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Confused about PPO update #20

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Githuber-zwb opened this issue Jun 6, 2024 · 0 comments
Open

Confused about PPO update #20

Githuber-zwb opened this issue Jun 6, 2024 · 0 comments

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@Githuber-zwb
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I'm a bit confused about the PPO update process. In the line 110:
Screenshot from 2024-06-06 11-21-26
The rewards in a single episode ​​are normalized by subtracting the mean while divided by the variance. So why should the rewards be scaled? I found that though normalized, some truly bad rewards are scaled and important information is lost.
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