Winnie Xu
Winnie Xu has 2 papers in our library, in 2022–2025, most of them on Language models & pretraining; often with Aitor Lewkowycz, Amanpreet Singh, Charles Sutton.
OpenAlex · ORCID · h-index 8 · 31 works · 205 citations OpenAlex, 2026-10-14
📄 2 works in our library · 🔗 Cited 85 times in our library · 1 more in our library without a page yet · ⭐ Paper Stars ranking: #7765
Affiliations
🏥Columbia University Irving Medical CenterNew York ·
United States2023–2024 · 4 papers🎓Columbia UniversityNew York ·
United States2024 · 1 paper🏥Children's Hospital of Fudan UniversityShanghai ·
China2020 · 10 papers🎓Fudan UniversityShanghai ·
China2020 · 10 papers🎓University of TorontoToronto ·
Canada2021–2022 · 5 papers🎓University of PennsylvaniaPhiladelphia ·
United States2021–2023 · 4 papers🏢CohereSan Francisco ·
United States2021–2022 · 2 papers
Fields, topics and concepts
📚 Shelves 4The field of science this work belongs to (OpenAlex fields).Artificial Intelligence · 2 worksArts and Humanities · 2 worksComputer Science · 2 worksLanguage and Linguistics · 2 works
🧭 Topics 1Research subjects and languages the work is about.Language models & pretraining · 1 work
Works by year
2020s
Papers
- Language Model Cascades (2022 · 89 citations)
The paper addresses how to reason about the many ad hoc ways large language models are chained or repeatedly queried. - Anchored Preference Optimization and Contrastive Revisions: Addressing Underspecification in Alignment (2025 · 20 citations)
The authors argue that preference-based alignment of LLMs is underspecified in two ways. First, the winning and losing responses in a preference pair often differ in many irrelevant aspects, which blurs what the model should learn. Second, standard contrastive objectives do not consider whether the target model is…
All works
- Language Model CascadesarXiv:2207.10342David Dohan, Winnie Xu, Aitor Lewkowycz, et al.2022 · 89 citations
- Anchored Preference Optimization and Contrastive Revisions: Addressing Underspecification in AlignmentTransactions of the Association for Computational Linguistics (TACL)Karel D'Oosterlinck, Winnie Xu, Chris Develder, et al.2025 · 20 citations
- Deep Latent State Space Models for Time-Series Generation ↗arXiv (Cornell University) · no summary yetLinqi Zhou et al.2022 · 4 citations
Co-authors here
- Aitor Lewkowycz
- Amanpreet Singh
- Charles Sutton
- Chris Develder
- Christopher E. Potts
- David Dohan
- Douwe Kiela
- Henryk Michalewski
- Jacob Austin
- Jascha Sohl-dickstein
- Karel D'Oosterlinck
- Kevin P. Murphy
Venues
- Transactions of the Association for Computational Linguistics (TACL): Transactions of the Association for Computational Linguistics (TACL) 2025
Cited by
Updated
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