How can I handle sparse rewards in reinforcement learning?
Sparse rewards can be challenging. One approach is to use reward shaping to provide more frequent feedback.
What is reward shaping?
Reward shaping involves modifying the reward signal to provide additional guidance, helping the agent learn faster.
Are there any algorithms specifically designed for sparse rewards?
Yes, algorithms like Hindsight Experience Replay and Intrinsic Motivation can be effective in such scenarios.
Can you give an example of intrinsic motivation?
Intrinsic motivation can involve giving the agent rewards for exploring new states or achieving subgoals.
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