On Mon, 2016-06-20 at 11:26 +0200, Martin Koppenhoefer wrote: > > 2016-06-19 22:35 GMT+02:00 Ilya Zverev <i...@zverev.info>: > > As for the maps.me, I am glad that foreign names issue is basically > > the only one that most people agree on. > > > > there are lots of different issues, and even if many of them have not > yet commented on them, I still believe they do have the potential to > harm overall data quality. From the manual reviews I have performed > so far, the amount of new issues introduced was far bigger than the > useful information that has been added, but I didn't look at enough > data to make this representative in any way (of course). > > Some of the issues that come to mind: > 1. stuff put projected to the middle of the road rather than the > actual position (common newbie error, possibly because that's how > google and others present search results) > 2. stuff put without a tag what it is (just a name and a property > like tourism=attraction) > 3. duplicates added (things that are already there) > 4. poor semantic level (very low detail in tagging, in some > occassions to a point where it becomes not understandable any more, > sometimes mistagged as something vaguely similar) > 5. sometimes missplaced objects far off (likely due to bad location > data in the device and users not familiar with the area, and not > willing to properly orient themselves) > Many of these are newbie errors, the same as we see with any other editor however the big difference I see with maps.me is the apparent lack of reaction to changeset comments that allow the community to help newbies through their initial edits. When adding comments to maps.me changesets I do get the feeling I am wasting my time. Another observation I see is the geographical spread of edits, a bar in Portugal followed by a guest house in the UK about the local knowledge of what they are adding. Phil (trigpoint)
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