minor bug fixes

[ad6398]

1. Fair sequence bug
   torch.div(self.indices_buf, vocab_size, out=self.beams_buf) gives error, it should be replaced by torch.floor_divide(self.indices_buf, vocab_size, out=self.beams_buf)

2. File naming error:
   in data/stage_segmentation notebook file names generated is _sent_trans_cons_label_2.pkl but it is expected as _sent_trans_cons_label.pkl by other part of codes.

3. Synatx error
   in data/read_labels notebook line 33 has missing : in if condition.

[jiaaoc]

Thanks for the note, we will push the updated version.

[Ricardokevins]

it's obvious that anthor didn`t fix the bug lol

[manish142000]

Does this model perform well on Longer Dialogues ? like 8000 - 10000 tokens ?