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I counted all of the yurts in Mongolia using machine learning

https://monroeclinton.com/counting-all-yurts-in-mongolia/
71•furkansahin•4h ago

Comments

furyg3•2h ago
Regarding the discussion of ger/yurt districts in cities, it's also important not to underestimate the cultural significance of the nomadic lifestyle and yurt culture.

Changing climate (desertification) and economic conditions have meant that a lot of people have given up their nomadic lifestyle and moved to cities or their outskirts (mostly Ulaanbaatar). They often are reluctant to do so, it's a big step, and they often hope it is a temporary one.

They set up their yurts not only because of housing shortages, but many are also hesitant to move into apartments or other permanent structures as it's seen as the last step in giving up this nomadic lifestyle. Often they are setting up their yurts next to permanent structures, either because they are living in the 'yard' of relatives or to expand their residences and stay connected to their culture.

You can see examples of this in the first images.

Cthulhu_•1h ago
It also sounds like they would already have one, and / or that it would be relatively easy to move if they want or need to. Don't they go back to their more rural homes for special events, for example?
qq66•1h ago
Agree - ger living is not necessarily a failure of public policy, it could just be a cultural decision. Even Genghis Khan lived in a ger. Of course, for some people, it's likely to be a matter of necessity, for others, a matter of choice, but it's not prima facie bad.

> When ineffective policy results in a large chunk of the populace generationally living in yurts on the outskirts of urban areas, it’s clear that there is failure.

That's not at all clear.

andrewstuart•2h ago
Yurt is a lot of fun to say. Great word.
shpx•1h ago
It seems like a waste that you didn't use the 89,259 yurts that are already outlined in OpenStreetMap as input, though you would've probably had issues aligning the outlines with google maps imagery

https://taginfo.geofabrik.de/asia:mongolia/tags/building=ger

I'm also guessing your model doesn't handle yurts that are on the border of a tile.

Finally, that's a much smaller number than I expected for a country of 3 million.

rsynnott•1h ago
> Finally, that's a much smaller number than I expected for a country of 3 million.

172k of them? That still seems like quite a lot of yurts; certainly more yurts per capita than anyone else has.

shpx•1h ago
Wikipedia says 30% of 3.5 million are "nomadic or semi-nomadic", which would be 6 people to a yurt. I couldn't figure out what percentage of the country was done, but if he did 270,559/37,258,617 zoom 17 tiles then there could be another 100k in the other 99% of the data.

Living away from other people and not next to anything in particular is what I associate with nomads, the heuristic of searching a radius around landmarks doesn't make sense to me. I scrolled around a random remote desert area in Mongolia on Google Maps and found a yurt every couple of minutes.

shiandow•45m ago
I'm confused why you wouldnt just do some random sampling to get some statistical bounds. At least then you'll know if you are close.
biorach•1h ago
> Finally, that's a much smaller number than I expected for a country of 3 million.

172.7k yurts. Assuming that these are family residences for the most part, if we take an average occupancy of 4 (which is probably too low - the fertility rate is still quite high there) gives ~691k people living in yurts - approximately 20% of the population of 3.5 million - sounds reasonable.

MangoToupe•1h ago
Nice! Now how will you validate the result?
proxysna•1h ago
Nice write up, also great to see Docker Swarm being used.
icameron•1h ago
Intrigued by this. What was the rate of false positives? For example are there storage tanks, silos, above ground pools mistaken for yurts?
amelius•15m ago
They use a semi-commercial solution (free for educational use).

I'm curious what the topology/architecture of the DL model is like. And are there better ways to approach this problem?

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