Hoi,
I totally reject the assertion was so bad. I have always had the opinion
that the main issue was an atrocious user interface. Add to this the people
that have Wikipedia notions about quality. They have and had a detrimental
effect on both the quantity and quality of Wikidata.
When you add the functionality that is being build by the datawranglers at
DBpedia, it becomes easy/easier to compare the data from Wikipedias with
Wikidata (and why not Freebase) add what has consensus and curate the
differences. This will enable a true datasense of quality and allows us to
provide a much improved service.
Thanks,
GerardM
On Fri, 27 Sep 2019 at 15:54, Marco Fossati <[email protected]> wrote:
> Hey Sebastian,
>
> On 9/20/19 10:22 AM, Sebastian Hellmann wrote:
> > Not much of Freebase did end up in Wikidata.
>
> Dropping here some pointers to shed light on the migration of Freebase
> to Wikidata, since I was partially involved in the process:
> 1. WikiProject [1];
> 2. the paper behind [2];
> 3. datasets to be migrated [3].
>
> I can confirm that the migration has stalled: as of today, *528
> thousands* Freebase statements were curated by the community, out of *10
> million* ones. By 'curated', I mean approved or rejected.
> These numbers come from two queries against the primary sources tool
> database.
>
> The stall is due to several causes: in my opinion, the most important
> one was the bad quality of sources [4,5] coming from the Knowledge Vault
> project [6].
>
> Cheers,
>
> Marco
>
> [1] https://www.wikidata.org/wiki/Wikidata:WikiProject_Freebase
> [2]
>
> http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/44818.pdf
> [3]
> https://www.wikidata.org/wiki/Wikidata:Primary_sources_tool/Version_1#Data
> [4]
>
> https://www.wikidata.org/wiki/Wikidata_talk:Primary_sources_tool/Archive/2017#Quality_of_sources
> [5]
>
> https://www.wikidata.org/wiki/Wikidata:Requests_for_comment/Semi-automatic_Addition_of_References_to_Wikidata_Statements#A_whitelist_for_sources
> [6] https://www.cs.ubc.ca/~murphyk/Papers/kv-kdd14.pdf
>
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