Hi Tom,
On Wed, Oct 17, 2012 at 5:10 PM, Tom Morris <[email protected]> wrote:
> The Freebase dump includes direct links for topics which have interwiki
> links:
>
> $ bzgrep /wikipedia/it freebase-datadump-quadruples.tsv.bz2 | head
> /m/010pld /type/object/key /wikipedia/it
> Yorktown_$0028Virginia$0029
> /m/010pld /type/object/key /wikipedia/it_id 1071928
> /m/010pld /type/object/key /wikipedia/it_title
> Yorktown_$0028Virginia$0029
> /m/010vmb /type/object/key /wikipedia/it Walla_Walla
> /m/010vmb /type/object/key /wikipedia/it_id 2353022
> /m/010vmb /type/object/key /wikipedia/it_title Walla_Walla
> /m/011f6 /type/object/key /wikipedia/it Aerodinamica
> /m/011f6 /type/object/key /wikipedia/it_id 47589
> /m/011f6 /type/object/key /wikipedia/it_title
> Aerodinamica
> /m/011m0q /type/object/key /wikipedia/it_id 1633330
>
Do you copy the interwiki links as-is or do you post process them?
We calculated that more than 90% of interlinking errors come from 1-way
links and thus, we use only the 2-way links for owl:sameAs [1]
Best,
Dimitris
[1] http://dx.doi.org/10.1016/j.websem.2012.01.001
> On Wed, Oct 17, 2012 at 9:30 AM, Marco Fossati <[email protected]>wrote:
>
>>
>> However, I am wondering how to generate Freebase links for those
>> lanugage-specific resources that do not have their counterpart in the
>> English chapter. See for instance the Italian Wikipedia article for
>> Maurizio Crozza [1]. There is no English counterpart, hence no data in
>> the English DBpedia, but only in the Italian one [3]. In Freebase, there
>> is indeed some [4].
>> So, the core of my question is: how to generate Freebase links from
>> scratch?
>>
>
> Practically the only way to make the link for Maurizio Crozza is manually,
> because there's no additional information to match on. If Wikipedia had a
> link to MusicBrainz or Freebase had one of his movies and thus a link to
> IMDB, the task might be possible to automate, but with the information
> that's available it's basically an impossible task. One might imagine a
> super sophisticated matching tool which was able Gialappa's
> Band<http://it.wikipedia.org/wiki/Gialappa%27s_Band> references
> from the WP article and the MusicBrainz album title, but I think that's a
> real stretch.
>
>
>> Since there is no real RDF Freebase dump, I assume I cannot use a tool
>> like Silk for the linking task.
>>
>
> It's not the data format that's the problem. You can't use an automated
> guessing tool like Silk unless it's got at least a little bit of
> information to base its guesses on. For topics which *do* have other
> strong identifiers (IMDB, MusicBrainz, Library of Congress, VIAF, etc) or
> additional information (e.g. birth date) it would be possible to do some
> automatic matching, but I don't how many of your articles fall into that
> category.
>
> Tom
>
>
>>
>> [1] http://it.wikipedia.org/wiki/Maurizio_Crozza
>> [2] http://dbpedia.org/resource/Maurizio_Crozza
>> [3] http://it.dbpedia.org/resource/Maurizio_Crozza
>> [4] http://www.freebase.com/view/en/maurizio_crozza
>>
>> On 10/17/12 2:04 PM, Dimitris Kontokostas wrote:
>> > Hi Marco,
>> >
>> > In DBpedia Greek we created a script [1] where we created these links
>> > transitively from the English datasets.
>> > Note that it needs a few modifications to work with the new directory
>> > structure.
>> > If you find it handy and adapt it you can contribute it back for the
>> > other chapters.
>> >
>> > Best,
>> > Dimitris
>> >
>> > [1]
>> >
>> http://dbpedia.hg.sourceforge.net/hgweb/dbpedia/extraction_framework/file/7c499145af2c/scripts/shell-scripts/interlinking
>> >
>> > On Wed, Oct 17, 2012 at 2:37 PM, Marco Fossati <[email protected]
>> > <mailto:[email protected]>> wrote:
>> >
>> > Forgot the links...
>> >
>> > [1] http://wiki.freebase.com/wiki/DBPedia
>> > [2]
>> >
>> http://blog.dbpedia.org/2008/11/15/dbpedia-is-now-interlinked-with-freebase-links-to-opencyc-updated/
>> >
>> > On 10/17/12 1:30 PM, Marco Fossati wrote:
>> > > Hi everyone,
>> > >
>> > > In order to improve the Italian DBpedia interlinkage, it would be
>> > great
>> > > to add sameAs links to Freebase.
>> > > How did you guys do that on the English version?
>> > > I found a couple of posts in the Freebase wiki [1] and DBpedia
>> > blog [2]
>> > > saying it was done some years ago, but I can't find more details.
>> > > Could you please tell me more?
>> > > Thanks!
>> > >
>> > > Cheers,
>> > >
>> > > Marco
>> >
>> >
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>> >
>> >
>> >
>> > --
>> > Kontokostas Dimitris
>>
>>
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>
>
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