What is the difference between Deep Q-Network (DQN) and Double DQN?

Machine Learning Hard

Machine Learning — Hard

What is the difference between Deep Q-Network (DQN) and Double DQN?

Key points

  • Double DQN separates action selection and evaluation
  • Standard DQN uses the same network for both tasks
  • Overestimation bias is a common challenge in Q-learning algorithms

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