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Suppose we have a DDPG algorithm. The actor has N input nodes, two hidden layers with J nodes, and S output nodes. The critic has N+S input nodes, two hidden layers with C nodes, and one output node. How does the time complexity of this algorithm could be calculated??

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  • $\begingroup$ Hello. Welcome to Artificial Intelligence Stack Exchange. My question to you is: what have you tried so far to answer your own question? Do you know what the time complexity is? $\endgroup$
    – nbro
    Nov 24, 2021 at 10:53
  • $\begingroup$ Thanks. yes, I know what it is, and I've found some ways to calculate the neural network's time complexity. But, I wonder is there a difference between neural network complexity and Rl algorithms? also in a paper related to my work there was a Q-learning time complexity analysis. But I couldn't find anything for actor-critic methods like DDPG. $\endgroup$
    – farnad
    Nov 24, 2021 at 14:01
  • $\begingroup$ I would recommend that you first provide the pseudocode of the algorithm (and the link to the paper that contains the algorithm/pseudocode) that you referring to, so that to make sure we're talking about the same thing. $\endgroup$
    – nbro
    Nov 24, 2021 at 14:05
  • $\begingroup$ I thought my question was clear enough. It's the DDPG paper link. and I've found this very helpful for neural networks [link] (ai.stackexchange.com/questions/5728/…) $\endgroup$
    – farnad
    Nov 24, 2021 at 14:10
  • $\begingroup$ So, which algorithm in that paper are you talking about? Algorithm 1? As I said above, please, edit your post to directly include these details there. $\endgroup$
    – nbro
    Nov 24, 2021 at 15:06

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