Neural Machine Translation of Rare Words with Subword Units, Rico Sennrich, Barry Haddow, and Alexandra Birch, 2016Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) (Association for Computational Linguistics)DOI: 10.18653/v1/P16-1162 - Introduces Byte Pair Encoding (BPE) for handling rare words in neural machine translation, a seminal work for subword tokenization.
BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding, Jacob Devlin, Ming-Wei Chang, Kenton Lee, and Kristina Toutanova, 2019Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers), Vol. 1 (Association for Computational Linguistics)DOI: 10.18653/v1/N19-1423 - Describes the WordPiece tokenization strategy used in the BERT model, illustrating a practical application of subword tokenization in modern NLP.