That would work for sure if they wanted to add a "more images like this" feature. Here's an example using the SqueezeNet model and Pinecone (where scale isn't an issue): https://www.pinecone.io/docs/examples/image-similarity-searc...

Encoding both word and image embeddings into the same index then doing ANN on that index might also work. See this example of text-to-image retrieval: https://paperswithcode.com/task/texture-image-retrieval

Maybe someone from Dropbox can add more color to this and explain what other options they considered.

As it stands, I still can't find what I need in Dropbox. And never could. From reading this article I'd think searching for a basic keyword like "dog" or "ship" or "runner" would yield some results from my tens of thousands of photos, yet I get nothing (nothing relevant, at least).

Edit: On second reading, this is only available to Dropbox Pro and Business users. I hope they roll this out to other paying users soon.