here's a interested case https://www.gislounge.com/gis-data-high-resolution-global-hydrography-dataset/amp/ are they allowed to share this on CC4? Shouldn't it only be ODbL? are they allowed to share only after a registration? anyone wanna try getting a copy of the derivated work as they need to without registration?
On Fri, Nov 15, 2019 at 4:20 PM Christoph Hormann <o...@imagico.de> wrote: > On Friday 15 November 2019, Martin Koppenhoefer wrote: > > > > there isn't OSM data in their dataset. > > > > > > And neither is there is my ocean data set - the OSM data set used > > > only contains land masses, my resulting data set (D2 in Rory's > > > terms) only contains oceans. So no OSM data in it. > > > > I doubt this cheap trick would pass when contested in a trial. > > Well - it is not my cheap trick, it is facebook's cheap trick. I am > just following the lead here. There is no principal difference between > what facebook does and what my scenario describes. > > > > If the question is not "addition or subtraction" consider the > > > following scenario. You create a data set using some AI and big > > > data process of 'potential restaurants' world wide and create a set > > > intersection between those and the restuarants in OSM would the > > > results be a derivative of OSM data? > > > > yes, if you look at the intersection (data in both sets), it would > > be. If you took only what is not in OSM, I guess it wouldn't (no data > > from OSM contained). > > So the set operation chosen (difference or intersection or any other) > decides on the legal status of the resulting data set? > > You are aware that a difference is the same as an intersection with the > complement, i.e. A \setminus B = A \cap B^c - see: > > https://en.wikipedia.org/wiki/Complement_(set_theory) > > -- > Christoph Hormann > http://www.imagico.de/ > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk >
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