Redefining Machine Translation on Social Network Services with Large Language Models

Fuente: arXiv
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Autori principali: Guo, Hongcheng, Zhao, Fei, Cao, Shaosheng, Lyu, Xinze, Liu, Ziyan, Wang, Yue, Wang, Boyang, Li, Zhoujun, Lu, Chonggang, Xu, Zhe, Hu, Yao
Natura: Preprint
Pubblicazione: 2025
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author Guo, Hongcheng
Zhao, Fei
Cao, Shaosheng
Lyu, Xinze
Liu, Ziyan
Wang, Yue
Wang, Boyang
Li, Zhoujun
Lu, Chonggang
Xu, Zhe
Hu, Yao
author_facet Guo, Hongcheng
Zhao, Fei
Cao, Shaosheng
Lyu, Xinze
Liu, Ziyan
Wang, Yue
Wang, Boyang
Li, Zhoujun
Lu, Chonggang
Xu, Zhe
Hu, Yao
contents The globalization of social interactions has heightened the need for machine translation (MT) on Social Network Services (SNS), yet traditional models struggle with culturally nuanced content like memes, slang, and pop culture references. While large language models (LLMs) have advanced general-purpose translation, their performance on SNS-specific content remains limited due to insufficient specialized training data and evaluation benchmarks. This paper introduces RedTrans, a 72B LLM tailored for SNS translation, trained on a novel dataset developed through three innovations: (1) Supervised Finetuning with Dual-LLM Back-Translation Sampling, an unsupervised sampling method using LLM-based back-translation to select diverse data for large-scale finetuning; (2) Rewritten Preference Optimization (RePO), an algorithm that identifies and corrects erroneous preference pairs through expert annotation, building reliable preference corpora; and (3) RedTrans-Bench, the first benchmark for SNS translation, evaluating phenomena like humor localization, emoji semantics, and meme adaptation. Experiments show RedTrans outperforms state-of-the-art LLMs. Besides, RedTrans has already been deployed in a real-world production environment, demonstrating that domain-specific adaptation, effectively bridges the gap between generic and culturally grounded translation systems.
format Preprint
id arxiv_https___arxiv_org_abs_2504_07901
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Redefining Machine Translation on Social Network Services with Large Language Models
Guo, Hongcheng
Zhao, Fei
Cao, Shaosheng
Lyu, Xinze
Liu, Ziyan
Wang, Yue
Wang, Boyang
Li, Zhoujun
Lu, Chonggang
Xu, Zhe
Hu, Yao
Computation and Language
The globalization of social interactions has heightened the need for machine translation (MT) on Social Network Services (SNS), yet traditional models struggle with culturally nuanced content like memes, slang, and pop culture references. While large language models (LLMs) have advanced general-purpose translation, their performance on SNS-specific content remains limited due to insufficient specialized training data and evaluation benchmarks. This paper introduces RedTrans, a 72B LLM tailored for SNS translation, trained on a novel dataset developed through three innovations: (1) Supervised Finetuning with Dual-LLM Back-Translation Sampling, an unsupervised sampling method using LLM-based back-translation to select diverse data for large-scale finetuning; (2) Rewritten Preference Optimization (RePO), an algorithm that identifies and corrects erroneous preference pairs through expert annotation, building reliable preference corpora; and (3) RedTrans-Bench, the first benchmark for SNS translation, evaluating phenomena like humor localization, emoji semantics, and meme adaptation. Experiments show RedTrans outperforms state-of-the-art LLMs. Besides, RedTrans has already been deployed in a real-world production environment, demonstrating that domain-specific adaptation, effectively bridges the gap between generic and culturally grounded translation systems.
title Redefining Machine Translation on Social Network Services with Large Language Models
topic Computation and Language
url https://arxiv.org/abs/2504.07901