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Shanbo Cheng

15 accepted papers

2026

DuPO: Enabling Reliable Self-Verification via Dual Preference Optimization

ICLR 2026poster

We present DuPO, a dual learning-based preference optimization framework that generates annotation-free feedback via the generalized duality. DuPO addresses two key limitations: Reinforcement Learning with Verifiable Rewards (RLVR)’s reliance on costly labels and applicability restricted to verifiab…

Cited by 0SourceScholar
2025

EnAnchored-X2X: English-Anchored Optimization for Many-to-Many Translation

EMNLP 2025

Large language models (LLMs) have demonstrated strong machine translation capabilities for English-centric language pairs but underperform in direct non-English (x2x) translation. This work addresses this limitation through a synthetic data generation framework that leverages models’ established Eng

2025

From Tens of Hours to Tens of Thousands: Scaling Back-Translation for Speech Recognition

EMNLP 2025

Recent advances in Automatic Speech Recognition (ASR) have been largely fueled by massive speech corpora. However, extending coverage to diverse languages with limited resources remains a formidable challenge. This paper introduces Speech Back-Translation, a a scalable pipeline that improves multili

2025

SeqPO-SiMT: Sequential Policy Optimization for Simultaneous Machine Translation

ACL 2025finding

We present Sequential Policy Optimization for Simultaneous Machine Translation (SeqPO-SiMT), a new policy optimization framework that defines the simultaneous machine translation (SiMT) task as a sequential decision making problem, incorporating a tailored reward to enhance translation quality while…

2025

TRANS-ZERO: Self-Play Incentivizes Large Language Models for Multilingual Translation Without Parallel Data

ACL 2025finding

The rise of Large Language Models (LLMs) has reshaped machine translation (MT), but multilingual MT still relies heavily on parallel data for supervised fine-tuning (SFT), facing challenges like data scarcity for low-resource languages and catastrophic forgetting. To address these issues, we propose…

2024

G-DIG: Towards Gradient-based DIverse and hiGh-quality Instruction Data Selection for Machine Translation

ACL 2024long

Large Language Models (LLMs) have demonstrated remarkable abilities in general scenarios. Instruction finetuning empowers them to align with humans in various tasks. Nevertheless, the Diversity and Quality of the instruction data remain two main challenges for instruction finetuning. With regard to…

2024

MT-PATCHER: Selective and Extendable Knowledge Distillation from Large Language Models for Machine Translation

NAACL 2024long

Large Language Models (LLM) have demonstrated their strong ability in the field of machine translation, yet they suffer from high computational cost and latency. Therefore, transferring translation knowledge from giant LLMs to medium-sized machine translation models is a promising research direction…

2024

Retaining Key Information under High Compression Ratios: Query-Guided Compressor for LLMs

ACL 2024long

The growing popularity of Large Language Models has sparked interest in context compression for Large Language Models (LLMs). However, the performance of previous methods degrades dramatically as compression ratios increase, sometimes even falling to the closed-book level. This decline can be attrib…

2023

Beyond Triplet: Leveraging the Most Data for Multimodal Machine Translation

ACL 2023findings

Multimodal machine translation (MMT) aims to improve translation quality by incorporating information from other modalities, such as vision. Previous MMT systems focus on better access and use of visual information and tend to validate their methods on image-related datasets. However, these studies…

2023

BigVideo: A Large-scale Video Subtitle Translation Dataset for Multimodal Machine Translation

ACL 2023findings

We present a large-scale video subtitle translation dataset, *BigVideo*, to facilitate the study of multi-modality machine translation. Compared with the widely used *How2* and *VaTeX* datasets, *BigVideo* is more than 10 times larger, consisting of 4.5 million sentence pairs and 9,981 hours of vide…

2023

Controlling Styles in Neural Machine Translation with Activation Prompt

ACL 2023findings

Controlling styles in neural machine translation (NMT) has attracted wide attention, as it is crucial for enhancing user experience. Earlier studies on this topic typically concentrate on regulating the level of formality and achieve some progress in this area. However, they still encounter two majo…

2023

Visual Information Matters for ASR Error Correction

ICASSP 2023accepted

Aiming to improve the Automatic Speech Recognition (ASR) outputs with a post-processing step, ASR error correction (EC) techniques have been widely developed due to their efficiency in using parallel text data. Previous works mainly focus on using text or/ and speech data, which hinders the performa…

Cited by 0SourceScholar
2022

Unified Multimodal Punctuation Restoration Framework for Mixed-Modality Corpus

ICASSP 2022accepted

The punctuation restoration task aims to correctly punctuate the output transcriptions of automatic speech recognition systems. Previous punctuation models, either using text only or demanding the corresponding audio, tend to be constrained by real scenes, where unpunctuated sentences are a mixture…

Cited by 0SourceScholar
2022

switch-GLAT: Multilingual Parallel Machine Translation Via Code-Switch Decoder

ICLR 2022poster

Multilingual machine translation aims to develop a single model for multiple language directions. However, existing multilingual models based on Transformer are limited in terms of both translation performance and inference speed. In this paper, we propose switch-GLAT, a non-autoregressive multiling…

Cited by 13SourcePDFScholar
2021

Learning Kernel-Smoothed Machine Translation with Retrieved Examples

EMNLP 2021main

How to effectively adapt neural machine translation (NMT) models according to emerging cases without retraining? Despite the great success of neural machine translation, updating the deployed models online remains a challenge. Existing non-parametric approaches that retrieve similar examples from a…