Reinforment Learning Introduction 1 - 2
Reinforcement learning, RL is a framework that let an agent to make suitable decisions to achieve best goal. Underneath math problem to solve is a Markov Decision Process, MDP. RL is different from both supervised and unsupervised learning.
Elements of RL
Apart from Agent and Environment, following elements also play central
roles: Policy, Reward Signal, Value Function, and Model of environment.
Policy, is a map from current states to actions to take. It might be
deterministic or stochastic.