subword-nmt/CHANGELOG.md

CHANGELOG

v0.3.8:

• multiprocessing support (get_vocab and apply_bpe)
• progress bar for learn_bpe
• seed parameter for deterministic BPE dropout
• ignore some unicode line separators which would crash subword-nmt

v0.3.7:

• BPE dropout (Provilkov et al., 2019)
• more efficient glossaries (https://github.com/rsennrich/subword-nmt/pull/69)

v0.3.6:

• fix to subword-bpe command encoding

v0.3.5:

• fix to subword-bpe command under Python 2
• wider support of --total-symbols argument

v0.3.4:

• segment_tokens method to improve library usability (https://github.com/rsennrich/subword-nmt/pull/52)
• support regex glossaries (https://github.com/rsennrich/subword-nmt/pull/56)
• allow unicode separators (https://github.com/rsennrich/subword-nmt/pull/57)
• new option --total-symbols in learn-bpe (commit 61ad8)
• fix documentation (best practices) (https://github.com/rsennrich/subword-nmt/pull/60)

v0.3:

• library is now installable via pip
• fix occasional problems with UTF-8 whitespace and new lines in learn_bpe and apply_bpe.
  • do not silently convert UTF-8 newline characters into "\n"
  • do not silently convert UTF-8 whitespace characters into " "
  • UTF-8 whitespace and newline characters are now considered part of a word, and segmented by BPE

v0.2:

• different, more consistent handling of end-of-word token (commit a749a7) (https://github.com/rsennrich/subword-nmt/issues/19)
• allow passing of vocabulary and frequency threshold to apply_bpe.py, preventing the production of OOV (or rare) subword units (commit a00db)
• made learn_bpe.py deterministic (commit 4c54e)
• various changes to make handling of UTF more consistent between Python versions
• new command line arguments for apply_bpe.py:
  • '--glossaries' to prevent given strings from being affected by BPE
  • '--merges' to apply a subset of learned BPE operations
• new command line arguments for learn_bpe.py:
  • '--dict-input': rather than raw text file, interpret input as a frequency dictionary (as created by get_vocab.py).

v0.1:

• consistent cross-version unicode handling
• all scripts are now deterministic