Atomic Skills are the Prerequisite: When Reinforcement Learning Synthesizes Compositional Reasoning, and When It Only Amplifies
A new research paper explores how Reinforcement Learning (RL) can synthesize novel reasoning skills, rather than just amplifying existing ones. The study, focusing on "Complementary Reasoning," found that models trained solely with Supervised Fine-Tuning (SFT) excel at memorizing known information but fail to generalize to new contexts. However, RL significantly improves generalization, but only if the base model has first mastered independent atomic skills through SFT. This suggests a two-stage approach of atomic skill training followed by RL is a promising path for developing complex reasoning capabilities in AI. AI
IMPACT Suggests a method for developing AI that can generalize better to novel information and reasoning tasks.