -------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> 30-Day
> trial. Simplify your report design, integration and deployment - and
> focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now.  http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Dbpedia-discussion mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion


------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day 
trial. Simplify your report design, integration and deployment - and focus on 
what you do best, core application coding. Discover what's new with 
Crystal Reports now.  http://p.sf.net/sfu/bobj-july
_______________________________________________
Dbpedia-discussion mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion

Reply via email to