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Statistical power refers to the probability that a test correctly rejects the null hypothesis when the alternative hypothesis is true, usually with 80% as the acceptable lower bound.
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11/2/2026
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Unverified统计功效（Statistical Power）指在真实效应存在时研究能正确检验出显著差异的概率，通常需设定在80%或90%以上76% similarUnverifiedMost existing approaches rely on heuristic criteria to construct preference pairs, such as likelihood-based extremes that pick the samples the model assigns the highest and lowest probability as positive and negative examples.76% similarPartially VerifiedModel calibration refers to the degree to which a model's output probabilities match its actual accuracy rate; for a well-calibrated model, if the probability it gives for a certain type of question is 0.8, then about 80% of such questions are indeed answered correctly.76% similarVerifiedA "well-calibrated" probability judgment means that when a model says something has a 70% chance of occurring, the actual occurrence rate of that event across many similar predictions is close to 70%.76% similarUnverifiedThe paper applies inverse probability weighting to the sampled targets, obtaining a conditionally unbiased single-branch gradient estimate.75% similar
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