In this post, I assume that a policy is a description of its behavior (like a function from state to action or distribution over action), and thus the distances mentioned indeed capture behavioral similarity. That being said, you’re right that a similar concept of distance between the internal structure of the policies would prove difficult, eventually butting against uncomputability.
Sorry for the delay in answering.
In this post, I assume that a policy is a description of its behavior (like a function from state to action or distribution over action), and thus the distances mentioned indeed capture behavioral similarity. That being said, you’re right that a similar concept of distance between the internal structure of the policies would prove difficult, eventually butting against uncomputability.