--- title: "Cheng Liu — author profile and papers — Elamur Research" description: "Cheng Liu, Consejo Superior de Investigaciones Científicas: 2 papers on Elamur Research (2025–2026), h-index 31 — affiliations, topics…" canonical: "https://research.elamur.ai/free/en/authors/cheng-liu/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/cheng-liu/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Cheng Liu # Cheng Liu Cheng Liu has 2 papers in our library, in 2025–2026, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/), [Bias, fairness & safety](https://md.research.elamur.ai/free/en/topics/bias-fairness-safety/); often with [Bang Zhang](https://md.research.elamur.ai/free/en/authors/bang-zhang/), [Jia Li](https://md.research.elamur.ai/free/en/authors/jia-li/), [Jiaqi Chen](https://md.research.elamur.ai/free/en/authors/jiaqi-chen/). 2 papers in our library · 2025–2026 [OpenAlex](https://openalex.org/A5100384275) · [ORCID](https://orcid.org/0000-0001-8967-1174) · [**h-index 31**](https://openalex.org/authors/A5100384275) · [87 works](https://openalex.org/works?filter=author.id:A5100384275) · [3,738 citations](https://openalex.org/works?filter=author.id:A5100384275&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/cheng-liu/#papers) · [🔗 Cited 22 times in our library](https://md.research.elamur.ai/free/en/authors/cheng-liu/cited-by/) · [⭐ Paper Stars ranking: #8685](https://md.research.elamur.ai/free/en/paper-stars/page/87/#star-8685) The profile is the library's match of the name; two people with one name are not always told apart. Elsewhere: [Google Scholar](https://scholar.google.com/citations?view_op=search_authors&mauthors=Cheng+Liu) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Cheng+Liu) · [dblp](https://dblp.org/search?q=Cheng+Liu) · [ACL Anthology](https://aclanthology.org/search/?q=Cheng+Liu) ## Affiliations [🔬**Institut de Ciència de Materials de Barcelona** Cerdanyola del Vallès · Spain 2022–2026 · 7 papers*current*](https://ror.org/03hasqf61) · [🏛️**Consejo Superior de Investigaciones Científicas** Madrid · Spain 2025–2026 · 2 papers*current*](https://md.research.elamur.ai/free/en/government/consejo-superior-de-investigaciones-cientificas/) · [🎓**Central South University** Changsha · China 2011–2024 · 26 papers](https://md.research.elamur.ai/free/en/universities/central-south-university/) · [🎓**Tianjin University** Tianjin · China 2016–2022 · 12 papers](https://md.research.elamur.ai/free/en/universities/tianjin-university/) · [🔬**State Key Laboratory of Powder Metallurgy** Changsha 2019–2021 · 10 papers](https://ror.org/04r12t513) · [🎓**Zhejiang Sci-Tech University** Hangzhou · China 2022–2024 · 6 papers](https://ror.org/03893we55) · [🎓**Soochow University** Suzhou · China 2021–2025 · 4 papers](https://md.research.elamur.ai/free/en/universities/soochow-university/) · [🎓**Huaiyin Normal University** Huai'an · China 2022–2025 · 3 papers](https://ror.org/03xvggv44) · [🔬**Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials** Huai'an · China 2022–2025 · 3 papers](https://ror.org/05rcxrw48) · [🎓**Tsinghua Shenzhen International Graduate School** Shenzhen · China 2017–2020 · 2 papers](https://md.research.elamur.ai/free/en/universities/tsinghua-shenzhen-international-graduate-school/) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. 19 more institutions on single bylines are not listed. ## Fields, topics and concepts Of its works in our library, with the number of works on each. 📚 Shelves 4 The field of science this work belongs to (OpenAlex fields).[Artificial Intelligence · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Arts and Humanities · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/) · [Computer Science · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Language and Linguistics · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) 🧭 Topics 2 Research subjects and languages the work is about.[Language models & pretraining · 1 work](https://md.research.elamur.ai/free/en/topics/language-models/) · [Bias, fairness & safety · 1 work](https://md.research.elamur.ai/free/en/topics/bias-fairness-safety/) ## Works by year ### 2020s [**2026** 1 paper](https://md.research.elamur.ai/free/en/authors/cheng-liu/year/2026/) · [**2025** 1 paper](https://md.research.elamur.ai/free/en/authors/cheng-liu/year/2025/) ## Papers The most cited first (OpenAlex and our library). 1. **[S²R: Teaching LLMs to Self-verify and Self-correct via Reinforcement Learning](https://md.research.elamur.ai/free/en/papers/ma-2025-s-2-r-teaching-llms/)** *(2025 · 26 citations)* S$^2$R targets a practical gap. Methods that give LLMs o1-style "deep thinking" usually need huge datasets, heavy compute, or distillation from much stronger models, and it is unclear how to help weaker base models reason better. The authors treat reasoning as a sequence of alternating "solve" and "verify" actions.… 2. **[TrajGuard: Streaming Hidden-state Trajectory Detection for Decoding-time Jailbreak Defense](https://md.research.elamur.ai/free/en/papers/liu-2026-trajguard-streaming-hidden-state-trajectory/)** *(2026)* Most jailbreak defenses judge a prompt, an output, or a single internal state in isolation. This misses how risk builds up while a response is being generated. The authors compare prompt representations with decoding-time hidden states across several models. They find that jailbreak prompts stay mixed in with benign… ## Co-authors here 8 co-authors with a page, the most papers together first. - [Bang Zhang](https://md.research.elamur.ai/free/en/authors/bang-zhang/) - [Jia Li](https://md.research.elamur.ai/free/en/authors/jia-li/) - [Jiaqi Chen](https://md.research.elamur.ai/free/en/authors/jiaqi-chen/) - [Nan Du](https://md.research.elamur.ai/free/en/authors/nan-du/) - [Peisong Wang](https://md.research.elamur.ai/free/en/authors/peisong-wang/) - [Ruotian Ma](https://md.research.elamur.ai/free/en/authors/ruotian-ma/) - [Xin Zhou](https://md.research.elamur.ai/free/en/authors/xin-zhou/) - [Xingyu Li](https://md.research.elamur.ai/free/en/authors/xingyu-li/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/): [ACL 2025](https://md.research.elamur.ai/free/en/venues/acl/2025/) - [Findings of the Association for Computational Linguistics](https://md.research.elamur.ai/free/en/venues/findings/): [Findings of the Association for Computational Linguistics 2026](https://md.research.elamur.ai/free/en/venues/findings/2026/) ## Cited by Papers of our library cite their works 22 times (of the 149,439 papers whose bibliographies we read); [6 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/cheng-liu/cited-by/). Updated 1 November 2026