[1.18.1]

Added

• Added Tensorboard logging for all parameter values and gradients as histograms/distributions. The logged values
  correspond to the current batch at checkpoint time.

Changed

• Tensorboard logging now is done with the MXNet compatible 'mxboard' that supports logging of all kinds of events
  (scalars, histograms, embeddings, etc.). If installed, training events are written out to Tensorboard compatible
  even files automatically.

Removed

• Removed the --use-tensorboard argument from sockeye.train. Tensorboard logging is now enabled by default if
  mxboard is installed.

[1.18.0]

Changed

• Change default target vocab name in model folder to vocab.trg.0.json
• Changed serialization format of top-k lexica to pickle/Numpy instead of JSON.
• sockeye-lexicon now supports two subcommands: create & inspect.
  The former provides the same functionality as the previous CLI.
  The latter allows users to pass source words to the top-k lexicon to inspect the set of allowed target words.

Added

• Added ability to choose a smaller k at decoding runtime for lexicon restriction.

[1.17.5]

Added

• Added a flag --strip-unknown-words to sockeye.translate to remove any <unk> symbols from the output strings.