Hi John,
On Tue, Jun 15, 2010 at 1:19 PM, John Muth <[email protected]> wrote:
>
> Hello DBpedia people,
>
> We are seeing the following oddity in the data at http://dbpedia.org/sparql
> : 'Opera' redirects to 'About:_URI_scheme'.
>
> Here's our query:
>
> PREFIX dbprop: <http://dbpedia.org/property/>
> select ?link, ?redirect WHERE {
> <http://dbpedia.org/resource/Opera> dbprop:redirect ?link
> . OPTIONAL {?link dbprop:redirect ?redirect}
> }
>
> Here's the JSON response at time of writing:
> { "link": { "type": "uri", "value":
> "http://dbpedia.org/resource/About:_URI_scheme"; }}
> Is it safe to assume that that just happened to be the state of the Opera
> Wikipedia page at the moment the dump from which that data was extracted was
> created?
The reason for the extraction of the triple
<dbpedia:Opera> <dbpprop:redirect> <dbpedia:About:_URI_scheme>
was not the Opera Wikipedia article being a redirect at the time of
the extraction (see
http://en.wikipedia.org/w/index.php?title=Opera&oldid=348918795).
> And that it will remain that way until the next dump and extraction?
To be honest, after looking at this case, I cannot see how this triple
got extracted.
Also, I was not able to reproduce the error with the current version
of the extraction and the Wikipedia version of today. Therefore, you
can assume that the next DBpedia release will fix this problem.
Regards,
max
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