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Double DQN: decoupled action selection and target evaluation

Contribution grade

Deep value-based reinforcement learning · Human-designed research method or resource

Reference score170,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Adapted Double Q-learning to deep Q-networks by selecting next actions with the online network and evaluating them with a separate target network, reducing maximization overestimation in tested tasks.

Scientific scope

Adapted Double Q-learning to deep Q-networks by selecting next actions with the online network and evaluating them with a separate target network, reducing maximization overestimation in tested tasks. Extends earlier tabular Double Q-learning rather than inventing it. Reducing observed overestimation does not make every learned critic unbiased, remove possible underestimation or guarantee neural convergence; Atari results concern specified protocols.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Extends earlier tabular Double Q-learning rather than inventing it. Reducing observed overestimation does not make every learned critic unbiased, remove possible underestimation or guarantee neural convergence; Atari results concern specified protocols.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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