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Источник @procode404 · Post #3713 · 20 авг.
🔥Тематическое моделирование LDA — [16:15] В ролике решается реальная задача Data Science — разделить отзывы на сайте по темам используя Python. Вы узнаете про LDA, предобработку текста и обучение модели, как правильно оценить результат, проанализировать его и предсказать тематику. Перейти к просмотру #видео#теория
Поиск: #pulsation
@cosmomyst · Post #164 · 21.08.2025, 00:11
🪐 In the constellation Hydra, astronomers have found R Hydrae, a star that pulses in brightness over a period of about 385 days. This "Mira variable" expands and contracts like a cosmic heartbeat, changing size and light output as it nears the end of its life, giving scientists clues about the future fate of our own Sun. ✨ #stars⚡#hydra⚡#pulsation⚡#nasa⚡#galaxy⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries
@cosmomyst · Post #113 · 10.08.2025, 20:11
🪐 In the constellation Vela, the star system HD 74423 displays an unusual cosmic phenomenon: its shape is teardrop-like rather than round, caused by the powerful gravitational pull of a nearby red dwarf companion. This distortion leads to "heartbeat" pulsations—brightenings and dimmings in rhythm with the stars’ orbits—making HD 74423 the first known one-sided pulsating star in our galaxy. ✨ #Vela⚡#heartbeatstars⚡#pulsation⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries