[david927]

I understood that there's a significant quality difference with Freebase: that there are a lot of places in Wikidata showing values where a reference should be. Is that true?

And do you have any way to contact you? (My email is in my profile.)

[emw]

From the first chart in [1], which gives Wikidata statistics for 2014-11-10:

- Total statements: 50,457,200

- Items with referenced statements: 8,188,516 (49.41%)

- Statements referenced to Wikipedia: 18,614,138 (36.89%)

- Statements referenced to other sources: 7,466,240 (14.80%)

"References" to Wikipedia are obviously frowned about, so the relevant datum here is that 14.80% of Wikidata's 50,457,200 statements have references.

I have no idea what that figure is for Freebase. Anyone know how to find what proportion of statements in Freebase are referenced?

The best way to contact me about this is to leave a note at https://www.wikidata.org/wiki/User_talk:Emw.

[1] http://tools.wmflabs.org/wikidata-todo/stats.php