Statistical Leverage Score
A score computed solely from stored numerical values, requiring no labels or reward signals, that measures how unusual an individual transition is relative to the replay buffer's own data, thereby identifying rare but critical transitions.
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The researchers propose a diversity-aware experience replay method based on statistical leverage scores, which improves success rates on rare tasks by identifying and preferentially sampling "unusual" transitions in the buffer.
Each stored transition can be measured for its unusualness relative to the buffer's own data via its statistical leverage score, which is computed only from the stored numbers and requires no labels, rewards, or value network.
All Facts (2)
The researchers propose a diversity-aware experience replay method based on statistical leverage scores, which improves success rates on rare tasks by identifying and preferentially sampling "unusual" transitions in the buffer.
50%UnverifiedEach stored transition can be measured for its unusualness relative to the buffer's own data via its statistical leverage score, which is computed only from the stored numbers and requires no labels, rewards, or value network.
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