Policy Similarity Metric

Overview of Policy Similarity Metric (PSM) Policy Similarity Metric (PSM) is a similarity metric, used in reinforcement learning or machine learning, that helps measure how similar the behavior of one state is to another. In this context, a "state" refers to the situation or environment in which an AI agent operates or makes decisions. The main idea behind PSM is to assign "similarity scores" to different states based on how similar the optimal policies (i.e., the best decision-making strategi