activity
20202026
most citedIterative Translation Refinement with Large Language Models

14 citations · 27 across the 35 of their papers we have counts for

collaborators

36 papers

cs.CL2026

Tracing Stereotypes from Representation to Output in Multilingual LLMs

Ariun-Erdene Tumurchuluun, Yusser Al Ghussin, Pinzhen Chen +2

Multilingual LLMs show stereotype-related behavior that varies across languages, but behavioral scores do not show where the relevant information is represented or how it affects t…

cs.CL2026

Last Translation Benchmark

Vilém Zouhar, Niyati Bafna, Mukund Choudhary +263

For scientific progress, we need benchmarks that test the limits of state-of-the-art models, and evaluation methods that inform us about failure cases. As models get stronger, stan…

cs.CL2026

Cultivar: A Contrastive and Locale-Oriented Translation Benchmark for Investigating Contamination and Localisation Robustness

Pinzhen Chen, Koel Dutta Chowdhury, Xiaoya Xu +20

Multilingual translation benchmarks are typically sourced in English and translated into other languages, treating language pairs as the unit of evaluation---a design that is prone…

cs.CL2026

Reinforcement Learning Elicits Contextual Learning of Unseen Language Translation

Hanxu Hu, Zdeněk Šnajdr, Pinzhen Chen +2

Prior work has shown that large language models (LLMs) can translate unseen or low-resource languages by undergoing continued training or even by encoding a grammar book in their c…

cs.CL2026

When Flores Bloomz Wrong: Cross-Direction Contamination in Machine Translation Evaluation

David Tan, Pinzhen Chen, Josef van Genabith +1

Large language models (LLMs) can be benchmark-contaminated, resulting in inflated scores that mask memorization as generalization, and in multilingual settings, this memorization c…

cs.CL2025

HPLT 3.0: Very Large-Scale Multilingual Resources for LLMs and MT. Mono- and Bi-lingual Data, Multilingual Evaluation, and Pre-Trained Models

Stephan Oepen, Nikolay Arefev, Mikko Aulamo +29

We present an ongoing initiative to provide open, very large, high-quality, and richly annotated textual datasets for almost 200 languages. At 30 trillion tokens, this is likely th…

cs.AI2025

MatheMagic: Generating Dynamic Mathematics Benchmarks Robust to Memorization

Dayyán O'Brien, Barry Haddow, Emily Allaway +1

Conducting contamination-free evaluation of mathematical capabilities can be difficult for two reasons: models may memorize a test set once it is made public, and current mathemati…

cs.CL2025

DocHPLT: A Massively Multilingual Document-Level Translation Dataset

Dayyán O'Brien, Bhavitvya Malik, Ona de Gibert +3

Existing document-level machine translation resources are only available for a handful of languages, mostly high-resourced ones. To facilitate the training and evaluation of docume…

cs.AR2025

A3D-MoE: Acceleration of Large Language Models with Mixture of Experts via 3D Heterogeneous Integration

Wei-Hsing Huang, Janak Sharda, Cheng-Jhih Shih +6

Conventional large language models (LLMs) are equipped with dozens of GB to TB of model parameters, making inference highly energy-intensive and costly as all the weights need to b…

cs.AI2025

CHARM: Calibrating Reward Models With Chatbot Arena Scores

Xiao Zhu, Chenmien Tan, Pinzhen Chen +4

Reward models (RMs) play a crucial role in Reinforcement Learning from Human Feedback by serving as proxies for human preferences in aligning large language models. However, they s…

cs.CL2025

XL-Suite: Cross-Lingual Synthetic Training and Evaluation Data for Open-Ended Generation

Vivek Iyer, Pinzhen Chen, Ricardo Rei +1

Cross-lingual open-ended generation - responding in a language different from that of the query - is an important yet understudied problem. This work proposes XL-Instruct, a novel…

cs.CL2025

An Expanded Massive Multilingual Dataset for High-Performance Language Technologies (HPLT)

