--- title: "Yujian Liu — author profile and papers — Elamur Research" description: "Yujian Liu, University of California, Santa Barbara: 2 papers on Elamur Research (2022–2025), h-index 9 — affiliations, topics, co-authors…" canonical: "https://research.elamur.ai/free/en/authors/yujian-liu/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/yujian-liu/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Yujian Liu # Yujian Liu Yujian Liu has 2 papers in our library, in 2022–2025, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/), [Sentiment & emotion](https://md.research.elamur.ai/free/en/topics/sentiment-emotion/), [Reasoning](https://md.research.elamur.ai/free/en/topics/reasoning/); often with [Bairu Hou](https://md.research.elamur.ai/free/en/authors/bairu-hou/), [Jacob Andreas](https://md.research.elamur.ai/free/en/authors/jacob-andreas/), [Lu Wang](https://md.research.elamur.ai/free/en/authors/lu-wang/). 2 papers in our library · 2022–2025 [OpenAlex](https://openalex.org/A5101534884) · [ORCID](https://orcid.org/0000-0002-9512-1272) · [**h-index 9**](https://openalex.org/authors/A5101534884) · [50 works](https://openalex.org/works?filter=author.id:A5101534884) · [382 citations](https://openalex.org/works?filter=author.id:A5101534884&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/yujian-liu/#papers) · [🔗 Cited 83 times in our library](https://md.research.elamur.ai/free/en/authors/yujian-liu/cited-by/) · [⭐ Paper Stars ranking: #4934](https://md.research.elamur.ai/free/en/paper-stars/page/50/#star-4934) 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=Yujian+Liu) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Yujian+Liu) · [dblp](https://dblp.org/search?q=Yujian+Liu) · [ACL Anthology](https://aclanthology.org/search/?q=Yujian+Liu) ## Affiliations [🎓**Shanghai University of Sport** Shanghai · China 2023–2026 · 9 papers*current*](https://ror.org/0056pyw12) · [🎓**University of California, Santa Barbara** Santa Barbara · United States 2023–2026 · 9 papers*current*](https://md.research.elamur.ai/free/en/universities/university-of-california-santa-barbara/) · [🎓**South China University of Technology** Guangzhou · China 2026 · 2 papers*current*](https://md.research.elamur.ai/free/en/universities/south-china-university-of-technology/) · [🎓**Zhejiang University** Hangzhou · China 2026 · 1 paper*current*](https://md.research.elamur.ai/free/en/universities/zhejiang-university/) · [🎓**Xi’an Jiaotong-Liverpool University** Suzhou · China 2021–2024 · 7 papers](https://md.research.elamur.ai/free/en/universities/xi-an-jiaotong-liverpool-university/) · [🎓**Xuchang University** Xuchang · China 2022–2025 · 2 papers](https://ror.org/03k174p87) · [🎓**Central South University of Forestry and Technology** Changsha · China 2022 · 2 papers](https://ror.org/02czw2k81) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. 10 more institutions on single bylines are not listed. ## Concepts, shelves and topics Of its works in our library: the number of works on each and its rating among them. 📚 Shelves 7 The field of science this work belongs to (OpenAlex fields).[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/) · [Artificial Intelligence · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Language and Linguistics · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) · [General Social Sciences · 1 work](https://md.research.elamur.ai/free/en/shelves/social-sciences/general-social-sciences/) · [Social Sciences · 1 work](https://md.research.elamur.ai/free/en/shelves/social-sciences/) · [Computer Vision and Pattern Recognition · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/computer-vision-and-pattern-recognition/) 🧭 Topics 3 Research subjects and languages the work is about.[Sentiment & emotion · 1 work](https://md.research.elamur.ai/free/en/topics/sentiment-emotion/) · [Language models & pretraining · 1 work](https://md.research.elamur.ai/free/en/topics/language-models/) · [Reasoning · 1 work](https://md.research.elamur.ai/free/en/topics/reasoning/) ## Works by year ### 2020s [**2025** 1 paper ThinkPrune: Pruning Long Chain-of-Thought of LLMs via Reinforcement Learning](https://md.research.elamur.ai/free/en/papers/hou-2025-thinkprune-pruning-long-chain-thought/) · [**2022** 1 paper POLITICS: Pretraining with Same-story Article Comparison for Ideology Prediction and Stance Detection](https://md.research.elamur.ai/free/en/papers/liu-2022-politics-pretraining-same-story-article/) ## Papers The most cited first (OpenAlex and our library). 1. **[POLITICS: Pretraining with Same-story Article Comparison for Ideology Prediction and Stance Detection](https://md.research.elamur.ai/free/en/papers/liu-2022-politics-pretraining-same-story-article/)** *(2022 · 70 citations)* Measuring political ideology from text is central to political science, yet no general tool works reliably across text genres. 2. **[ThinkPrune: Pruning Long Chain-of-Thought of LLMs via Reinforcement Learning](https://md.research.elamur.ai/free/en/papers/hou-2025-thinkprune-pruning-long-chain-thought/)** *(2025 · 64 citations)* Reasoning models trained to produce long chains of thought often generate redundant, inefficient reasoning, which inflates inference cost. ## Co-authors here 6 co-authors with a page, the most papers together first. - [Bairu Hou](https://md.research.elamur.ai/free/en/authors/bairu-hou/) - [Jacob Andreas](https://md.research.elamur.ai/free/en/authors/jacob-andreas/) - [Lu Wang](https://md.research.elamur.ai/free/en/authors/lu-wang/) - [Shiyu Chang](https://md.research.elamur.ai/free/en/authors/shiyu-chang/) - [Xinliang Frederick Zhang](https://md.research.elamur.ai/free/en/authors/xinliang-frederick-zhang/) - [Yang Zhang](https://md.research.elamur.ai/free/en/authors/yang-zhang/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Findings of the Association for Computational Linguistics](https://md.research.elamur.ai/free/en/venues/findings/): [Findings of the Association for Computational Linguistics 2022](https://md.research.elamur.ai/free/en/venues/findings/2022/) ## Cited by Papers of our library cite their works 83 times (of the 141,840 papers whose bibliographies we read); [3 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/yujian-liu/cited-by/). Updated 24 October 2026