--- title: "Weidi Xu — author profile and papers — Elamur Research" description: "Weidi Xu: 2 papers on Elamur Research (2020–2025), h-index 11 — affiliations, topics, co-authors and who cites them in our library." canonical: "https://research.elamur.ai/free/en/authors/weidi-xu/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/weidi-xu/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Weidi Xu # Weidi Xu Weidi Xu has 2 papers in our library, in 2020–2025, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/); often with [Chenchen Zhang](https://md.research.elamur.ai/free/en/authors/chenchen-zhang/), [Feng Wang](https://md.research.elamur.ai/free/en/authors/feng-wang/), [Jason Klein Liu](https://md.research.elamur.ai/free/en/authors/jason-klein-liu/). 2 papers in our library · 2020–2025 [OpenAlex](https://openalex.org/A5103257775) · [ORCID](https://orcid.org/0000-0002-7279-9339) · [Wikidata](https://www.wikidata.org/wiki/Q131009594) · [**h-index 11**](https://openalex.org/authors/A5103257775) · [29 works](https://openalex.org/works?filter=author.id:A5103257775) · [604 citations](https://openalex.org/works?filter=author.id:A5103257775&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/weidi-xu/#papers) · [🔗 Cited 127 times in our library](https://md.research.elamur.ai/free/en/authors/weidi-xu/cited-by/) · [2 more in our library without a page yet](#also) · [⭐ Paper Stars ranking: #4296](https://md.research.elamur.ai/free/en/paper-stars/page/43/#star-4296) 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=Weidi+Xu) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Weidi+Xu) · [dblp](https://dblp.org/search?q=Weidi+Xu) · [ACL Anthology](https://aclanthology.org/search/?q=Weidi+Xu) ## Affiliations [🎓**Peking University** Beijing · China 2016–2019 · 8 papers](https://md.research.elamur.ai/free/en/universities/peking-university/) · [🏢**Ant Group** Hangzhou · China 2020–2023 · 7 papers](https://md.research.elamur.ai/free/en/companies/ant-group/) · [🎓**Georgia Institute of Technology** Atlanta · United States 2020 · 2 papers](https://md.research.elamur.ai/free/en/universities/georgia-institute-of-technology/) · [🎓**South China University of Technology** Guangzhou · China 2012–2013 · 2 papers](https://md.research.elamur.ai/free/en/universities/south-china-university-of-technology/) 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. ## Concepts, shelves and topics Of its works in our library: the number of works on each and its rating among them. 📚 Shelves 5 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/) · [Information Systems · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/information-systems/) 🧭 Topics 1 Research subjects and languages the work is about.[Language models & pretraining · 2 works](https://md.research.elamur.ai/free/en/topics/language-models/) ## Works by year ### 2020s [**2025** 1 paper OpenCoder: The Open Cookbook for Top-Tier Code Large Language Models](https://md.research.elamur.ai/free/en/papers/huang-2025-opencoder-open-cookbook-top-tier/) · [**2020** 1 paper SpellGCN: Incorporating Phonological and Visual Similarities into Language Models for Chinese Spelling Check](https://md.research.elamur.ai/free/en/papers/cheng-2020-spellgcn-incorporating-phonological-visual-similarities/) ## Papers The most cited first (OpenAlex and our library). 1. **[SpellGCN: Incorporating Phonological and Visual Similarities into Language Models for Chinese Spelling Check](https://md.research.elamur.ai/free/en/papers/cheng-2020-spellgcn-incorporating-phonological-visual-similarities/)** *(2020 · 199 citations)* Chinese Spelling Check (CSC) means finding and fixing misused characters in Chinese text. Many such errors involve characters that sound or look alike but differ completely in meaning. Earlier systems used confusion sets only to narrow down candidate replacements. They did not model how similar characters relate to… 2. **[OpenCoder: The Open Cookbook for Top-Tier Code Large Language Models](https://md.research.elamur.ai/free/en/papers/huang-2025-opencoder-open-cookbook-top-tier/)** *(2025 · 81 citations)* Most open code LLMs publish only their weights. Their training data, cleaning pipelines and training recipes stay hidden, which makes it hard for researchers to reproduce results or build strong baselines. OpenCoder addresses this gap. It is a code LLM family released with everything needed to rebuild it: weights… ## All works 4 works of theirs in our library, the most cited first; 2 with a page here, the others link their original until we summarise them. 1. **[SpellGCN: Incorporating Phonological and Visual Similarities into Language Models for Chinese Spelling Check](https://md.research.elamur.ai/free/en/papers/cheng-2020-spellgcn-incorporating-phonological-visual-similarities/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Xingyi Cheng, Weidi Xu, Kunlong Chen, et al.*2020 · 199 citations* 2. **[OpenCoder: The Open Cookbook for Top-Tier Code Large Language Models](https://md.research.elamur.ai/free/en/papers/huang-2025-opencoder-open-cookbook-top-tier/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Siming Huang, Tianhao Cheng, Jason Klein Liu, et al.*2025 · 81 citations* 3. **[To Code or not to Code? Adaptive Tool Integration for Math Language Models via Expectation-Maximization](https://aclanthology.org/2025.findings-acl.159/) Findings of the Association for Computational Linguistics: ACL 2025 · original ↗ · no summary yet**Haozhe Wang et al.*2025 · 9 citations* 4. **[Harnessing Negative Signals: Reinforcement Distillation from Teacher Data for LLM Reasoning](https://aclanthology.org/2026.acl-long.74/) Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) · original ↗ · no summary yet**Shuyao Xu et al.*2026 · 3 citations* ## Co-authors here 9 co-authors with a page, the most papers together first. - [Chenchen Zhang](https://md.research.elamur.ai/free/en/authors/chenchen-zhang/) - [Feng Wang](https://md.research.elamur.ai/free/en/authors/feng-wang/) - [Jason Klein Liu](https://md.research.elamur.ai/free/en/authors/jason-klein-liu/) - [Jiaheng Liu](https://md.research.elamur.ai/free/en/authors/jiaheng-liu/) - [Jian Yang](https://md.research.elamur.ai/free/en/authors/jian-yang/) - [Linzheng Chai](https://md.research.elamur.ai/free/en/authors/linzheng-chai/) - [Siming Huang](https://md.research.elamur.ai/free/en/authors/siming-huang/) - [Yang Xu](https://md.research.elamur.ai/free/en/authors/yang-xu/) - [Yuan Qi](https://md.research.elamur.ai/free/en/authors/yuan-qi/) ## 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/) ×3: [ACL 2025](https://md.research.elamur.ai/free/en/venues/acl/2025/), [ACL 2020](https://md.research.elamur.ai/free/en/venues/acl/2020/) - Findings of the Association for Computational Linguistics: ACL 2025 ## Cited by Papers of our library cite their works 127 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/weidi-xu/cited-by/). Updated 24 October 2026