Create: 2024-12-24 Update: 2025-07-05 02:33:14

Все же здесь DS и знают базовые метрики?
Precision?
Precision@k?
А ничего вы не знаете, канальи! 🙈

Прошло пару лет как коллеги со светлой стороны Сбера выпустили свою замечательную статью на NIPS, примечательную такой картинкой

Про то как в разных recsys либах метрики считаются по-разному 😱
Но хотя бы precision@k вроде одинаково? Или нет? 🤔

Рассмотрим угловой кейс – на что делить, когда кандидатов сгенерилось меньше k? 🤓

Правильный ответ здесь– делить на k !!!!
Институт NIST– National Institute for Standards and Technology распространяет код как считать правильно 🥳

На для catboost закон не писан – он делит на число кандидатов 🤬😡🥵

Будьте внимательны! Или перепроверяйте за пакетами или считайте сами!

Kantor.AI

Forwarded from Дата канальи — про «специалистов» в данных / ML / AI

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6.6K viewsDec 24, 2024 at 13:40

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Telegram and Signal Havens for Right-Wing Extremists

Since the violent storming of Capitol Hill and subsequent ban of former U.S. President Donald Trump from Facebook and Twitter, the removal of Parler from Amazon’s servers, and the de-platforming of incendiary right-wing content, messaging services Telegram and Signal have seen a deluge of new users. In January alone, Telegram reported 90 million new accounts. Its founder, Pavel Durov, described this as “the largest digital migration in human history.” Signal reportedly doubled its user base to 40 million people and became the most downloaded app in 70 countries. The two services rely on encryption to protect the privacy of user communication, which has made them popular with protesters seeking to conceal their identities against repressive governments in places like Belarus, Hong Kong, and Iran. But the same encryption technology has also made them a favored communication tool for criminals and terrorist groups, including al Qaeda and the Islamic State.

Все же здесь DS и знают базовые метрики?

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