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こうさけんてい 交差検定
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Noun
1. cross-validation​Mathematics
Wikipedia definition
2. Cross-validation (statistics)​Cross-validation, sometimes called rotation estimation, is a technique for assessing how the results of a statistical analysis will generalize to an independent data set. It is mainly used in settings where the goal is prediction, and one wants to estimate how accurately a predictive model will perform in practice.
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