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Modern neural machine translation (NMT) models have achieved competitive performance in standard benchmarks. However, they have recently been shown to suffer limitation in compositional generalization, failing to effectively learn the…

Computation and Language · Computer Science 2022-10-14 Yongjing Yin , Yafu Li , Fandong Meng , Jie Zhou , Yue Zhang

The purpose of speech tokenization is to transform a speech signal into a sequence of discrete representations, serving as the foundation for speech language models (SLMs). While speech tokenization has many options, their effect on the…

Computation and Language · Computer Science 2025-06-03 Shunsuke Kando , Yusuke Miyao , Shinnosuke Takamichi

Neural networks have become the state-of-the-art approach for machine translation (MT) in many languages. While linguistically-motivated tokenization techniques were shown to have significant effects on the performance of statistical MT, it…

Computation and Language · Computer Science 2019-06-28 Mai Oudah , Amjad Almahairi , Nizar Habash

A multilingual tokenizer is a fundamental component of multilingual neural machine translation. It is trained from a multilingual corpus. Since a skewed data distribution is considered to be harmful, a sampling strategy is usually used to…

Computation and Language · Computer Science 2022-09-13 Shiyue Zhang , Vishrav Chaudhary , Naman Goyal , James Cross , Guillaume Wenzek , Mohit Bansal , Francisco Guzman

One of the challenges with finetuning pretrained language models (PLMs) is that their tokenizer is optimized for the language(s) it was pretrained on, but brittle when it comes to previously unseen variations in the data. This can for…

Computation and Language · Computer Science 2023-04-21 Verena Blaschke , Hinrich Schütze , Barbara Plank

The effectiveness of Neural Machine Translation (NMT) models largely depends on the vocabulary used at training; small vocabularies can lead to out-of-vocabulary problems -- large ones, to memory issues. Subword (SW) tokenization has been…

Computation and Language · Computer Science 2023-03-02 J. Pourmostafa Roshan Sharami , D. Shterionov , P. Spronck

The authors of (Cho et al., 2014a) have shown that the recently introduced neural network translation systems suffer from a significant drop in translation quality when translating long sentences, unlike existing phrase-based translation…

Computation and Language · Computer Science 2014-10-08 Jean Pouget-Abadie , Dzmitry Bahdanau , Bart van Merrienboer , Kyunghyun Cho , Yoshua Bengio

Neural machine translation (NMT) takes deterministic sequences for source representations. However, either word-level or subword-level segmentations have multiple choices to split a source sequence with different word segmentors or…

Computation and Language · Computer Science 2019-06-05 Fengshun Xiao , Jiangtong Li , Hai Zhao , Rui Wang , Kehai Chen

Neural Machine Translation (NMT) models generally perform translation using a fixed-size lexical vocabulary, which is an important bottleneck on their generalization capability and overall translation quality. The standard approach to…

Computation and Language · Computer Science 2019-10-22 Duygu Ataman , Orhan Firat , Mattia A. Di Gangi , Marcello Federico , Alexandra Birch

Neural Machine Translation (NMT) models have demonstrated strong state of the art performance on translation tasks where well-formed training and evaluation data are provided, but they remain sensitive to inputs that include errors of…

Computation and Language · Computer Science 2020-10-22 Daniel Li , Te I , Naveen Arivazhagan , Colin Cherry , Dirk Padfield

Neural machine translation (NMT) systems aim to map text from one language into another. While there are a wide variety of applications of NMT, one of the most important is translation of natural language. A distinguishing factor of natural…

Computation and Language · Computer Science 2022-01-04 Vivek Subramanian , Dhanasekar Sundararaman

While neural machine translation (NMT) models provide improved translation quality in an elegant, end-to-end framework, it is less clear what they learn about language. Recent work has started evaluating the quality of vector…

Computation and Language · Computer Science 2018-01-25 Yonatan Belinkov , Lluís Màrquez , Hassan Sajjad , Nadir Durrani , Fahim Dalvi , James Glass

Tokenizing raw texts into word units is an essential pre-processing step for critical tasks in the NLP pipeline such as tagging, parsing, named entity recognition, and more. For most languages, this tokenization step straightforward.…

Computation and Language · Computer Science 2022-03-22 Idan Brusilovsky , Reut Tsarfaty

Neural Machine Translation (NMT) is a new approach to machine translation that has made great progress in recent years. However, recent studies show that NMT generally produces fluent but inadequate translations (Tu et al. 2016b; Tu et al.…

Computation and Language · Computer Science 2017-01-02 Xing Wang , Zhengdong Lu , Zhaopeng Tu , Hang Li , Deyi Xiong , Min Zhang

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

Variation in language is ubiquitous and often systematically linked to regional, social, and contextual factors. Tokenizers split texts into smaller units and might behave differently for less common linguistic forms. This might affect…

Computation and Language · Computer Science 2025-07-08 Anna Wegmann , Dong Nguyen , David Jurgens

Word segmentation plays a pivotal role in improving any Arabic NLP application. Therefore, a lot of research has been spent in improving its accuracy. Off-the-shelf tools, however, are: i) complicated to use and ii) domain/dialect…

Computation and Language · Computer Science 2017-09-05 Hassan Sajjad , Fahim Dalvi , Nadir Durrani , Ahmed Abdelali , Yonatan Belinkov , Stephan Vogel

Neural Machine Translation (NMT) models achieve state-of-the-art performance on many translation benchmarks. As an active research field in NMT, knowledge distillation is widely applied to enhance the model's performance by transferring…

Computation and Language · Computer Science 2021-05-28 Fusheng Wang , Jianhao Yan , Fandong Meng , Jie Zhou

Neural machine translation (NMT) has achieved impressive performance on machine translation task in recent years. However, in consideration of efficiency, a limited-size vocabulary that only contains the top-N highest frequency words are…

Computation and Language · Computer Science 2020-01-07 Yirong Pan , Xiao Li , Yating Yang , Rui Dong

While it has been shown that Neural Machine Translation (NMT) is highly sensitive to noisy parallel training samples, prior work treats all types of mismatches between source and target as noise. As a result, it remains unclear how samples…

Computation and Language · Computer Science 2021-06-01 Eleftheria Briakou , Marine Carpuat
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