AI has become an abbreviation for “bad” and I wouldn’t want that, but yes, I’ve been interested for a while in building language models into search engines, to give the queries more reach into the document semantics. Unfortunately, naive approaches like looking for matching vector embeddings instead of (or alongside) search terms seems near useless, and just clutters up the results.

I’d be interested in knowing what approaches you’re using. FOSS, I hope.