--- title: "Simon Baumgartner · Google — author profile and papers" description: "Simon Baumgartner, Google: 3 papers on Elamur Research (2021–2025), h-index 6 — affiliations, topics, co-authors and who cites them in…" canonical: "https://research.elamur.ai/free/en/authors/simon-baumgartner/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/simon-baumgartner/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Simon Baumgartner # Simon Baumgartner Simon Baumgartner has 3 papers in our library, in 2021–2025, most of them on [Information retrieval & search](https://md.research.elamur.ai/free/en/topics/information-retrieval/), [Tokenization & segmentation](https://md.research.elamur.ai/free/en/topics/tokenization/); often with [Zhen Qin](https://md.research.elamur.ai/free/en/authors/zhen-qin/), [Jiaming Shen](https://md.research.elamur.ai/free/en/authors/jiaming-shen/), [Tianqi Liu](https://md.research.elamur.ai/free/en/authors/tianqi-liu/). 3 papers in our library · 2021–2025 [OpenAlex](https://openalex.org/A5106425585) · [ORCID](https://orcid.org/0009-0005-8746-5787) · [Wikidata](https://www.wikidata.org/wiki/Q130843889) · [**h-index 6**](https://openalex.org/authors/A5106425585) · [16 works](https://openalex.org/works?filter=author.id:A5106425585) · [268 citations](https://openalex.org/works?filter=author.id:A5106425585&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 3 works in our library](https://md.research.elamur.ai/free/en/authors/simon-baumgartner/#papers) · [🔗 Cited 175 times in our library](https://md.research.elamur.ai/free/en/authors/simon-baumgartner/cited-by/) · [⭐ Paper Stars ranking: #5494](https://md.research.elamur.ai/free/en/paper-stars/page/55/#star-5494) 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=Simon+Baumgartner) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Simon+Baumgartner) · [dblp](https://dblp.org/search?q=Simon+Baumgartner) · [ACL Anthology](https://aclanthology.org/search/?q=Simon+Baumgartner) ## Affiliations [🏢**Google** Mountain View · United States 2018–2025 · 11 papers*current*](https://md.research.elamur.ai/free/en/companies/google/) · [🏢**Kaggle** San Francisco 2025 · 1 paper*current*](https://ror.org/050tqnp89) 🏛️**Google LLC** New York · [United States](https://md.research.elamur.ai/free/en/countries/united-states/) 2014Employment since 2014 · Research 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. ## Fields, topics and concepts Of its works in our library, with the number of works on each. 📚 Shelves 6 The field of science this work belongs to (OpenAlex fields).[Arts and Humanities · 3 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/) · [Computer Science · 3 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Artificial Intelligence · 3 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Language and Linguistics · 3 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/) 🧭 Topics 2 Research subjects and languages the work is about.[Tokenization & segmentation · 1 work](https://md.research.elamur.ai/free/en/topics/tokenization/) · [Information retrieval & search · 1 work](https://md.research.elamur.ai/free/en/topics/information-retrieval/) 💡 Concepts 2 Key ideas and methods explained on our concept pages.[Subword tokenization · 1 work](https://md.research.elamur.ai/free/en/concepts/subword-tokenization/) · [Tokenization · 1 work](https://md.research.elamur.ai/free/en/concepts/tokenization/) ## Works by year ### 2020s [**2025** 1 paper](https://md.research.elamur.ai/free/en/authors/simon-baumgartner/year/2025/) · [**2024** 1 paper](https://md.research.elamur.ai/free/en/authors/simon-baumgartner/year/2024/) · [**2021** 1 paper](https://md.research.elamur.ai/free/en/authors/simon-baumgartner/year/2021/) ## Papers The most cited first (OpenAlex and our library). 1. **[Charformer: Fast Character Transformers via Gradient-based Subword Tokenization](https://md.research.elamur.ai/free/en/papers/tay-2021-charformer-fast-character-transformers-gradient/)** *(2021 · 186 citations)* Most NLP models rely on a subword tokenizer that is fixed before training. This makes them fragile to rare words, typos and noisy text. It also breaks low-resource languages into many fragments and makes adaptation to new domains harder. Feeding raw characters to a Transformer avoids these issues, but the long… 2. **[LiPO: Listwise Preference Optimization through Learning-to-Rank](https://md.research.elamur.ai/free/en/papers/liu-2025-lipo-listwise-preference-optimization-through/)** *(2025 · 31 citations)* Most alignment methods that skip full RLHF, such as DPO and SLiC, learn only from pairs of responses. Human or reward-model feedback, however, often ranks several responses to the same prompt. The authors treat alignment as a Learning-to-Rank (LTR) problem. The prompt plays the role of a query, the sampled responses… 3. **[Boosting Reward Model with Preference-Conditional Multi-Aspect Synthetic Data Generation](https://md.research.elamur.ai/free/en/papers/shen-2024-boosting-reward-model-preference-conditional/)** *(2024 · 5 citations)* Reward models used to align LLMs need preference data: a prompt, two candidate answers and a label saying which is better. ## Co-authors here 12 of 22 co-authors with a page, the most papers together first. - [Zhen Qin](https://md.research.elamur.ai/free/en/authors/zhen-qin/) ×3 - [Jiaming Shen](https://md.research.elamur.ai/free/en/authors/jiaming-shen/) ×2 - [Tianqi Liu](https://md.research.elamur.ai/free/en/authors/tianqi-liu/) ×2 - [Carl Yang](https://md.research.elamur.ai/free/en/authors/carl-yang/) - [Cong Yu](https://md.research.elamur.ai/free/en/authors/cong-yu/) - [Dara Bahri](https://md.research.elamur.ai/free/en/authors/dara-bahri/) - [Donald Metzler](https://md.research.elamur.ai/free/en/authors/donald-metzler/) - [Hyung Won Chung](https://md.research.elamur.ai/free/en/authors/hyung-won-chung/) - [Jai Gupta](https://md.research.elamur.ai/free/en/authors/jai-gupta/) - [Jialu Liu](https://md.research.elamur.ai/free/en/authors/jialu-liu/) - [Junru Wu](https://md.research.elamur.ai/free/en/authors/junru-wu/) - [Michael Bendersky](https://md.research.elamur.ai/free/en/authors/michael-bendersky/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Conference of the North American Chapter of the Association for Computational Linguistics (NAACL)](https://md.research.elamur.ai/free/en/venues/naacl/): [NAACL 2025](https://md.research.elamur.ai/free/en/venues/naacl/2025/) ## Cited by Papers of our library cite their works 175 times (of the 149,439 papers whose bibliographies we read); [44 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/simon-baumgartner/cited-by/). Updated 30 October 2026