> It would indeed be interesting to see which percentage of proposals are > being approved (and stay in Wikidata after a while), and whether there > is a pattern (100% approval on some type of fact that could then be > merged more quickly; or very low approval on something else that would > maybe better revisited for mapping errors or other systematic problems).
+1, I think that's your best bet. Specific properties were much better maintained than others -- identify those that meet the bar for wholesale import and leave the rest to the primary sources tool. On Thu, Sep 24, 2015 at 4:03 PM Markus Krötzsch < [email protected]> wrote: > On 24.09.2015 23:48, James Heald wrote: > > Has anybody actually done an assessment on Freebase and its reliability? > > > > Is it *really* too unreliable to import wholesale? > > From experience with the Primary Sources tool proposals, the quality is > mixed. Some things it proposes are really very valuable, but other > things are also just wrong. I added a few very useful facts and fitting > references based on the suggestions, but I also rejected others. Not > sure what the success rate is for the cases I looked at, but my feeling > is that some kind of "supervised import" approach is really needed when > considering the total amount of facts. > > An issue is that it is often fairly hard to tell if a suggestion is true > or not (mainly in cases where no references are suggested to check). In > other cases, I am just not sure if a fact is correct for the property > used. For example, I recently ended up accepting "architect: Charles > Husband" for Lovell Telescope (Q555130), but to be honest I am not sure > that this is correct: he was the leading engineer contracted to design > the telescope, which seems different from an architect; no official web > site uses the word "architect" it seems; I could not find a better > property though, and it seemed "good enough" to accept it (as opposed to > the post code of the location of this structure, which apparently was > just wrong). > > > > > Are there any stats/progress graphs as to how the actual import is in > > fact going? > > It would indeed be interesting to see which percentage of proposals are > being approved (and stay in Wikidata after a while), and whether there > is a pattern (100% approval on some type of fact that could then be > merged more quickly; or very low approval on something else that would > maybe better revisited for mapping errors or other systematic problems). > > Markus > > > > > > -- James. > > > > > > On 24/09/2015 19:35, Lydia Pintscher wrote: > >> On Thu, Sep 24, 2015 at 8:31 PM, Tom Morris <[email protected]> wrote: > >>>> This is to add MusicBrainz to the primary source tool, not anything > >>>> else? > >>> > >>> > >>> It's apparently worse than that (which I hadn't realized until I > >>> re-read the > >>> transcript). It sounds like it's just going to generate little warning > >>> icons for "bad" facts and not lead to the recording of any new facts > >>> at all. > >>> > >>> 17:22:33 <Lydia_WMDE> we'll also work on getting the extension > >>> deployed that > >>> will help with checking against 3rd party databases > >>> 17:23:33 <Lydia_WMDE> the result of constraint checks and checks > >>> against 3rd > >>> party databases will then be used to display little indicators next to > a > >>> statement in case it is problematic > >>> 17:23:47 <Lydia_WMDE> i hope this way more people become aware of > >>> issues and > >>> can help fix them > >>> 17:24:35 <sjoerddebruin> Do you have any names of databases that are > >>> supported? :) > >>> 17:24:59 <Lydia_WMDE> sjoerddebruin: in the first version the german > >>> national library. it can be extended later > >>> > >>> > >>> I know Freebase is deemed to be nasty and unreliable, but is > MusicBrainz > >>> considered trustworthy enough to import directly or will its facts > >>> need to > >>> be dripped through the primary source soda straw one at a time too? > >> > >> The primary sources tool and the extension that helps us check against > >> other databases are two independent things. > >> Imports from Musicbrainz have been happening since a very long time > >> already. > >> > >> > >> Cheers > >> Lydia > >> > > > > > > _______________________________________________ > > Wikidata mailing list > > [email protected] > > https://lists.wikimedia.org/mailman/listinfo/wikidata > > > _______________________________________________ > Wikidata mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata >
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