Hi. As mentioned last week both OpenCellID and MLS have gone forward and created a new data format to publish cell network data.
This format is based on the prior OpenCellID format and only diverges slightly from it to accommodate a new cell range estimate and more succinctly express the unique cell identifier for each network. Our documentation for the format can be found at http://mozilla-ichnaea.readthedocs.org/en/latest/import_export.html. You can find our full list of cell networks and hourly differential updates at https://location.services.mozilla.com/downloads. You can find the OpenCellID data in the same format under http://opencellid.org/downloads/. These changes went live yesterday / today for the two projects. The MLS data set is published under a CC-0 license, while OpenCellID uses a CC-BY-SA / Odbl license. Both of our projects will work on including the others data set in the next weeks. OpenCellID is also planning to do a major data cleanup in the remainder of the year to much more strictly validate their community contributed data. On the MLS side we also have some work to do to better distinguish GSM and UMTS networks. A quick comparison of the two data sets has shown a fairly low overlap. OpenCellID has collected 6.2 million networks to date and MLS has collected about 1.8 million. Only 0.6 million of those networks are shared, so we end up with a combined data set of 7.4 million cells. Various commercial vendors claim to have a data set of about 46 million networks, so we still have a ways to go, but we are stronger together. >From my perspective this is great step forwards and working with the >OpenCellID project has been a joy. A special thanks to Markus and Chris. I’m >looking forward to continuing the collaboration. We already got some initial feedback for the MLS data and we’ll follow up on that. I’m also hoping community members might take the available data and play around with it. Especially prototypes of better map visualizations would be much appreciated. Best, Hanno _______________________________________________ dev-geolocation mailing list [email protected] https://lists.mozilla.org/listinfo/dev-geolocation
