Samuel, Alfy

3 publications

ICLR 2026 Alignment-Weighted DPO: A Principled Reasoning Approach to Improve Safety Alignment Mengxuan Hu, Vivek Datla, Anoop Kumar, Zihan Guan, Sheng Li, Alfy Samuel, Daben Liu

ICLR 2026 Uncertainty as Feature Gaps: Epistemic Uncertainty Quantification of LLMs in Contextual Question-Answering Yavuz Faruk Bakman, Sungmin Kang, Zhiqi Huang, Duygu Nur Yaldiz, Catarina G Belém, Chenyang Zhu, Anoop Kumar, Alfy Samuel, Daben Liu, Salman Avestimehr, Sai Praneeth Karimireddy

NeurIPSW 2024 Refusal Tokens: A Simple Way to Calibrate Refusals in Large Language Models Neel Jain, Aditya Shrivastava, Chenyang Zhu, Daben Liu, Alfy Samuel, Ashwinee Panda, Anoop Kumar, Micah Goldblum, Tom Goldstein