2 papers
cs.CL2023
Tokenization and the Noiseless Channel
Vilém Zouhar, Clara Meister, Juan Luis Gastaldi +3
Subword tokenization is a key part of many NLP pipelines. However, little is known about why some tokenizer and hyperparameter combinations lead to better downstream model performa…
cs.CL2023
A Formal Perspective on Byte-Pair Encoding
Vilém Zouhar, Clara Meister, Juan Luis Gastaldi +4
Byte-Pair Encoding (BPE) is a popular algorithm used for tokenizing data in NLP, despite being devised initially as a compression method. BPE appears to be a greedy algorithm at fa…