OpenStreetMap

POI Edits by Editor

Posted by Zverik on 29 December 2016 in English (English)

The editor usage stats wiki page has two useful tables for comparing editors: by number of users and by number of edits. And while MAPS.ME reach is clearly visible in the first one (alas, it hasn't still surpassed iD in users), the second table has much lower numbers for the mobile editor. Which is reasonable: MAPS.ME does not allow editing geometry, thus a single user can make more edits in a day, than all MAPS.ME users in a month.

I was wondering if we could compare only the type of edits our mobile editor allows, that is, POI edits. And with daily replication diffs, I did:

Created and Modified POIs by Editor, total

This chart shows that while users of iD and JOSM editor create more points of interest than MAPS.ME users, it's not by a large margin.

I noticed days when 10k or 20k new POIs were uploaded with JOSM, and wondered if the picture would change if we took median values for days of each month. That is, from a sorted array of numbers we would take the middle number. Turns out, not much.

Created and Modified POIs by Editor, median day

Most of us know how hard it is to update POI data, besides fixing geometry or fixing tags. Not only you have to go out and collect new opening hours or names, but also you must know that something has changed. Mobile editors usually excel at that, so why editing numbers are higher for desktop editors? That's because I could not separate meaningful tag edits from automated, or geometry changes from tag edits. Maybe if I could, MAPS.ME's share of POI edits would be much higher.

Comment from BushmanK on 29 December 2016 at 18:08

Without a method description, any analysis is usually considered incomplete.

Like, what exactly is POI here: node, any object with a certain tag(s) or something else? Does it include objects deleted afterwards (like infamous "my house", "mom's house" stuff)?

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Comment from Zverik on 29 December 2016 at 18:11

The method is simply counting objects with one of (amenity tourism historic shop craft emergency office) keys in replication diffs. No names analysis or existence tests were performed.

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Comment from seav on 6 January 2017 at 01:41

This is just my personal practice but I use MAPS.ME to add bookmarks about new/updated/closed POIs when I am outside. Then when I get back home, I edit them using JOSM. I don't use MAPS.ME's editor because I tend to also fix the surrounding geometry and add other tags that MAPS.ME does not support.

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Comment from ViriatoLusitano on 8 January 2017 at 20:52

Do this in Poland and your tool will freak out!

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