Aid new mappers in inactive mapper areas

[bkowshik]

With osm-compare, we have traditionally tagged changesets that are suspescious and/or potentially harmful. But, the osm-compare and osmcha 🤝 has a whole world of possibilities to explore. This I think is one such interesting idea.

With our recent context based validation work, we have touched areas where we use the existing features on the map to validate a new incoming feature. We could potentially use a similar context about the number of active mappers in the region to aid new mappers editing in non-active mapper zones.

Workflow

• For features from new mappers on OpenStreetMap
• Check, if edits are in an inactive mapper area. An inactive mapper area could potentially be derieved from:
  • Number of days any feature in the area has been touched in the last X days.
  • Number of unique mappers who have touched features in the area in the last X days.
• For all new mapper edits in inactive mapper areas, label those changesets in osmcha as New mapper in inactive mapper area
• The osmcha community then can filter out these changesets, 👀 them and aid new mappers when necessary with tips, etc.
• With this, the hope is to aid new mappers on OpenStreetMap (yes, in a small way) to become long-term contributors to this amazing project. 🤗

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cc: @planemad @batpad

[willemarcel]

@bkowshik It's a very good idea. One question: how would you determine the mapper area? Would it be the area of the changeset?

[bkowshik]

Thank you @willemarcel

Area of the changeset

The area of the changeset could be really covering a large area in some cases even though the features themselves are just a few. For the changeset below, there is one feature in Thailand and another in Italy. So, area of the changeset would not be very useful.

• http://www.openstreetmap.org/changeset/46704877

Area around the feature

How I am thinking about this is as follows:

• Given that a new user creates edits a feature on an island in Thailand.
• Get the appropriate pre-calculated tiles over the region that contain active mapper counts.
• If number of active mappers in the region, based on the number of mappers and number of mapping days is less
• Label the changeset on osmcha as New mapper in inactive mapper area

[willemarcel]

@bkowshik for very small changesets it wouldn't work to use its area as well, for example a changeset that just edited a couple of closer POIs or buildings.