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Related papers: Quality-Aware Decoding: Unifying Quality Estimatio…

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Large language models (LLMs) have emerged as strong contenders in machine translation.Yet, they still struggle to adequately handle discourse phenomena, such as pronoun resolution and lexical cohesion at the document level. In this study,…

Computation and Language · Computer Science 2025-10-09 Wafaa Mohammed , Vlad Niculae , Chrysoula Zerva

Sentence-level Quality estimation (QE) of machine translation is traditionally formulated as a regression task, and the performance of QE models is typically measured by Pearson correlation with human labels. Recent QE models have achieved…

Computation and Language · Computer Science 2021-09-20 Shuo Sun , Ahmed El-Kishky , Vishrav Chaudhary , James Cross , Francisco Guzmán , Lucia Specia

Neural machine translation (NMT) systems operate primarily on words (or sub-words), ignoring lower-level patterns of morphology. We present a character-aware decoder designed to capture such patterns when translating into morphologically…

Computation and Language · Computer Science 2019-06-20 Adithya Renduchintala , Pamela Shapiro , Kevin Duh , Philipp Koehn

We propose a novel decoding approach for neural machine translation (NMT) based on continuous optimisation. We convert decoding - basically a discrete optimization problem - into a continuous optimization problem. The resulting constrained…

Computation and Language · Computer Science 2017-07-25 Cong Duy Vu Hoang , Gholamreza Haffari , Trevor Cohn

Current state-of-the-art Quality Estimation (QE) in machine translation relies on massive, proprietary LLMs, raising data privacy concerns. We demonstrate that smaller, open-source LLMs (<30B parameters) are a viable, cost-effective and…

Computation and Language · Computer Science 2026-05-18 Kamil Guttmann , Zofia Fraś , Artur Nowakowski , Krzysztof Jassem

Translation quality evaluation plays a crucial role in machine translation. According to the input format, it is mainly separated into three tasks, i.e., reference-only, source-only and source-reference-combined. Recent methods, despite…

Computation and Language · Computer Science 2022-10-20 Yu Wan , Dayiheng Liu , Baosong Yang , Haibo Zhang , Boxing Chen , Derek F. Wong , Lidia S. Chao

This paper describes our submission of the WMT 2020 Shared Task on Sentence Level Direct Assessment, Quality Estimation (QE). In this study, we empirically reveal the \textit{mismatching issue} when directly adopting BERTScore to QE.…

Computation and Language · Computer Science 2020-10-13 Lei Zhou , Liang Ding , Koichi Takeda

Quality estimation (QE) for tasks involving language data is hard owing to numerous aspects of natural language like variations in paraphrasing, style, grammar, etc. There can be multiple answers with varying levels of acceptability…

Computation and Language · Computer Science 2020-04-30 Prabhakar Gupta , Anil Nelakanti

Attention-based Encoder-Decoder has the effective architecture for neural machine translation (NMT), which typically relies on recurrent neural networks (RNN) to build the blocks that will be lately called by attentive reader during the…

Computation and Language · Computer Science 2017-12-07 Hao Xiong , Zhongjun He , Xiaoguang Hu , Hua Wu

This preliminary study investigates the usefulness of sentence-level Quality Estimation (QE) in English-Chinese Machine Translation Post-Editing (MTPE), focusing on its impact on post-editing speed and student translators' perceptions. It…

Computation and Language · Computer Science 2025-07-23 Siqi Liu , Guangrong Dai , Dechao Li

We present the task of PreQuEL, Pre-(Quality-Estimation) Learning. A PreQuEL system predicts how well a given sentence will be translated, without recourse to the actual translation, thus eschewing unnecessary resource allocation when…

Computation and Language · Computer Science 2022-12-06 Shachar Don-Yehiya , Leshem Choshen , Omri Abend

Most existing machine translation systems operate at the level of words, relying on explicit segmentation to extract tokens. We introduce a neural machine translation (NMT) model that maps a source character sequence to a target character…

Computation and Language · Computer Science 2017-06-14 Jason Lee , Kyunghyun Cho , Thomas Hofmann

This paper investigates two complementary paradigms for predicting machine translation (MT) quality: source-side difficulty prediction and candidate-side quality estimation (QE). The rapid adoption of Large Language Models (LLMs) into MT…

Computation and Language · Computer Science 2026-03-05 Malik Marmonier , Benoît Sagot , Rachel Bawden

In this paper, we propose an effective way for biasing the attention mechanism of a sequence-to-sequence neural machine translation (NMT) model towards the well-studied statistical word alignment models. We show that our novel guided…

Computation and Language · Computer Science 2016-07-07 Wenhu Chen , Evgeny Matusov , Shahram Khadivi , Jan-Thorsten Peter

Word-level quality estimation (WQE) aims to automatically identify fine-grained error spans in machine-translated outputs and has found many uses, including assisting translators during post-editing. Modern WQE techniques are often…

Computation and Language · Computer Science 2025-11-18 Gabriele Sarti , Vilém Zouhar , Malvina Nissim , Arianna Bisazza

The basic concept in Neural Machine Translation (NMT) is to train a large Neural Network that maximizes the translation performance on a given parallel corpus. NMT is then using a simple left-to-right beam-search decoder to generate new…

Computation and Language · Computer Science 2018-12-19 Markus Freitag , Yaser Al-Onaizan

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

A great proportion of sequence-to-sequence (Seq2Seq) models for Neural Machine Translation (NMT) adopt Recurrent Neural Network (RNN) to generate translation word by word following a sequential order. As the studies of linguistics have…

Computation and Language · Computer Science 2018-06-14 Junyang Lin , Xu Sun , Xuancheng Ren , Shuming Ma , Jinsong Su , Qi Su

Quality Estimation (QE) is essential for assessing machine translation quality in reference-less settings, particularly for domain-specific and low-resource language scenarios. In this paper, we investigate sentence-level QE for English to…

Computation and Language · Computer Science 2026-03-10 Namrata Patil Gurav , Akashdeep Ranu , Archchana Sindhujan , Diptesh Kanojia

Attentional sequence-to-sequence models have become the new standard for machine translation, but one challenge of such models is a significant increase in training and decoding cost compared to phrase-based systems. Here, we focus on…

Computation and Language · Computer Science 2017-05-08 Jacob Devlin