Support n_best option for CTranslate

Like translate.lua, CTranslate should support the n_best option.

Which version the n_best option will be supported for CTranslate ?

You could give some tips for us to finish it if you are busy for something else.

Be wish to take n_best as soon as possible.

No definite plans for it. Are you building an application around CTranslate? In the meantime, is using translate.lua an option in your use case?

Yes, I’m planning to build an application around CTranslate.

And could you give some advice for supporting n_best output ?

If you want to take a look:

These data structures hold the beam search result. In particular, you want to extract N hypotheses from next_ys (with their corresponding next_features, scores and all_attention) following beam paths described in prev_ks.

Here is the piece of code that extracts the best hypotheses for a batch: