Когда вы выберете K-средние, а когда DBScan?
DBScan более устойчив к шуму.
DBScan лучше подходит, когда количество кластеров трудно угадать.
K-means имеет меньшую сложность, т. е. будет намного быстрее, особенно при большем количестве точек.
BY Библиотека собеса по Data Science | вопросы с собеседований
Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.
The messaging service and social-media platform owes creditors roughly $700 million by the end of April, according to people briefed on the company’s plans and loan documents viewed by The Wall Street Journal. At the same time, Telegram Group Inc. must cover rising equipment and bandwidth expenses because of its rapid growth, despite going years without attempting to generate revenue.
Библиотека собеса по Data Science | вопросы с собеседований from kr