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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).
#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).
Stocks closed in the red Friday as investors weighed upbeat remarks from Russian President Vladimir Putin about diplomatic discussions with Ukraine against a weaker-than-expected print on U.S. consumer sentiment. Telegram has become more interventionist over time, and has steadily increased its efforts to shut down these accounts. But this has also meant that the company has also engaged with lawmakers more generally, although it maintains that it doesn’t do so willingly. For instance, in September 2021, Telegram reportedly blocked a chat bot in support of (Putin critic) Alexei Navalny during Russia’s most recent parliamentary elections. Pavel Durov was quoted at the time saying that the company was obliged to follow a “legitimate” law of the land. He added that as Apple and Google both follow the law, to violate it would give both platforms a reason to boot the messenger from its stores. On Feb. 27, however, he admitted from his Russian-language account that "Telegram channels are increasingly becoming a source of unverified information related to Ukrainian events." Perpetrators of such fraud use various marketing techniques to attract subscribers on their social media channels. But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website.
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