Sam Pablo Kuper, 17/02/2016 04:19:

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For example, suppose I want to find images of cats, that are licensed under CC-BY (but not CC-BY-SA or CC-0, etc). How should I go about this?

Thanks for the various replies.

I had hoped that there might be a "license:" filter in MediaWiki (or CirrusSearch, etc) that worked semantically rather than just using string matching (i.e. syntactically).

If anyone does know of such a thing - perhaps via Wikidata? - please let me know. Thanks again!

Now, some comments on the suggestions :)

On 17/02/16 14:06, Federico Leva (Nemo) wrote:

Usually I use categories. When I search a specific copyright status it's usually PD (when I don't have space for attribution):

https://commons.wikimedia.org/wiki/Special:Search/cat_incategory:%22CC-PD-Ma...

Thanks for this. It's a good reminder to me to learn the CirrusSearch filters.

https://www.mediawiki.org/wiki/Help:CirrusSearch#Filters_.28intitle:.2C_inca...

On 17/02/16 12:41, Fæ wrote:

There are a lot of different license templates that can mark a file as CC-BY, refer to https://commons.wikimedia.org/wiki/Category:Free_Creative_Commons_licenses

If you were looking for the generic {{CC-BY-4.0}} you can use the category < https://commons.wikimedia.org/wiki/Category:CC-BY-4.0%3E

So using the category that 'cats' redirects to, and putting this into catscan gives: http://tools.wmflabs.org/catscan3/quick_intersection.php?lang=commons&pr...

To get more, you can swap in CC-BY-3.0 etc.

Nice. I wasn't aware of the "Quick Intersection" tool :)

On 17/02/16 13:54, Jane Darnell wrote:

https://www.google.com/search?q=site:commons.wikimedia.org+cats+cc-0

Google works irritatingly well for this, I must admit, and allows searches like:

https://www.google.co.uk/search?safe=off&tbm=isch&sa=1&q=site%3A...

Thanks, all!