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André Barreto

2 accepted papers

2021

Expected Eligibility Traces

AAAI 2021technical

The question of how to determine which states and actions are responsible for a certain outcome is known as the credit assignment problem and remains a central research question in reinforcement learning and artificial intelligence. Eligibility traces enable efficient credit assignment to the recent…

2021

The Value-Improvement Path: Towards Better Representations for Reinforcement Learning

AAAI 2021technical

In value-based reinforcement learning (RL), unlike in supervised learning, the agent faces not a single, stationary, approximation problem, but a sequence of value prediction problems. Each time the policy improves, the nature of the problem changes, shifting both the distribution of states and thei…

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