Great meeting everyone at Kathmandu and share my completness research. Here’s the link to the slide deck from the talk.

Like discussed, we’ve put up a front end called osm-analysis-dashaboard which combines completness research and Jennings’ contributor behaviour metrics in one place.

Would like to gather ideas and collaborate with fellow mappers on,

• how best to build & verify gold standard at feature level and
• build an amazing dashboard that help gain insights on completeness relation with contributor behaviour.

Do drop me a message with your suggestions/questions. Happy to talk through this!

Quite excited to be at the SOTM Asia 2017 Conference in Kathamandu this weekend. This year I’ll be talking about my OpenStreetMap readiness assessment work and walk through on how the approach varies from prior art, opening new avenues for mappers to explore data coverage.

I’m also collaborating with Jennings Anderson on his contributor metrics analysis & trying to understand how does mapping community health reflects on the readiness work.

If you’re at Kathmandu this weekend, do catch me up for more conversation over a Chiya! 👋

Extract all features without a name tag:

name!=*

Extract all features that has a name tag

name=*

Extract all name tags which contains a particular set of words in the name

name:ram

name~ram

Extract all name tags which does not contain a particular set of words in the name

name!~ram

Edits by a user

user:osmusername

Combine two queries

#### Extract all features with name tag but without the word View in the name

name=* && name!~View

All buildings touched by a user in the last one month

user:osmusername && newer:1month && building

user:osmusername && newer:”2016-01-28T19:01:00Z” && building

Continuing from our earlier efforts, our data team at Mapbox and local mappers in Silicon Valley have been diligently tracing missing buildings in San Francisco Bay Area. To date, three Tasking Manager projects are up (#1,#2,#3).

Over 100,000 buildings were traced and validated. Here’s a snapshot of our mapping for Mountain View.

The [most recent task] (http://tasks.openstreetmap.us/project/15) focuses on filling the gaps. Join us in tracing or post feedback on Github.

A quick lookup on the present state of Indic language tags in OSM.

Compared to other language tags, this is a miniscule number.

… See full entry

As part of the Japan road improvement series, OSM Japan community has successfully completed the mega Tokyo task of re-aligning the major roads with the orthorectified GSI imagery.

Data improvement in urban areas like Tokyo presents its unique challenges. Quite notable here is the data density. Since JOSM editor has an upper limit on the number of objects that could be fetched in a single download, every task area had to be split further into smaller ones. There were instances, particularly in inner city areas, where a single task was broken to 16 smaller ones! But this was never a deterrent for the 31 enthusiastic mappers who toiled over two weeks to complete the enormous task 🙌

Next in the pipeline is road improvement in Nagoya city.

… See full entry