Study Reinforcement Learning

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track two of eight

Classical RL

About 21 hours, 19% of the whole. 7 lectures, 1 with an exercise.

policy πenvironmentactionstate, reward
Figure.The reward comes from the world.

The environment gives the reward. Off-policy and model-based methods, exploration, multi-agent RL, world models, meta-RL, robotics.

Start with lecture 07. Each lecture lists what to read first, and ends with a checkpoint: something to do with the page closed.

  1. 07Off-Policy Learning - SAC and TD32–3 h

    checkpointExplain what a replay buffer buys you and why off-policy methods need extra machinery to stay stable.

    ← start here

  2. 08Model-based reinforcement learning2–3 h

    checkpointExplain when learning a model is worth it and how model error bites you.

    video

  3. 20Exploration: from ε-greedy to intrinsic motivation~3 h + exercise

    checkpointExplain why uniform random exploration fails on Montezuma's Revenge and what RND's prediction-error bonus computes. Then do the exercise: exercises/20-exploration/ (RND on a sparse-reward chain MDP, tests green).

    exercisevideo

  4. 21Multi-agent RL and self-play~3 h

    checkpointExplain why naive independent Q-learning fails when other agents learn too, and what fictitious self-play buys you in non-transitive games.

    video

  5. 22World models~3 h

    checkpointExplain the latent-dynamics premise (Dreamer family) and how MuZero learns a model that's only as accurate as needed for planning.

    video

  6. 32Meta-RL and in-context RL2–3 h

    checkpointExplain how MAML differs from RL² in *where* the adaptation happens, and what Algorithm Distillation learns from the histories of an RL algorithm.

  7. 33Robotics RL2–3 h

    checkpointExplain why off-policy methods dominate real-robot work and what a VLA model contributes vs. a from-scratch RL policy.

Exercises in this track

On video