2019

Dynamic Programming Principles for Mean-Field Controls with Learning

Gu, Haotian, Guo, Xin, Wei, Xiaoli et al.

Understand

Dynamic programming principle (DPP) is fundamental for control and optimization, including Markov decision problems (MDPs), reinforcement learning (RL), and more recently mean-field controls (MFCs).

  • However, in the learning framework of MFCs, DPP has not been rigorously established, despite its critical importance for algorithm designs.
  • In this paper, we first present a simple example in MFCs with learning where DPP fails with a mis-specified Q function; and then propose the correct form of Q function in an appropriate space for MFCs with learning.
  • This particular form of Q function is different from the classical one and is called the IQ function.

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