The area of decision making and control involves selecting among several different courses of action. The available actions can be:
- Discrete:
- finite number;
- infinite number;
- Continuous:
- infinite number.
The decisions themselves can be:
- One-time: a single decision with different possible outcomes;
- Sequential: a sequence of decisions affecting the state of the same environment; a.k.a. discrete or continuous control.
The problem can be:
- Contextual: the agent making the decisions is given some kind of context – an observation of the current state that it bases it’s decision on;
Context-free: there is no context/observation for the decision – we are trying to pick an action that works best overall.