3 papers
math.CO2026
Combinatorial comparison of general galled trees, time-consistent galled trees, and simplex time-consistent galled trees
Lily Agranat-Tamir, Michael Fuchs, Bernhard Gittenberger +2
Rooted binary phylogenetic networks are extensions of rooted binary trees, adding reticulation nodes that are designed to represent evolutionary processes that involve hybridizatio…
cs.AI2025
Direct Preference Optimization with Unobserved Preference Heterogeneity: The Necessity of Ternary Preferences
Keertana Chidambaram, Karthik Vinary Seetharaman, Vasilis Syrgkanis
Reinforcement Learning from Human Feedback (RLHF) has become central to aligning large language models with human values, typically by first learning a reward model from preference…
cs.LG2025
Direct Preference Optimization With Unobserved Preference Heterogeneity: The Necessity of Ternary Preferences
Keertana Chidambaram, Karthik Vinay Seetharaman, Vasilis Syrgkanis
Reinforcement Learning from Human Feedback (RLHF) has become central to aligning large language models with human values, typically by first learning a reward model from preference…