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Thank you for the explanation. It somehow seems to me that most of the RL problems can be converted to some form of SL. For example can the pong RL solution usi
by option_greek 10y ago
Thank you for the explanation. It somehow seems to me that most of the RL problems can be converted to some form of SL. For example can the pong RL solution using PG (thank you so much for that article btw) not be converted to SL by recording a human player actions for a while and labeling them based on rewards achieved ?
- gugagore 10y agoLearning a human's actions in most cases is probably a supervised learning problem. But in that case, you actually don't even want to look at the rewards. You just want to know what a human did given a specific scenario. However, any time you have a reward signal (like the score of the game) in a multi-step decision problem, like a game where you take actions sequentially (e.g. once per turn), you need RL machinery to make sense of the data. Maybe you take an action now, and you might only reap the reward of that action in the future. So how do you "label" the action right now? You label it with some measure that takes into account the future of the reward signal. So some human plays a game and gets a super high score. You only see that they got a high score at the end of the game. How do you go back and label the 150 actions that led you to the score? That's the part that is RL.
- option_greek 10y agoThank you. It makes more sense now.