My personal definition / distinction between ML and AI is that the latter refers to an agent, whereas the former refers to an optimization procedure. True, the

My personal definition / distinction between ML and AI is that the latter refers to an agent, whereas the former refers to an optimization procedure. True, there are times where a system can be described as both to some degree, but one is typically more than the other. In the case of Amazon automation processes, I would call that ML. In that, you are more likely to tweak the parameters to tweak the procedure directly, instead of having to interface with an AI agent's "communication interface" to achieve the same.