I guess the performance impact could be controlled by applying some cheap heuris...

summerlight on Oct 25, 2019 | parent | context | favorite | on: Applying BERT models to Search

I guess the performance impact could be controlled by applying some cheap heuristics, something like having more than 3~4 words with a preposition. They're giving a pretty specific number (one in 10 searches), so this might be the case.