[OSM-talk] Licence of Facebook's derived road datasets? ODbL?

[Mateusz Konieczny]

14 Nov 2019, 22:12 by yuriastrakhan at gmail.com:

> Let me get this straight:
>
> * I create a dataset from public data sources, e.g. a list of roads, and publish it under the Public Domain dedication (i.e. CC0).  (I agree that MIT is weird here).
> * Afterwards, I make a subset of my original data by removing any roads I found elsewhere, e.g. in a proprietary source.
> * And now you are saying that the new _subset_ of my original public domain data is no longer public domain because I removed values that exist in a proprietary source?
>
Yes, it is a derivative work. (AFAIK)
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