On Fri, Oct 2, 2015 at 4:51 PM, Federico Leva (Nemo) <nemow...@gmail.com> wrote:
> Thad Guidry, 02/10/2015 21:44: > >> To my eyes, it shows that the Asia continent is still generally void of >> any useful machine-readable Knowledge, in either Freebase or Wikidata. >> (or anywhere else) But this is already a known state of affairs and >> probably will not improve until 1 Million USA students learn Mandarin. :) >> > Extrapolating from Freebase and Wikidata may not be reliable. For example, Baidu is extracting structured microdata from web sites: http://chineseseoshifu.com/blog/baidu-structured-data-wordpress-plugin.html > It also shows that Wikidata and Freebase have different opinions on what's > the centre of Europe (or maybe one of the two has tons of statements on > Cape Town! too lazy to manually calculate labels on the axes). I agree that labeled axes would be useful. Both graphs have a strong vertical lines which line up with each other near the prime meridian (Paris?), so I don't think there's a shift involved. The extra line is on the Wikidata graph. I'm guessing it's Rome, not Cape Town. The Italians are pretty keen Wikidatans, aren't they? The Wikidata graph also seems to exhibit more and bigger strong horizontal features than the Freebase graph, in particular one in ~875AD? which spans half the globe. If there's an intermediary form of the data that includes lat/lon instead of just longitude, an interactive visualization overlaid on a world map with a slider for date and selectable Freebase/Wikidata plots might be fun. Tom
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