Contrastive search

[jafri]

Thought you would find interesting: https://twitter.com/martin_gorner/status/1590339322992959488

Wonder if applicable to whisper, since currently use Greedy

[ggerganov]

Yes - very interesting.

I'll definitely take a more detailed look at the paper and see if we can add this to the project.
I am very hesitant about adding beam search, as I intuitively feel it is wasting too much computation for not-that-great improvement. So any alternative approach is of interest.