--- title: "Hanchen Xia · Fudan University — author profile and papers" description: "Hanchen Xia, Fudan University: 2 papers on Elamur Research (2024–2026), h-index 0 — affiliations, topics, co-authors and who cites them in…" canonical: "https://research.elamur.ai/free/en/authors/hanchen-xia/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/hanchen-xia/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Hanchen Xia # Hanchen Xia Hanchen Xia has 2 papers in our library, in 2024–2026, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/); often with [Chen Qian](https://md.research.elamur.ai/free/en/authors/chen-qian/), [Cheng Hong Yang](https://md.research.elamur.ai/free/en/authors/cheng-hong-yang/), [Kunlun Zhu](https://md.research.elamur.ai/free/en/authors/kunlun-zhu/). 2 papers in our library · 2024–2026 [OpenAlex](https://openalex.org/A5123329644) · [**h-index 0**](https://openalex.org/authors/A5123329644) · [5 works](https://openalex.org/works?filter=author.id:A5123329644) · [0 citations](https://openalex.org/works?filter=author.id:A5123329644&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/hanchen-xia/#papers) · [🔗 Cited 63 times in our library](https://md.research.elamur.ai/free/en/authors/hanchen-xia/cited-by/) · [⭐ Paper Stars ranking: #8539](https://md.research.elamur.ai/free/en/paper-stars/page/86/#star-8539) 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=Hanchen+Xia) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Hanchen+Xia) · [dblp](https://dblp.org/search?q=Hanchen+Xia) · [ACL Anthology](https://aclanthology.org/search/?q=Hanchen+Xia) ## Affiliations [🎓**Fudan University** Shanghai · China 2026 · 2 papers*current*](https://md.research.elamur.ai/free/en/universities/fudan-university/) · [🎓**Shanghai Innovation Institute** Shanghai · China 2026 · 1 paper*current*](https://md.research.elamur.ai/free/en/universities/shanghai-innovation-institute/) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. ## Fields, topics and concepts Of its works in our library, with the number of works on each. 📚 Shelves 5 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/) · [Computer Vision and Pattern Recognition · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/computer-vision-and-pattern-recognition/) 🧭 Topics 1 Research subjects and languages the work is about.[Language models & pretraining · 1 work](https://md.research.elamur.ai/free/en/topics/language-models/) ## Works by year ### 2020s [**2026** 1 paper](https://md.research.elamur.ai/free/en/authors/hanchen-xia/year/2026/) · [**2024** 1 paper](https://md.research.elamur.ai/free/en/authors/hanchen-xia/year/2024/) ## Papers The most cited first (OpenAlex and our library). 1. **[Scaling Large Language Model-based Multi-Agent Collaboration](https://md.research.elamur.ai/free/en/papers/qian-2024-scaling-large-language-model/)** *(2024 · 70 citations)* Most LLM-based multi-agent systems use fewer than ten agents, so it has been unclear whether adding far more collaborators keeps improving results, as adding neurons does under neural scaling laws. 2. **[T: Progressive Block Scaling for Masked Diffusion Language Models Through Trajectory Aware Reinforcement Learning](https://md.research.elamur.ai/free/en/papers/xia-2026-t-star-progressive-block-scaling/)** *(2026)* Masked diffusion language models (MDMs) usually decode in blocks. Larger blocks allow more tokens to be finalized in parallel, but math reasoning accuracy tends to drop as block size grows, especially for smaller models. The authors propose T⋆, a curriculum built on the trajectory-aware RL method TraceRL. It starts… ## Co-authors here 11 co-authors with a page, the most papers together first. - [Chen Qian](https://md.research.elamur.ai/free/en/authors/chen-qian/) - [Cheng Hong Yang](https://md.research.elamur.ai/free/en/authors/cheng-hong-yang/) - [Kunlun Zhu](https://md.research.elamur.ai/free/en/authors/kunlun-zhu/) - [Maosong Sun](https://md.research.elamur.ai/free/en/authors/maosong-sun/) - [Siyu Zhu](https://md.research.elamur.ai/free/en/authors/siyu-zhu/) - [Wei Liu](https://md.research.elamur.ai/free/en/authors/wei-liu/) - [Weize Chen](https://md.research.elamur.ai/free/en/authors/weize-chen/) - [YiFei Wang](https://md.research.elamur.ai/free/en/authors/yifei-wang/) - [Yufan Dang](https://md.research.elamur.ai/free/en/authors/yufan-dang/) - [Zhiyuan Liu](https://md.research.elamur.ai/free/en/authors/zhiyuan-liu/) - [Zhuoyun Du](https://md.research.elamur.ai/free/en/authors/zhuoyun-du/) ## 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 2026](https://md.research.elamur.ai/free/en/venues/acl/2026/) ## Cited by Papers of our library cite their works 63 times (of the 149,439 papers whose bibliographies we read); [26 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/hanchen-xia/cited-by/). Updated 2 November 2026