collaborators

6 papers

cs.CL2026

Diverging Preferences: When do Annotators Disagree and do Models Know?

Michael JQ Zhang, Zhilin Wang, Jena D. Hwang +6

We examine diverging preferences in human-labeled preference datasets. We develop a taxonomy of disagreement sources spanning ten categories across four high-level classes and find…

cs.CL2025

Let Them Down Easy! Contextual Effects of LLM Guardrails on User Perceptions and Preferences

Mingqian Zheng, Wenjia Hu, Patrick Zhao +5

Current LLMs are trained to refuse potentially harmful input queries regardless of whether users actually had harmful intents, causing a tradeoff between safety and user experience…

cs.LG2025

DataDecide: How to Predict Best Pretraining Data with Small Experiments

Ian Magnusson, Nguyen Tai, Ben Bogin +10

Because large language models are expensive to pretrain on different datasets, using smaller-scale experiments to decide on data is crucial for reducing costs. Which benchmarks and…

cs.CY2025

Intentionally Unintentional: GenAI Exceptionalism and the First Amendment

David Atkinson, Jena D. Hwang, Jacob Morrison

This paper challenges the assumption that courts should grant First Amendment protections to outputs from large generative AI models, such as GPT-4 and Gemini. We argue that becaus…

cs.CV2025

Semantic and Expressive Variation in Image Captions Across Languages

Andre Ye, Sebastin Santy, Jena D. Hwang +2

Computer vision often treats human perception as homogeneous: an implicit assumption that visual stimuli are perceived similarly by everyone. This assumption is reflected in the wa…

cs.CL2025

Tulu 3: Pushing Frontiers in Open Language Model Post-Training

Nathan Lambert, Jacob Morrison, Valentina Pyatkin +20

Language model post-training is applied to refine behaviors and unlock new skills across a wide range of recent language models, but open recipes for applying these techniques lag…