--- title: "Jiaya Jia — author profile and papers" description: "Jiaya Jia, Hong Kong University of Science and Technology: 2 papers on Elamur Research (2023–2024), h-index 109 — affiliations, topics, co-authors and…" canonical: "https://research.elamur.ai/free/en/authors/jiaya-jia/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/jiaya-jia/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Jiaya Jia # Jiaya Jia Jiaya Jia has 2 papers in our library, in 2023–2024, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/), [Reasoning](https://md.research.elamur.ai/free/en/topics/reasoning/); often with [Xin Lai](https://md.research.elamur.ai/free/en/authors/xin-lai/), [Yukang Chen](https://md.research.elamur.ai/free/en/authors/yukang-chen/), [Haotian Tang](https://md.research.elamur.ai/free/en/authors/haotian-tang/). 2 papers in our library · 2023–2024 [OpenAlex](https://openalex.org/A5052856441) · [ORCID](https://orcid.org/0000-0002-1246-553X) · [**h-index 109**](https://openalex.org/authors/A5052856441) · [339 works](https://openalex.org/works?filter=author.id:A5052856441) · [76,392 citations](https://openalex.org/works?filter=author.id:A5052856441&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/jiaya-jia/#papers) · [🔗 517 citations in our library](https://md.research.elamur.ai/free/en/authors/jiaya-jia/cited-by/) · [5 more in our library without a page yet](#also) · [⭐ Paper Star rank #3333](https://md.research.elamur.ai/free/en/paper-stars/page/34/#star-3333) 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=Jiaya+Jia) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Jiaya+Jia) · [dblp](https://dblp.org/search?q=Jiaya+Jia) · [ACL Anthology](https://aclanthology.org/search/?q=Jiaya+Jia) ## Affiliations [🎓**Hong Kong University of Science and Technology** Hong Kong · Hong Kong 2003–2026 · 37 papers*current*](https://md.research.elamur.ai/free/en/universities/hong-kong-university-of-science-and-technology/) · [🎓**Chinese University of Hong Kong** Hong Kong · Hong Kong 2005–2026 · 281 papers](https://md.research.elamur.ai/free/en/universities/chinese-university-of-hong-kong/) · [🏢**Tencent** Shenzhen · China 2017–2020 · 32 papers](https://md.research.elamur.ai/free/en/companies/tencent/) · [🎓**University of Oxford** Oxford · United Kingdom 2021 · 2 papers](https://md.research.elamur.ai/free/en/universities/university-of-oxford/) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. 1 more institution on single bylines are not listed. ## Topics [Language models & pretraining (2)](https://md.research.elamur.ai/free/en/topics/language-models/) · [Reasoning (1)](https://md.research.elamur.ai/free/en/topics/reasoning/) ## Works by year ### 2020s [**2024** 1 paper](https://md.research.elamur.ai/free/en/papers/lai-2024-step-dpo-step-wise-preference/) · [**2023** 1 paper](https://md.research.elamur.ai/free/en/papers/chen-2023-longlora-efficient-fine-tuning-long/) ## Papers The most cited first (OpenAlex and our library). 1. **[LongLoRA: Efficient Fine-tuning of Long-Context Large Language Models](https://md.research.elamur.ai/free/en/papers/chen-2023-longlora-efficient-fine-tuning-long/)** *(2023 · 265 citations)* Extending the context window of a pre-trained LLM is usually very costly, because self-attention cost grows quadratically with sequence length. 2. **[Step-DPO: Step-wise Preference Optimization for Long-chain Reasoning of LLMs](https://md.research.elamur.ai/free/en/papers/lai-2024-step-dpo-step-wise-preference/)** *(2024 · 97 citations)* Large language models often fail at multi-step math because one slip anywhere in a long derivation ruins the final answer. ## Also in our library 5 more works of theirs are in our library without a page here yet; they will appear as we publish them. ## Co-authors here 4 co-authors with a page, the most papers together first. - [Xin Lai](https://md.research.elamur.ai/free/en/authors/xin-lai/) ×2 - [Yukang Chen](https://md.research.elamur.ai/free/en/authors/yukang-chen/) ×2 - [Haotian Tang](https://md.research.elamur.ai/free/en/authors/haotian-tang/) - [Song Han](https://md.research.elamur.ai/free/en/authors/song-han/) ## Cited by Papers of our library cite their works 517 times (of the 140,884 papers whose bibliographies we read); [25 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/jiaya-jia/cited-by/).