@Jona : If I create a new Scala class here :
"org.dbpedia.extraction.mappings.fr.PopulationExtractor.scala"
And in if my extraction.default.properties file I write :
"org.dbpedia.extraction.mappings.fr.PopulationExtractor"
I have a "ClassNotFound" Exception and my class extend "Extractor" and has
the same name than the file :-(
Best.
Julien.
2013/4/22 Julien Plu <[email protected]>
> Apparently your solution doesn't works because the template "
> Données/Toulouse/évolution_population<http://fr.wikipedia.org/wiki/Mod%C3%A8le:Donn%C3%A9es/Toulouse/%C3%A9volution_population>"
> doesn't appear in the among the "
> dbo:wikiPageUsesTemplate" property values :-(
>
>
> http://data.lirmm.fr/sparql/?default-graph-uri=&query=select+*+where+{%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FToulouse%3E+%3Chttp%3A%2F%2Fdbpedia.org%2Fproperty%2FwikiPageUsesTemplate%3E+%3Ft}&should-sponge=&format=text%2Fhtml&timeout=0&debug=on<http://data.lirmm.fr/sparql/?default-graph-uri=&query=select+*+where+%7B%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FToulouse%3E+%3Chttp%3A%2F%2Fdbpedia.org%2Fproperty%2FwikiPageUsesTemplate%3E+%3Ft%7D&should-sponge=&format=text%2Fhtml&timeout=0&debug=on>
>
> Best.
>
> Julien.
>
>
> 2013/4/22 Julien Plu <[email protected]>
>
>> Hi Julien,
>>
>>
>> >You will store data extracted from the templates pages and then insert
>> them when you parse the article page ?
>>
>> To answer at your question, no, it's not what we have in mind. It's more
>> like "HomepageExtractor" by example. Create a gz file with only the
>> population inside.
>>
>> But yes I think your solution can work too, need to test it :-)
>>
>> Best.
>>
>> Julien.
>>
>>
>> 2013/4/22 Julien Cojan <[email protected]>
>>
>>> Hi Julien, Jonas,
>>>
>>> I just saw your discussion bout externalised templates.
>>> For information, the property prop-fr:population appears on
>>> http://fr.dbpedia.org because the template
>>> Données/Toulouse/évolution_population<http://fr.wikipedia.org/wiki/Mod%C3%A8le:Donn%C3%A9es/Toulouse/%C3%A9volution_population>was
>>> not used when I did the last extraction.
>>>
>>>
>>> About the extractor you want to add, I am not sure I understood how you
>>> want to do.
>>> You will store data extracted from the templates pages and then insert
>>> them when you parse the article page ?
>>> So you need to run the extraction framework twice over the Wikipedia
>>> dump, the template page may appear after in the dump file.
>>>
>>> Wouldn't it be more generic to define some insert/delete SPARQL rules to
>>> handle this once the extraction process is over ?
>>> something like :
>>>
>>> insert {?s ?p ?v} where {?s dbo:wikiPageUsesTemplate ?t . ?t ?p ?v}
>>>
>>> then
>>>
>>> delete {?t ?p ?v} where {?s dbo:wikiPageUsesTemplate ?t . ?t ?p ?v}
>>>
>>>
>>> Cheers,
>>> Julien C.
>>>
>>>
>>> ------------------------------
>>>
>>> *De: *"Julien Plu" <[email protected]>
>>> *À: *"Jona Christopher Sahnwaldt" <[email protected]>
>>> *Cc: *[email protected]
>>> *Envoyé: *Lundi 22 Avril 2013 09:54:59
>>> *Objet: *Re: [Dbpedia-discussion] Problem with extracted data
>>>
>>>
>>> Ok, I will try to code this in a new package "fr" this week. I have just
>>> to see how to write an extractor and learning Scala :-D
>>>
>>> Best.
>>>
>>> Julien.
>>>
>>>
>>> 2013/4/22 Jona Christopher Sahnwaldt <[email protected]>
>>>
>>>> Good idea! It probably wouldn't be hard to write a specific extractor
>>>> for this. Maybe just a few dozen lines.
>>>>
>>>> Only problem is, we may soon have dozens or hundreds of such
>>>> specialized extractors. But we can deal with that. :-)
>>>>
>>>> If you want to write that extractor, we would be happy to include it
>>>> in the extraction framework. Here are some instructions on how you can
>>>> send a pull request on GitHub:
>>>>
>>>> https://github.com/dbpedia/extraction-framework/wiki/Contributing
>>>>
>>>> To keep things manageable and since this extractor is only applicable
>>>> for the French Wikipedia edition, I would suggest you create a new
>>>> package org.dbpedia.extraction.mappings.fr in
>>>> extraction-framework/core/src/main/scala. Like many other extractors,
>>>> this one doesn't really belong in the 'core' module, but the
>>>> extraction framework is not yet very well modularized, so there's no
>>>> better place.
>>>>
>>>> A minor addition: I guess we should change the syntax in the
>>>> extraction config files: currently, all extractor class names that *do
>>>> not contain a dot* are prefixed by "org.dbpedia.extraction.mappings.".
