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Everything about Policy gradient method

Class of reinforcement learning algorithms

Policy gradient methods are a class of reinforcement learning algorithms and a sub-class of policy optimization methods. Unlike value-based methods which learn a value function to derive a policy, policy optimization methods directly learn a policy function that selects actions without consulting a value function. For policy gradient to apply, the policy function is parameterized by a differentiable parameter. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Policy gradient methodA 5-minute orientation
  2. Skim a recent paper: Global Optimality Guarantees for Policy Gradient MethodsInfluential work since 2022
  3. Pick up a classic book: Decision Making HandbookThe most-reprinted book on the subject
  4. Read the landmark paper: Learning CPG-based biped locomotion with a policy gradient methodCited 81 times
  5. Go sideways: Proximal policy optimizationA closely related topic
  6. Go sideways: Actor-critic algorithmA closely related topic

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🏆 Landmark papers (most cited)

🆕 Influential since 2022

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