Variable distribution determination method and system based on optimal transmission and terminal equipment

The invention discloses a variational distribution determination method and system based on optimal transmission and terminal equipment, and the method comprises the steps: obtaining variational distribution and prior distribution, measuring the distance between the variational distribution and the prior distribution based on an optimal transmission theory, and constructing a variational objective function; determining a dual form of the regularized optimal transmission distance, and calculating a dual variable of the regularized optimal transmission distance based on a Sinkhorn algorithm; and optimizing the variational objective function based on a random optimization strategy, updating variational parameters, obtaining target variational distribution based on the updated variational parameters, and taking the target variational distribution as approximation of posterior distribution. According to the method, a variational objective function with higher robustness is constructed based on the optimal transmis