added roads using DigitalGlobe Satellite Imagery
This is a *huge* amount of data added. Can you please provide some information about where you got this data? Is it licensed for use with OpenStreetMap? Is this from a company?
Ethan aka FTA
Ethan. A related post is https://www.openstreetmap.org/user/Chetan_Gowda/diary/39149 (same user responsible for the data)
Ethan, Hjart, thank you for flagging out the quality issue. The changeset is based on machine learnt roads using licensed DigitalGlobe high resolution data. http://forum.openstreetmap.org/viewtopic.php?id=55220
We have a manual curation process, but had new challenges recently as we move toward major cities in Egypt. We are fully committed in improving the quality of the submitted roads to OSM standard. But if you think a full revert is the best solution here, we'd be happy to provide all changeset ids as well. Moving forward, we will dial down the algorithm and focus on major roads. We'd love to collaborate, and hope we could work together to improve our approach.
@CrowdAtlas presumably you represent Facebook? As you suggested in http://forum.openstreetmap.org/viewtopic.php?pid=601445#p601445 I'd definitely suggest discussing an import of this sort with the wider OSM community, and the talk mailing list is probably the best way to reach them.
As well as in Egypt there were significant problems in Thailand http://forum.openstreetmap.org/viewtopic.php?id=54648 ; I'd definitely try and get this process right before you try importing 10k ways in each changeset (as has happened here).
Even if a revert isn't immediately needed a list of the relevant changesets would be useful for QA purposes.
Andy, apologies for not introducing myself. I'm Yin from Facebook, who works on the machine learning algorithm for road improvement. Thank you for your advice. All our Thailand edits have been reverted and we will not submit any new road anywhere until we get the process right. By talk mailing list, I assume you meant talk@openstreetmaplorg. I'll start a thread there with our list of changesets. Thanks.
@CrowdAtlas yes, that's the one - thanks.
I think we (the data working group, of which Andy and I are members) have chatted with one of your colleagues before about the prior edits in Thailand. If you don't mind also sending an email to firstname.lastname@example.org we can chat a bit and all get on the same page for moving forward. I saw some of the presentation from OSM-US and this looks like some interesting technology!
Ethan and Andy,
Thank you so much for the help! We are investigating all the issues of our submissions and will send a full report to both work@openstreetmap and data@osmfoundation once we are ready.
@CrowdAtlas before I forget: a lot of hassle and upset could be avoided if such changesets would have a proper source tag indicating both the tool and the imagery used.
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