<html dir="ltr"><head></head><body style="text-align:left; direction:ltr;"><div>I have just come across an armchair edit using Facebook AI data. </div><div><br></div><div>They do seem to have failed to check that detections are accurate, or lack experience to identify common Midlands farmland features. They have mapped several hedges as tracks.</div><div><br></div><div>Something I think we need to watch out for, this tech is not ready for real use.</div><div><br></div><div>Phil (trigpoint)</div><div><br></div><div><br></div><div>On Sun, 2020-01-05 at 15:25 +0000, SK53 wrote:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div dir="ltr"><div>I was wondering if it was worth creating a wiki page to provide more of these examples. Clearly the value of the data and types of false positives vary across the country.</div><div><br></div><div>Jerry</div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Sun, 5 Jan 2020 at 15:12, Russ Garrett <<a href="mailto:russ@garrett.co.uk">russ@garrett.co.uk</a>> wrote:<br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">Given the obvious flaws in the data, I'm actually quite surprised how<br>
good it is at spotting unmapped service roads in London - including<br>
those which pass beneath buildings. Most of them probably deserve a<br>
survey though.<br>
<br>
Russ<br>
<br>
On Sun, 5 Jan 2020 at 15:04, Rob Nickerson <<a href="mailto:rob.j.nickerson@gmail.com" target="_blank">rob.j.nickerson@gmail.com</a>> wrote:<br>
><br>
> Thanks Jerry.<br>
><br>
> I'd also subsequently discovered the data dump but had not yet got around to looking at it. What are you using here to view and work with the data? Is QGIS and 6GB RAM sufficient?<br>
><br>
> I would be interested in Warwickshire if you can extract that.<br>
><br>
> And yes, we probably are not expecting much for the UK given how well we already have most roads mapped. It's a shame it only shows missing roads as I suspect it has better geometry of some rural roads in poorly mapped areas than us - I still find jagged roads with source=npe.<br>
><br>
> Nevertheless, the AI stuff is an interesting one to keep an eye on. If improvements can be made and additional datasets incorporated, it could become a significant aid in the future. For example I wonder if it could be good at building detections when combined with other data such as LiDAR height data. There is also the prospect of using AI to help find solar panels.<br>
><br>
> Best regards,<br>
> Rob<br>
><br>
><br>
> On Sun, 5 Jan 2020 at 14:07, SK53 <<a href="mailto:sk53.osm@gmail.com" target="_blank">sk53.osm@gmail.com</a>> wrote:<br>
>><br>
>> Perhaps more useful is that one can download the UK data as a geopackage from <a href="https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/wiki/Available-Countries" target="_blank" rel="noreferrer">https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/wiki/Available-Countries</a>. It's 147Mb zipped in a tar which unpacked is around 400Mb.<br>
>><br>
>> I've had a very quick look and notice quite a few concentrations of features which are obviously tractor lines in farmland. See this area around Colston Bassett <a href="https://wiki.openstreetmap.org/wiki/File:Colston_basset_fb_rapid.png" target="_blank" rel="noreferrer">https://wiki.openstreetmap.org/wiki/File:Colston_basset_fb_rapid.png</a>. Apparently such false positives can be marked as such in the editor which ought to improve detections next time round. My suspicion is that things which are actually roads are mainly driveways to outlying houses & farms or farm tracks. Using OS OpenRoads is more likely to help find significant missing adopted roads.<br>
>><br>
>> Jerry<br>
>><br>
>> I can potentially provide extracts for individual LAs if people want them, send me an email. I personally found it easier to look at the data as a whole rather than scanning around in the editor.<br>
>><br>
>><br>
>> On Thu, 2 Jan 2020 at 22:09, Rob Nickerson <<a href="mailto:rob.j.nickerson@gmail.com" target="_blank">rob.j.nickerson@gmail.com</a>> wrote:<br>
>>><br>
>>> Hi all,<br>
>>><br>
>>> I just spotted that Facebook have pushed an update to their map with AI project:<br>
>>><br>
>>> "For our final release of 2019, we have released 84 new countries for our AI road data with new coverage in the remainder of Europe, Asia, and Oceania! AI roads are now available nearly globally."<br>
>>> Source: <a href="https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/blob/master/WHATSNEW.md" target="_blank" rel="noreferrer">https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/blob/master/WHATSNEW.md</a><br>
>>><br>
>>> For those who don't know what MapWithAI is check out <a href="https://mapwith.ai" target="_blank" rel="noreferrer">https://mapwith.ai</a><br>
>>><br>
>>> And to try it out in their RapID version of the iD editor: <a href="https://mapwith.ai/rapid#background=Bing&disable_features=boundaries&map=18.60/53.40625/-2.13801" target="_blank" rel="noreferrer">https://mapwith.ai/rapid#background=Bing&disable_features=boundaries&map=18.60/53.40625/-2.13801</a><br>
>>><br>
>>> Just roads at the moment and not that easy to find a suggestion that is worth adding (at least near me where roads are well mapped) but this does demonstrate what is possible. Let us know if you have a good or bad experience with this.<br>
>>><br>
>>> Would be great to see this extended to buildings but we may have to wait for Microsoft for that.<br>
>>><br>
>>> P.S. A happy new year to all!<br>
>>><br>
>>> Thank you,<br>
>>> Rob<br>
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