2 papers
cs.LG2026
Good Rankers, Bad Objectives: Bilinear Contrastive Critics under Expressive Policy Search
Ayushman Singh, Siddharth Aphale
Good action rankings do not make a contrastive critic safe to maximize. These critics increasingly act as value-like objectives for best-of- selection, planning, and critic-guid…
cs.LG2026
SCOUT: Per-Context Reset Curricula for Sparse-Reward Reinforcement Learning
Siddharth Aphale, Ayushman Singh
Sparse-reward reinforcement learning often fails because rollouts from the unassisted evaluation start rarely reach later task stages. Reset curricula address this by starting some…