--- title: "Pi Bu — author profile and papers · Evaluation & benchmarks" description: "Pi Bu, Alibaba Group: 2 papers on Elamur Research (2025–2026), h-index 2 — affiliations, topics, co-authors and who cites them in our library." canonical: "https://research.elamur.ai/free/en/authors/pi-bu/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/pi-bu/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Pi Bu # Pi Bu Pi Bu has 2 papers in our library, in 2025–2026, most of them on [Evaluation & benchmarks](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/), [Reasoning](https://md.research.elamur.ai/free/en/topics/reasoning/), [Vision & language](https://md.research.elamur.ai/free/en/topics/multimodal/); often with [Bo Zheng](https://md.research.elamur.ai/free/en/authors/bo-zheng/), [Chao Deng](https://md.research.elamur.ai/free/en/authors/chao-deng/), [Jun Song](https://md.research.elamur.ai/free/en/authors/jun-song/). 2 papers in our library · 2025–2026 [OpenAlex](https://openalex.org/A5114402301) · [**h-index 2**](https://openalex.org/authors/A5114402301) · [30 works](https://openalex.org/works?filter=author.id:A5114402301) · [15 citations](https://openalex.org/works?filter=author.id:A5114402301&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/pi-bu/#papers) · [🔗 Cited 19 times in our library](https://md.research.elamur.ai/free/en/authors/pi-bu/cited-by/) · [⭐ Paper Stars ranking: #8478](https://md.research.elamur.ai/free/en/paper-stars/page/85/#star-8478) 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=Pi+Bu) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Pi+Bu) · [dblp](https://dblp.org/search?q=Pi+Bu) · [ACL Anthology](https://aclanthology.org/search/?q=Pi+Bu) ## Affiliations [🏢**Alibaba Group** Hangzhou · China 2025–2026 · 13 papers*current*](https://md.research.elamur.ai/free/en/companies/alibaba-group/) · [🏢**Alibaba Group** George Town · Cayman Islands 2025–2026 · 3 papers*current*](https://md.research.elamur.ai/free/en/companies/alibaba-group-cayman-islands/) · [🏢**Alibaba Group** San Mateo · United States 2026 · 3 papers*current*](https://md.research.elamur.ai/free/en/companies/alibaba-group-united-states/) 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 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/) · [Computer Vision and Pattern Recognition · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/computer-vision-and-pattern-recognition/) · [Information Systems · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/information-systems/) · [Computational Theory and Mathematics · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/computational-theory-and-mathematics/) 🧭 Topics 3 Research subjects and languages the work is about.[Evaluation & benchmarks · 1 work](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/) · [Reasoning · 1 work](https://md.research.elamur.ai/free/en/topics/reasoning/) · [Vision & language · 1 work](https://md.research.elamur.ai/free/en/topics/multimodal/) ## Works by year ### 2020s [**2026** 1 paper](https://md.research.elamur.ai/free/en/authors/pi-bu/year/2026/) · [**2025** 1 paper](https://md.research.elamur.ai/free/en/authors/pi-bu/year/2025/) ## Papers The most cited first (OpenAlex and our library). 1. **[LongDocURL: a Comprehensive Multimodal Long Document Benchmark Integrating Understanding, Reasoning, and Locating](https://md.research.elamur.ai/free/en/papers/deng-2025-longdocurl-comprehensive-multimodal-long-document/)** *(2025 · 30 citations)* Evaluation of document understanding has not kept pace with large vision-language models (LVLMs). Standard datasets such as DocVQA cover only single pages and are close to saturated. Multi-page sets like MP-DocVQA and DUDE stay under 20 pages and rarely test how models connect different layout elements. 2. **[Geoparsing: Diagram Parsing for Plane and Solid Geometry with a Unified Formal Language](https://md.research.elamur.ai/free/en/papers/wang-2026-geoparsing-diagram-parsing-plane-solid/)** *(2026)* Multimodal LLMs often fail at geometry problems because they misread diagrams. They miss or invent points, lines, and relations. Prior diagram-parsing work, such as PGDP5K and FormalGeo7K, handled only plane figures. The authors build a single formal language that adopts the predicate-style notation of PGPS9K and… ## Co-authors here 11 co-authors with a page, the most papers together first. - [Bo Zheng](https://md.research.elamur.ai/free/en/authors/bo-zheng/) ×2 - [Chao Deng](https://md.research.elamur.ai/free/en/authors/chao-deng/) ×2 - [Jun Song](https://md.research.elamur.ai/free/en/authors/jun-song/) ×2 - [Peijie Wang](https://md.research.elamur.ai/free/en/authors/peijie-wang/) ×2 - [Cheng-Lin Liu](https://md.research.elamur.ai/free/en/authors/cheng-lin-liu/) - [Fei Yin](https://md.research.elamur.ai/free/en/authors/fei-yin/) - [Jian Xu](https://md.research.elamur.ai/free/en/authors/jian-xu/) - [Ming-Liang Zhang](https://md.research.elamur.ai/free/en/authors/ming-liang-zhang/) - [Xuan Zhang](https://md.research.elamur.ai/free/en/authors/xuan-zhang/) - [Yuan Gao](https://md.research.elamur.ai/free/en/authors/yuan-gao/) - [Zhong-Zhi Li](https://md.research.elamur.ai/free/en/authors/zhong-zhi-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 19 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/pi-bu/cited-by/). Updated 1 November 2026