The Facebook team did employ some sort of AI to assist in the identification of highways but it wasn't always right. And the mappers they employed didn't know OSM very well. We met with them several times to offer advice and hints but some of the more active mappers in Thailand are still railing about the failure of the team to come up to speed. They joined OSM, they mapped, they departed. Next up, Grab. Another huge imbroglio resulted. Same issues. Inaccurate mapping, broken routes, especially in Bangkok.
The horse has definitely left the barn. We're left with what remains a very large task of cleaning up and verifying. On a positive note, they added thousands of highways for us and made their high-quality DigitalGlobe imagery available to ordinary OSMers. That, to me anyway, was well worth the trade-off. On Sat, Aug 10, 2019 at 9:43 AM Paul Allen <pla16...@gmail.com> wrote: > On Sat, 10 Aug 2019 at 17:27, Dave Swarthout <daveswarth...@gmail.com> > wrote: > >> The decision to use the import=yes tag wasn't mine nor that of other >> experienced Thailand mappers. The Facebook crew "invented" this use, for >> whatever internal reason(s)of their own and we local mappers simply went >> along with it because we were desperate for a method with which to check >> their work. >> > > If Joseph was right that Facebook used AI on the aerial imagery then I'd > say it does meet some > of the criteria for an import unless the results were first verified by > humans. And since it > sounds like Facebook dumped the unverified AI output into OSM for humans > to check, then > import=yes doesn't sound unreasonable (although it might have been better > as a changeset > tag rather than an object tag). Would something like AI_assisted have > been better? Maybe. > Would a changeset tag have been better? Maybe. Is there any point > locking the stable door > now the horse has bolted? No. Can we persuade Facebook to do it any > differently in the > future? I have my doubts, and I expect Facebook horses will keep bolting > because they > never lock the stable doors. > > -- > Paul > > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
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