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

[Wayne Emerson, Jr.]

There seems to be a misunderstanding of the definition of "Derived". In 
order for something to be considered derived it needs to contain some 
elements from which it was derived. The end product described by 
facebook contains no OSM data, therefore it is literally the opposite of 
a derived product.

As far as licensing I can't comment on that.

On 11/14/2019 4:50 PM, Mateusz Konieczny wrote:
>
>
>
> 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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