Yifeng Liu
Yifeng Liu has 2 papers in our library, in 2025–2026, most of them on Machine translation, Multilingual & cross-lingual NLP, Low-resource languages; often with Jiajun Chen, Lei Li, Shuaijie She.
OpenAlex · ORCID · h-index 4 · 12 works · 60 citations OpenAlex, 2026-10-14
📄 2 works in our library · 🔗 Cited 437 times in our library · ⭐ Paper Stars ranking: #9107
Affiliations
Fields, topics and concepts
📚 Shelves 4The field of science this work belongs to (OpenAlex fields).Artificial Intelligence · 2 worksArts and Humanities · 2 worksComputer Science · 2 worksLanguage and Linguistics · 2 works
🧭 Topics 4Research subjects and languages the work is about.Reasoning · 1 workLow-resource languages · 1 workMachine translation · 1 workMultilingual & cross-lingual NLP · 1 work
Works by year
2020s
Papers
- R-PRM: Reasoning-Driven Process Reward Modeling (2025 · 18 citations)
Process Reward Models (PRMs) score each step of an LLM's mathematical reasoning. Most existing PRMs output a score directly, which limits how well they learn and gives no explanation for a judgment. Step-level labeled data is also scarce. R-PRM addresses this by having the reward model write an analysis of each step… - Mending the Holes: Mitigating Reward Hacking in Reinforcement Learning for Multilingual Translation (2026 · 2 citations)
LLM translation quality drops sharply for low-resource languages, and the usual post-training fixes require parallel or preference data that these languages often lack.
Co-authors here
Venues
- Conference on Empirical Methods in Natural Language Processing (EMNLP): EMNLP 2025
- Findings of the Association for Computational Linguistics: Findings of the Association for Computational Linguistics 2026
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