Laurie Burchell, Ona de Gibert, Nikolay Arefyev +32

Training state-of-the-art large language models requires vast amounts of clean and diverse textual data. However, building suitable multilingual datasets remains a challenge. In th…

cs.CL2025

Generalizing From Short to Long: Effective Data Synthesis for Long-Context Instruction Tuning

Wenhao Zhu, Pinzhen Chen, Hanxu Hu +4

Long-context modelling for large language models (LLMs) has been a key area of recent research because many real world use cases require reasoning over longer inputs such as docume…

cs.CL2024

Context and System Fusion in Post-ASR Emotion Recognition with Large Language Models

Pavel Stepachev, Pinzhen Chen, Barry Haddow

Large language models (LLMs) have started to play a vital role in modelling speech and text. To explore the best use of context and multiple systems' outputs for post-ASR speech em…

cs.CL2024

Pitfalls and Outlooks in Using COMET

Vilém Zouhar, Pinzhen Chen, Tsz Kin Lam +2

The COMET metric has blazed a trail in the machine translation community, given its strong correlation with human judgements of translation quality. Its success stems from being a…

cs.CL2024★ 1 cited

EMMA-500: Enhancing Massively Multilingual Adaptation of Large Language Models

Shaoxiong Ji, Zihao Li, Jaakko Paavola +7

In this work, we introduce EMMA-500, a large-scale multilingual language model continue-trained on texts across 546 languages designed for enhanced multilingual performance, focusi…

cs.CL2024

Quality or Quantity? On Data Scale and Diversity in Adapting Large Language Models for Low-Resource Translation

Vivek Iyer, Bhavitvya Malik, Pavel Stepachev +3

Despite the recent popularity of Large Language Models (LLMs) in Machine Translation (MT), their performance in low-resource languages (LRLs) still lags significantly behind Neural…

cs.CL2024

Is It Good Data for Multilingual Instruction Tuning or Just Bad Multilingual Evaluation for Large Language Models?

Pinzhen Chen, Simon Yu, Zhicheng Guo +1

Multilingual large language models are designed, claimed, and expected to cater to speakers of varied languages. We hypothesise that the current practices of fine-tuning and evalua…

eess.AS2024

Crossmodal ASR Error Correction with Discrete Speech Units

Yuanchao Li, Pinzhen Chen, Peter Bell +1

ASR remains unsatisfactory in scenarios where the speaking style diverges from that used to train ASR systems, resulting in erroneous transcripts. To address this, ASR Error Correc…

cs.CL2024

Fine-Tuning Large Language Models to Translate: Will a Touch of Noisy Data in Misaligned Languages Suffice?

Dawei Zhu, Pinzhen Chen, Miaoran Zhang +3

Traditionally, success in multilingual machine translation can be attributed to three key factors in training data: large volume, diverse translation directions, and high quality.…

cs.CL2024

How Many Languages Make Good Multilingual Instruction Tuning? A Case Study on BLOOM

Shaoxiong Ji, Pinzhen Chen

Instruction tuning a large language model with multiple languages can prepare it for multilingual downstream tasks. Nonetheless, it is yet to be determined whether having a handful…

cs.CL2024

UniArk: Improving Generalisation and Consistency for Factual Knowledge Extraction through Debiasing

Yijun Yang, Jie He, Pinzhen Chen +2

Several recent papers have investigated the potential of language models as knowledge bases as well as the existence of severe biases when extracting factual knowledge. In this wor…

cs.CL2024

EEE-QA: Exploring Effective and Efficient Question-Answer Representations

Zhanghao Hu, Yijun Yang, Junjie Xu +2

Current approaches to question answering rely on pre-trained language models (PLMs) like RoBERTa. This work challenges the existing question-answer encoding convention and explores…

cs.CL2024★ 1 cited

Fine-tuning Large Language Models with Sequential Instructions

Hanxu Hu, Simon Yu, Pinzhen Chen +1

Despite the success of existing instruction-tuned models, we find that they usually struggle to respond to queries with multiple instructions. This impairs their performance in com…