Notes on the Exact RG equation and the Wheeler-DeWitt equation

In this note, in the context of the AdS/CFT correspondence, the holographic derivation of the Wilsonian effective action is proposed. Then, the exact RG equation in the boundary theory is derived from the Wheeler-DeWitt equation of the bulk, following the suggestion of arXiv:hep-th/9912012,arXiv:hep-th/9912018, and arXiv:1010.1264. The relationship between the exact RG and Stochastic Quantization is briefly discussed.