What is reinforcement learning?

If you are new to the field of Artificial Intelligence (AI) or machine learning, you might be wondering what reinforcement learning is all about. In simple terms, it is learning through reinforcement. Reinforcement, as you know from general English or psychology, is the act of increasing or strengthening the choice to take a particular action in response to something, because of the perceived benefit of receiving higher rewards for taking that action. We humans are good at learning through reinforcement from a very young age. Those who have kids may be utilizing this fact more often to teach good habits to them. Nevertheless, we will all be able to relate to this, because not so long ago we all went through that phase of life! Say parents reward their kid with chocolate if the kid completes their homework on time after school every day. The kid...