How to "teach" Google Photos?

Google photos is great, I can type in “cats” or “dogs” or any number of other things and it will show me all of the photos in my collection that it thinks match the criteria (sometimes producing hilarious mismatches). What I’d like to be able to do though is tell it, “this photo is of a [insert object here]”, and have it show me all similar photos. I am in the habit of photographing a certain completed form at the end of each work day and would like for Google to be able to bring up all of these photos for me. Can this be done?

You might be able to do something with the prediction API ( Google APIs Explorer  |  Google Developers ). But keep in mind that the models that identify “dog” and “cat” are trained on an entire internet full of dog and cat photos and still sometimes mistakes a sheep for a dog. Your work, no matter how expansive, is probably too small a sample size to identify anything meaningful unless it is a really unique object.

Probably an easier query is “show me the last photo on each work day”.

Does Google Photos not have tagging? I assume it would learn from tags.

You can sort them into a collection, that’s probably the easiest way. You can also edit the “description” tag under Info, but that field doesn’t seem to be searchable by keyword anyway.

You can also try posting your question on the Help forum here: Google Product Forums

I guess I don’t want to do the sorting myself, I want Google to do the sorting. If I could tag a few and Google would get the hint and recognise others were the same that would help. I don’t think the API thing is the right solution as that seems to be more aimed at text based files rather than pictures.