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Effect of list length on performance of recall estimation method. The dataset shown is BPA; the overall inclusion rate, p = 0.015; and the lookback, δ = 2. Cost is averaged over 5 trials.
| List length | Cost |
|---|---|
| 1,000 | 0.453 |
| 5,000 | 0.167 |
| 10,000 | 0.110 |
| 50,000 | 0.048 |
| 100,000 | 0.037 |
