OpenStreetMap
The OpenStreetMap contributions in Japan from 2007 to 2014 show a fascinating pattern. Why do you think they look this way?
OpenStreetMap contributions in Japan from 2007 to 2014 by Eric Fischer. 2007: blue, 2008: purple, 2010: red, 2012: orange, 2014: yellow.
Discussion
Commentaire de robert le 22 janvier 2015 à 23 h 39
Ew.
Commentaire de Linhares le 23 janvier 2015 à 11 h 42
I think it is because they mapped all the roads and then moved to the details of the country.
Commentaire de okilimu le 23 janvier 2015 à 18 h 27
They made a lot of imports, too. Before 2011, they imported forests. In 2011, after the tsunami and fukushima desaster, Yahoo Japan gave OSM the ability to import a streets in Japan. But the japanese OSM Community is very active, too.
Commentaire de malenki le 27 janvier 2015 à 8 h 22
Like a lot of things the visualized data of Japan may look beautiful – but a close look makes you shiver. I am thinking of the imports I had a look at and for which I assume the most errors still won’t be fixed.
Commentaire de joost schouppe le 27 janvier 2015 à 16 h 00
Because of population density? This is what Japan looks like at night, a good proxy for population density within a country (actually population density * prosperity * measures to decrease light polution). Striking similarity, no. It could be interesting to overlay both images and look for outliers. A bit like I believe members of your team did some time back, but using image complexity in stead of population density as a predictor of expected data density.
Commentaire de pnorman le 27 janvier 2015 à 21 h 00
When did you ship Eric off to North Korea? ;)
Commentaire de lxbarth le 28 janvier 2015 à 1 h 57
Haha, yeah, bad photoshopping :)