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using target network to calculate last state value #93

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backpropper opened this issue Aug 20, 2020 · 4 comments
Closed

using target network to calculate last state value #93

backpropper opened this issue Aug 20, 2020 · 4 comments

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@backpropper
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Is there a reference to why we use a separate target network to calculate the last state value?

DeepRL/deep_rl/agent/OptionCritic_agent.py

Line 88 in 19db772

prediction = self.target_network(self.states)

@ShangtongZhang
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No that's an ad-hoc decision.

@backpropper
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I see. Did it help reduce variance or something else?

@ShangtongZhang
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Not sure. I didn't test the one without target network, just followed DQN

@backpropper
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ok thanks!

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@backpropper @ShangtongZhang