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Related papers: Faster Superword Tokenization

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Neural Machine Translation (NMT) is an open vocabulary problem. As a result, dealing with the words not occurring during training (a.k.a. out-of-vocabulary (OOV) words) have long been a fundamental challenge for NMT systems. The predominant…

Computation and Language · Computer Science 2022-08-18 Ali Araabi , Christof Monz , Vlad Niculae

Traditional greedy tokenization methods have been a critical step in Natural Language Processing (NLP), influencing how text is converted into tokens and directly impacting model performance. While subword tokenizers like Byte-Pair Encoding…

Computation and Language · Computer Science 2025-05-05 Bharath Raj , Garvit Suri , Vikrant Dewangan , Raghav Sonavane

For different language pairs, word-level neural machine translation (NMT) models with a fixed-size vocabulary suffer from the same problem of representing out-of-vocabulary (OOV) words. The common practice usually replaces all these rare or…

Computation and Language · Computer Science 2018-07-26 Yingting Wu , Hai Zhao

Discrete audio tokens derived from self-supervised learning models have gained widespread usage in speech generation. However, current practice of directly utilizing audio tokens poses challenges for sequence modeling due to the length of…

Sound · Computer Science 2024-01-17 Feiyu Shen , Yiwei Guo , Chenpeng Du , Xie Chen , Kai Yu

Tokenization is the process of encoding strings into tokens of a fixed vocabulary size, and is widely utilized in Natural Language Processing applications. The leading tokenization algorithm today is Byte-Pair Encoding (BPE), which…

Computation and Language · Computer Science 2025-09-30 Jia Peng Lim , Shawn Tan , Davin Choo , Hady W. Lauw

Multimodal Large Language Models have made significant strides in integrating visual and textual information, yet they often struggle with effectively aligning these modalities. We introduce a novel image tokenizer that bridges this gap by…

Artificial Intelligence · Computer Science 2025-03-11 Wanpeng Zhang , Zilong Xie , Yicheng Feng , Yijiang Li , Xingrun Xing , Sipeng Zheng , Zongqing Lu

The pretraining data of today's strongest language models is opaque; in particular, little is known about the proportions of various domains or languages represented. In this work, we tackle a task which we call data mixture inference,…

Computation and Language · Computer Science 2024-12-03 Jonathan Hayase , Alisa Liu , Yejin Choi , Sewoong Oh , Noah A. Smith

Training data memorization in NLP can both be beneficial (e.g., closed-book QA) and undesirable (personal data extraction). In any case, successful model training requires a non-trivial amount of memorization to store word spellings,…

Computation and Language · Computer Science 2021-12-03 Eugene Kharitonov , Marco Baroni , Dieuwke Hupkes

In this paper, we aim to do code completion based on implementing a Neural Network from Li et. al.. Our contribution is that we use an encoding that is in-between character and word encoding called Byte Pair Encoding (BPE). We use this on…

Computation and Language · Computer Science 2020-04-15 Youri Arkesteijn , Nikhil Saldanha , Bastijn Kostense

Tokenization is a crucial step in NLP, especially with the rise of large language models (LLMs), impacting downstream performance, computational cost, and efficiency. Existing LLMs rely on the classical Byte-pair Encoding (BPE) algorithm…

Computation and Language · Computer Science 2025-11-10 Maharaj Brahma , N J Karthika , Atul Singh , Devaraj Adiga , Smruti Bhate , Ganesh Ramakrishnan , Rohit Saluja , Maunendra Sankar Desarkar

The best performing transformer-based language models use subword tokenization techniques, such as Byte-Pair-Encoding (BPE). However, these approaches often overlook linguistic principles, such as morphological segmentation, which we…

Computation and Language · Computer Science 2025-04-03 Mikkel Wildner Kildeberg , Emil Allerslev Schledermann , Nicolaj Larsen , Rob van der Goot

Typically, tokenization is the very first step in most text processing works. As a token serves as an atomic unit that embeds the contextual information of text, how to define a token plays a decisive role in the performance of a model.Even…

Computation and Language · Computer Science 2020-10-07 Kyubyong Park , Joohong Lee , Seongbo Jang , Dawoon Jung

Past vocabulary learning techniques identify relevant vocabulary before training, relying on statistical and entropy-based assumptions that largely neglect the role of model training. Empirically, we observe that trained translation models…

Computation and Language · Computer Science 2025-04-02 Pin-Jie Lin , Ernie Chang , Yangyang Shi , Vikas Chandra

In this paper, we formalize practical byte pair encoding tokenization as it is used in large language models and other NLP systems, in particular we formally define and investigate the semantics of the SentencePiece and HuggingFace…

Formal Languages and Automata Theory · Computer Science 2023-09-19 Martin Berglund , Brink van der Merwe

Bilingual Word Embeddings (BWEs) are one of the cornerstones of cross-lingual transfer of NLP models. They can be built using only monolingual corpora without supervision leading to numerous works focusing on unsupervised BWEs. However,…

Computation and Language · Computer Science 2022-06-01 Silvia Severini , Viktor Hangya , Masoud Jalili Sabet , Alexander Fraser , Hinrich Schütze

Tokenization is fundamental to how language models represent and process text, yet the behavior of widely used BPE tokenizers has received far less study than model architectures and training. In this paper, we investigate intermediate…

Computation and Language · Computer Science 2026-02-05 Yike Sun , Haotong Yang , Zhouchen Lin , Muhan Zhang

Subword tokenization schemes are the dominant technique used in current NLP models. However, such schemes can be rigid and tokenizers built on one corpus do not adapt well to other parallel corpora. It has also been observed that in…

Computation and Language · Computer Science 2023-06-29 Makesh Narsimhan Sreedhar , Xiangpeng Wan , Yu Cheng , Junjie Hu

Tokenization is the act of breaking down text into smaller parts, or tokens, that are easier for machines to process. This is a key phase in machine translation (MT) models. Subword tokenization enhances this process by breaking down words…

Computation and Language · Computer Science 2025-05-23 Sudhansu Bala Das , Samujjal Choudhury , Tapas Kumar Mishra , Bidyut Kr. Patra

We explore the use of segments learnt using Byte Pair Encoding (referred to as BPE units) as basic units for statistical machine translation between related languages and compare it with orthographic syllables, which are currently the best…

Computation and Language · Computer Science 2017-07-24 Anoop Kunchukuttan , Pushpak Bhattacharyya

Recent dynamic tokenisation methods operate directly on bytes and pool their latent representations into patches. This bears similarities to computational models of word segmentation that determine lexical boundaries using spikes in an…

Computation and Language · Computer Science 2025-06-24 Zébulon Goriely , Suchir Salhan , Pietro Lesci , Julius Cheng , Paula Buttery