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#термин
Как меняется значение термина со временем...

Сейчас термином cross-validation (перекрёстная проверка / скользящий контроль) называют практически любой способ "честной оценки её качества" (см. wiki). Более 20 лет назад под этим понимали, в основном, тестирование с равномерными разбиениям выборки:
- Leave-p-out cross-validation,
- Leave-one-out cross-validation,
- k-fold cross-validation.
А вот когда мы выборку делим на две части, на одной обучаемся, на другой контролируемся, называлось отложенным контролем (Holdout method) - видите, тут даже в названии нет "cross-validation".

И вот что написано на Wiki: "many sources instead classify holdout as a type of simple validation, rather than a simple or degenerate form of cross-validation".

На русской Wiki, кстати, вообще радикально отождествляют cross-validation = k-fold cross-validation (что соответствует старой терминологии).



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#термин
Как меняется значение термина со временем...

Сейчас термином cross-validation (перекрёстная проверка / скользящий контроль) называют практически любой способ "честной оценки её качества" (см. wiki). Более 20 лет назад под этим понимали, в основном, тестирование с равномерными разбиениям выборки:
- Leave-p-out cross-validation,
- Leave-one-out cross-validation,
- k-fold cross-validation.
А вот когда мы выборку делим на две части, на одной обучаемся, на другой контролируемся, называлось отложенным контролем (Holdout method) - видите, тут даже в названии нет "cross-validation".

И вот что написано на Wiki: "many sources instead classify holdout as a type of simple validation, rather than a simple or degenerate form of cross-validation".

На русской Wiki, кстати, вообще радикально отождествляют cross-validation = k-fold cross-validation (что соответствует старой терминологии).

BY Small Data Science for Russian Adventurers




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