On Wed, Oct 17, 2012 at 5:29 PM, Tom Morris <[email protected]> wrote:
> On Wed, Oct 17, 2012 at 10:23 AM, Dimitris Kontokostas
> <[email protected]>wrote:
>
>> 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
>>>
>>>
>> Do you copy the interwiki links as-is or do you post process them?
>>
>
> I don't do anything. You'd have to ask the Freebase team what links they
> use (although it should be pretty easy to figure out by comparing the
> Freebase dump with the interwiki links).
>
I thought you were in the team, my mistake...
> 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]
>
> $40? I'm sure it's a wonderful paper, but I think I'll wait for the movie
> version.
>
This is the free link ;)
http://www.websemanticsjournal.org/index.php/ps/article/view/317
>
> Tom
>
>
>>
>> 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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>>>
>>>
>>
>>
>> --
>> Kontokostas Dimitris
>>
>
>
--
Kontokostas Dimitris
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