Difference between revisions of "Allen's PPO Notes"
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Revision as of 19:27, 26 May 2024
Intuition: Want to avoid too large of a policy update
- Smaller policy updates more likely to converge to optimal
- Falling "off the cliff" might mean it's impossible to recover
How we solve this: Measure how much policy changes w.r.t. previous, clip ratio to <math>[1-\varepislon, 1 + \varepsilon] removing incentive to go too far.