>>>> Example: "AbstractExtractor" becomes
>>>> "org.dbpedia.extraction.mappings.AbstractExtractor". If we change that
>>>> rule and prefix all extractor class names that *start with a dot* by
>>>> "org.dbpedia.extraction.mappings", then you could write
>>>> ".fr.PopulationExtractor" in your extraction config file. With the
>>>> current rule, you would have to write the whole class name
>>>> "org.dbpedia.extraction.mappings.fr.PopulationExtractor". (Of course,
>>>> with the new rule, we would have to add a dot to all extractor class
>>>> names in all config files, but that's no big deal.)
>>>>
>>>> Cheers,
>>>> JC
>>>>
>>>> On 21 April 2013 22:35, Julien Plu <[email protected]>
>>>> wrote:
>>>> > I thought to the same implementation than you Jona but a little bit
>>>> > different. Here my steps :
>>>> >
>>>> > 1) Parse the XML file and retrieve all the data about these
>>>> templates. For
>>>> > example we see a tag "title" with this :
>>>> >
>>>> > Modèle:Données/Toulouse/évolution_population
>>>> >
>>>> > 2) Extract the last "an" and "pop" values
>>>> > 3) Put in a file the triples :
>>>> > <http://fr.dbpedia.org/resource/Toulouse>
>>>> > <http://fr.dbpedia.org/property/population> number pop^^xsd:integer .
>>>> > <http://fr.dbpedia.org/resource/Toulouse>
>>>> > <http://fr.dbpedia.org/property/AnneePopulation> year^^xsd:date .
>>>> >
>>>> > And so on, for all these templates. What do you think ?
>>>> >
>>>> > I know it's not really generic but it's a good beginning to think
>>>> after to a
>>>> > generic solution.
>>>> >
>>>> > Best.
>>>> >
>>>> > Julien.
>>>> >
>>>> >
>>>> > 2013/4/21 Jona Christopher Sahnwaldt <[email protected]>
>>>> >>
>>>> >> Good question. Short answer: No, DBpedia can't handle these
>>>> templates,
>>>> >> and it's hard to change that.
>>>> >>
>>>> >> It would be nice to do it in a generic way: design a system that
>>>> >> allows users of the mappings wiki to add rules how such templates
>>>> >> should be handled in a certain lanuage. Write Scala code that
>>>> executes
>>>> >> these rules and parses the template definitions (e.g.
>>>> >> Modèle:Données/Toulouse/évolution_population) to extract the data and
>>>> >> store it in memory or in an temporary file. Then during the main
>>>> >> extraction, when you find a template call like {{Dernière population
>>>> >> commune de France}}, get the data from storage and generate the
>>>> >> appropriate triples.
>>>> >>
>>>> >> A major effort. Related to
>>>> >> http://wiki.dbpedia.org/gsoc2013/ideas/CrowdsourceTestsAndRules ,
>>>> but
>>>> >> even bigger.
>>>> >>
>>>> >> Maybe it would be easier to extend DBpedia such that the framework
>>>> can
>>>> >> "execute" template definitions.
>>>> >>
>>>> >> Maybe all that is a waste of time because the data will soon move to
>>>> >> Wikidata. We just don't know how soon: Three months? Three years?
>>>> >> Never?
>>>> >>
>>>> >> JC
>>>> >>
>>>> >> On 21 April 2013 22:04, Julien Plu <
>>>> [email protected]>
>>>> >> wrote:
>>>> >> > Thanks Jona for these precisions :-)
>>>> >> >
>>>> >> > Another thing, I would like to know if the extraction framework
>>>> can use
>>>> >> > the
>>>> >> > "data templates". I mean some properties values (in french
>>>> wikipedia for
>>>> >> > french Settlement) are now replaced by templates, for example :
>>>> >> >
>>>> >> > population = {{Dernière population commune de France}} <!-- {{Last
>>>> >> > population french Settlement}} -->
>>>> >> >
>>>> >> > And this data is contained in this kind of pattern :
>>>> >> >
>>>> >> > http://fr.wikipedia.fr/wiki/Modèle:Données/Nom de
>>>> >> > l'article/évolution_population
>>>> >> >
>>>> >> > In english :
>>>> >> >
>>>> >> > Template:Data/article name/evolution_population
>>>> >> >
>>>> >> > By example :
>>>> >> >
>>>> >> >
>>>> http://fr.wikipedia.org/wiki/Modèle:Données/Toulouse/évolution_population
>>>> >> >
>>>> >> > It's always the same address pattern. And these templates look
>>>> like this
>>>> >> > :
>>>> >> >
>>>> >> > <includeonly>{{#switch: {{{1|}}}
>>>> >> > |an1=1793|pop1=52612
>>>> >> > |anX=year|popX=number
>>>> >> > |an=last_year|pop=last_known_number}}</includeonly>
>>>> >> >
>>>> >> > These templates are in the XML dump.
