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
Kommentti käyttäjältä robert 22. January 2015 klo 23.39
Ew.
Kommentti käyttäjältä Linhares 23. January 2015 klo 11.42
I think it is because they mapped all the roads and then moved to the details of the country.
Kommentti käyttäjältä okilimu 23. January 2015 klo 18.27
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.
Kommentti käyttäjältä malenki 27. January 2015 klo 08.22
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.
Kommentti käyttäjältä joost schouppe 27. January 2015 klo 16.00
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.
Kommentti käyttäjältä pnorman 27. January 2015 klo 21.00
When did you ship Eric off to North Korea? ;)
Kommentti käyttäjältä lxbarth 28. January 2015 klo 01.57
Haha, yeah, bad photoshopping :)