Basics of Reinforcement Learning for LLMs

Understanding the problem formulation and basic algorithms for RL

(Photo by Ricardo Gomez Angel on Unsplash)

Recent AI research has revealed that reinforcement learning — more specifically, reinforcement learning from human feedback (RLHF) — is a key component of training a state-of-the-art large language model (LLM). Despite this fact, most open-source research on language models heavily…