>>>> >> >
>>>> >> > So it has been added in the extraction framework ? if no, what
>>>> files I
>>>> >> > have
>>>> >> > to modify for including these kind of exceptions ?
>>>> >> >
>>>> >> > Best.
>>>> >> >
>>>> >> > Julien.
>>>> >> >
>>>> >> >
>>>> >> > 2013/4/21 Jona Christopher Sahnwaldt <[email protected]>
>>>> >> >>
>>>> >> >> On 21 April 2013 19:38, Julien Plu
>>>> >> >> <[email protected]>
>>>> >> >> wrote:
>>>> >> >> > Hi,
>>>> >> >> >
>>>> >> >> > An idea of what I do wrongly? (see my previous mail below)
>>>> >> >> >
>>>> >> >> > Best.
>>>> >> >> >
>>>> >> >> > Julien.
>>>> >> >> >
>>>> >> >> > From: Julien Plu <[email protected]>
>>>> >> >> > Date: 2013/4/20
>>>> >> >> > Subject: Problem with extracted data
>>>> >> >> > To: "[email protected]"
>>>> >> >> > <[email protected]>
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > Hi,
>>>> >> >> >
>>>> >> >> > After to have imported the extracted data into my virtuoso
>>>> server I
>>>> >> >> > could
>>>> >> >> > see that I had some strange data. By example all my URI start
>>>> with
>>>> >> >> > "http://dbpedia.org"; and not with "http://fr.dbpedia.org"; and
>>>> I don't
>>>> >> >> > have
>>>> >> >> > the "prop-fr" properties too, whereas I put "fr" in all the
>>>> >> >> > extraction
>>>> >> >> > properties file.
>>>> >> >> >
>>>> >> >> > I could see too, if I compare the data from the
>>>> http://fr.dbpedia.org
>>>> >> >> > and
>>>> >> >> > mine they are not the same. By example if you compare these two
>>>> >> >> > sparql
>>>> >> >> > results :
>>>> >> >> >
>>>> >> >> > mine :
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> http://data.lirmm.fr:8890/sparql?default-graph-uri=&query=select+distinct+*+where+%7B%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FToulouse%3E+%3Fp+%3Fo%7D&should-sponge=&format=text%2Fhtml&timeout=0&debug=on
>>>> >> >> >
>>>> >> >> > fr.dbpedia.org :
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> http://fr.dbpedia.org/sparql?default-graph-uri=&query=select+distinct+*+where+%7B%3Chttp%3A%2F%2Ffr.dbpedia.org%2Fresource%2FToulouse%3E+%3Fp+%3Fo%7D&format=text%2Fhtml&timeout=0&debug=on
>>>> >> >> >
>>>> >> >> > In mine, I don't have the "http://www.w3.org/2002/07/owl#sameAs";
>>>> or
>>>> >> >>
>>>> >> >> Do you mean the triples like http://www.w3.org/2002/07/owl#sameAs
>>>> >> >> http://de.dbpedia.org/resource/Toulouse ? To get them, you would
>>>> have
>>>> >> >> to download Wikipedia dumps for several other languages, run
>>>> >> >> InterlangueLinkExtractor on them, and then run
>>>> >> >>
>>>> >> >>
>>>> >> >>
>>>> https://github.com/dbpedia/extraction-framework/blob/master/scripts/src/main/scala/org/dbpedia/extraction/scripts/ProcessInterLanguageLinks.scala
>>>> >> >> on all the result files.
>>>> >> >>
>>>> >> >> Or you could use the links in
>>>> >> >>
>>>> >> >>
>>>> >> >>
>>>> http://downloads.dbpedia.org/3.8/fr/interlanguage_links_same_as_chapters_fr.ttl.bz2
>>>> >> >> or a similar file.
>>>> >> >>
>>>> >> >> > "http://fr.dbpedia.org/property/population"; properties among
>>>> many
>>>> >> >> > others.
>>>> >> >> >
>>>> >> >> > In attachment my extraction property file.
>>>> >> >> >
>>>> >> >> > What I did wrong ?
>>>> >> >> >
>>>> >> >> > Best.
>>>> >> >> >
>>>> >> >> > Julien.
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> ------------------------------------------------------------------------------
>>>> >> >> > Precog is a next-generation analytics platform capable of
>>>> advanced
>>>> >> >> > analytics on semi-structured data. The platform includes APIs
>>>> for
>>>> >> >> > building
>>>> >> >> > apps and a phenomenal toolset for data science. Developers can
>>>> use
>>>> >> >> > our toolset for easy data analysis & visualization. Get a free
>>>> >> >> > account!
>>>> >> >> > http://www2.precog.com/precogplatform/slashdotnewsletter
>>>> >> >> > _______________________________________________
>>>> >> >> > Dbpedia-discussion mailing list
>>>> >> >> > [email protected]
>>>> >> >> > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
>>>> >> >> >
>>>> >> >
>>>> >> >
>>>> >
>>>> >
>>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
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>>> analytics on semi-structured data. The platform includes APIs for
>>> building
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>>>
>>>
>>
>
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