Re: [Wikidata] Help needed for Freebase to Wikidata migration

Andy, Yes, your understanding of the /chemicals_of_this_type is correct. It is used to classify "instance of this type" ... and not "part of" parent-child relationships. Here is the actual definition used in Freebase: Chemical compounds that are included in this classification However, there a

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On 17 June 2015 at 20:17, Thomas Pellissier-Tanon wrote: > @Andy >> It seems to me that, before the dats can be imported, we'll need to add >> several new Wikidata properties. Was that your intention? > feel free to start the > property creation process. I'm still at Google for 8 weeks so we hav

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Hello Tom, Thank you very much for your big review! What I intended to do with this page is to get a mapping for some of the most important properties in order to be able to test "in real world conditions" the importation workflow. Not to do a complete mapping of all properties. About which prop

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On 17 June 2015 at 18:15, Egon Willighagen wrote: >> It seems to me that, before the dats can be imported, we'll need to >> add several new Wikidata properties. Was that your intention? > > Yeah, I noted that too. I think this should be discussed in the > Wikichemistry project, and we should also

Re: [Wikidata] Help needed for Freebase to Wikidata migration

@Andy > It seems to me that, before the dats can be imported, we'll need to add several new Wikidata properties. Was that your intention? Run multiple times my mapping script from Freebase to Wikidata is easy so I think I'll run it again as soon as the mapping is really improved and add the added s

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On Tue, Jun 16, 2015 at 2:43 PM, Thomas Pellissier-Tanon wrote: > > I have only added the most used 1000 properties in order to don't hide > important properties with less important ones. But feel free to add > properties that are not listed there. Most frequent isn't the same as most important.

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On Wed, Jun 17, 2015 at 4:01 PM, Andy Mabbett wrote: > On 16 June 2015 at 19:43, Thomas Pellissier-Tanon wrote: > >> I've just added to the page properties for chemistry: >> https://www.wikidata.org/wiki/Wikidata:WikiProject_Freebase/Mapping#Chemistry > > It seems to me that, before the dats can

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On 16 June 2015 at 19:43, Thomas Pellissier-Tanon wrote: > - 698735 triples with media_common/cataloged_instance/isbn13 > - 692557 triples with book/book_edition/isbn > So, I think we may just ignore book/book_edition/isbn and map > media_common/cataloged_instance/isbn13 to P212. What do you thi

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On 16 June 2015 at 19:43, Thomas Pellissier-Tanon wrote: > I've just added to the page properties for chemistry: > https://www.wikidata.org/wiki/Wikidata:WikiProject_Freebase/Mapping#Chemistry It seems to me that, before the dats can be imported, we'll need to add several new Wikidata properties

Re: [Wikidata] Help needed for Freebase to Wikidata migration

:24:20 -0700 From: Thomas Pellissier-Tanon To:wikidata@lists.wikimedia.org Subject: [Wikidata] Help needed for Freebase to Wikidata migration Message-ID: Content-Type: text/plain; charset="utf-8" Hey everyone, As you may already know, I am currently working on the importation o

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Thomas, I agree and think that is the right mapping for ISBN13. Thad +ThadGuidry On Tue, Jun 16, 2015 at 1:43 PM, Thomas Pellissier-Tanon < thoma...@google.com> wrote: > Thank you everyone for your answers! > > About ISBN there are in the Freebase dump: > -

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Thank you everyone for your answers! About ISBN there are in the Freebase dump: - 698735 triples with media_common/cataloged_instance/isbn13 - 692557 triples with book/book_edition/isbn So, I think we may just ignore book/book_edition/isbn and map media_common/cataloged_instance/isbn13 to P212. Wh

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Egon, Chemistry has some very good bits of data in regards to SMILES property in Freebase, btw I did some of that editing work in Freebase myself long ago ! :) Also the Chemical Classifications are pretty useful as well, I would say, but would need careful review work upon importing into Wikidata

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Dear Thomas, I am personally interested in the chemistry bits, and checked the list, but did not see the "chemistry" domain from Freebase: https://www.freebase.com/chemistry/chemical_compound?schema= Is that just a matter of timing, or is it left out because WP/WD already has a good coverage? E

Re: [Wikidata] Help needed for Freebase to Wikidata migration

So Thomas, You want "Type of Value" mapping as well as "Equivalent Property in Wikidata" ? And both types of mapping are useful to you and the team...is that the correct understanding ? Thad +ThadGuidry ___ Wikidat

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Andy, The /book/book_edition/ISBN is a mix of -13 and -10 sometimes even weirder :) It was deprecated (but still holds value) about 3 years ago by Jeff Prucher @ Google and we moved the -13 instances into https://www.freebase.com/media_common/cataloged_instance/isbn13 Although I do not now if t

Re: [Wikidata] Help needed for Freebase to Wikidata migration

ISBN is an interesting case - could we simply say "map to P212", then later do a sanity-check on P212 imports to move ten-character ones to P957? (Or vice versa, depending on which is most common). I am guessing a bot does this already for misplaced values... Andrew. On 16 June 2015 at 11:00, And

Re: [Wikidata] Help needed for Freebase to Wikidata migration

On 16 June 2015 at 00:24, Thomas Pellissier-Tanon wrote: > As you may already know, I am currently working on the importation of > Freebase content into Wikidata [1] using the primary source tool [2]. > > One of the big challenges of the migration is to build a good mapping of the > properties of

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Hi! Yes, such matching are useful. The goal here is to move data from Freebase to Wikidata. So, we don't need 1-1 relation because the direction Wikidata to Freebase is not important. What we want here is that, if we replace the Freebase property by the Wikidata one, the relation remains valid. S

Re: [Wikidata] Help needed for Freebase to Wikidata migration

Hi! > As you may already know, I am currently working on the importation of > Freebase content into Wikidata [1] using the primary source tool [2]. > > One of the big challenges of the migration is to build a good mapping of > the properties of Freebase to Wikidata ones.There are a few thousand o

[Wikidata] Help needed for Freebase to Wikidata migration

Hey everyone, As you may already know, I am currently working on the importation of Freebase content into Wikidata [1] using the primary source tool [2]. One of the big challenges of the migration is to build a good mapping of the properties of Freebase to Wikidata ones.There are a few thousand o