@InProceedings{niu-carpuat:2017:StyVa,
  author    = {Niu, Xing  and  Carpuat, Marine},
  title     = {Discovering Stylistic Variations in Distributional Vector Space Models via Lexical Paraphrases},
  booktitle = {Proceedings of the Workshop on Stylistic Variation},
  year      = {2017},
  address   = {Copenhagen, Denmark},
  publisher = {Association for Computational Linguistics},
  pages     = {20--27}
}

@InProceedings{niu-martindale-carpuat:2017:EMNLP2017,
  author    = {Niu, Xing  and  Martindale, Marianna  and  Carpuat, Marine},
  title     = {A Study of Style in Machine Translation: Controlling the Formality of Machine Translation Output},
  booktitle = {Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing},
  year      = {2017},
  address   = {Copenhagen, Denmark},
  publisher = {Association for Computational Linguistics},
  pages     = {2804--2809}
}

Usage: calc-formality-score.sh -i INPUT_FILE -o OUTPUT_FILE [-s] [-l] [-p]
Optional arguments:
  -i INPUT_FILE    input file (absolute path)
  -o OUTPUT_FILE   output file (absolute path)
  -s               sort lines by formality score
  -l               only output lexical scores"
  -p               preprocess input file (tokenization and lowercasing)"