«Основы больших данных» обеспечивают прагматичное и серьезное введение в область больших данных. Популярный ИТ-автор Томас Эрл и его команда четко объясняют ключевые концепции, теорию и терминологию Big Data, а также фундаментальные технологии и методы. Весь охват материала книги поддерживается примерами из практики и многочисленными простыми диаграммами.
Эта книга представляет:
– открытие фундаментальных концепций Big Data и того, что отличает эту технологию от предыдущих форм анализа данных и науки о данных;
– понимание бизнес-мотиваций и стимулов, связанных с адаптацией к большим данным для оперативных улучшений за счет инноваций;
– планирование стратегических, бизнес-мотивированных инициатив на основе больших данных;
– рассмотрение таких вопросов, как менеджмент данными, руководство и безопасность;
– распознавание 5 “V” характеристик наборов данных в средах больших данных: объем, скорость, разнообразие, достоверность и ценность;
– объяснение отношений больших данных с OLTP, OLAP, ETL, хранилищами данных и витринами данных;
– работа с большими данными в структурированных, неструктурированных, полуструктурированных форматах и форматах метаданных;
– увеличение ценности за счет интеграции ресурсов больших данных с мониторингом эффективности бизнеса;
– понимание того, как большие данные используют распределенную и параллельную обработку;
– использование NoSQL и других технологий для удовлетворения различных требований к обработке больших данных;
– использование статистических подходов для количественного и качественного анализа;
– Применение методов вычислительного анализа, включая машинное обучение.
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TOKYO — “Love Rollercoaster” was blaring from the speakers at Shiokaze Park, but for American beach volleyball players Kelly Claes and Sarah Sponcil, it was another ride on the rollercoaster of weirdness as they took on a tough Brazilian team on a stiflingly hot Saturday morning.
Team USA’s youngest-ever beach volleyball team was able to dispatch Ana Patricia Silva Ramos and Rebecca Cavalcanti Barbossa Silva in three sets to win their third straight victory in the Tokyo Olympics and stay in medal contention.
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But Tokyo is under a state of emergency because of a rise in Covid-19 cases, so there was only a smattering of applause when it was over. Most of the 12,000 seats were empty.
“Yes,” they answered in unison when asked if they find it jarring to compete to an audience of empty seats.
“We’ve gotten kind of used to it, but it’s still weird,” Claes, her skin glazed with sweat and sand, said after the match. “You can’t feed off their energy, so we have to feed off our energy.”
What’s worse, Sponsil said, is they can’t really cut loose and celebrate. They’re only allowed to spend two hours a day together because Claes, 25, is in quarantine until Sunday.
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When Dai Xiao Lei arrived at her Beijing apartment with her husband and son, after a long flight back from Canada, her mother-in-law and sister-in-law were already waiting inside.
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They wanted to take her 16-month-old to their family home in Gaoyang, several hours’ drive away, Dai said. Her then-husband seemed unsurprised and told her he must have forgotten to mention it, she said.
“We never discussed this and there was no prior agreement at all,” she said. “This is not something that I agreed to. They didn’t care.”
Dai tried to refuse, locking her son in his bedroom. But, she said, her now-former husband had been physically abusive and she was afraid. With no friends, family or neighbors nearby who could help, several hours later she conceded.
In the following months, Dai said her ex-husband denied her repeated requests to see her son. He filed for divorce, claiming she was “irresponsible” and “didn’t have time to take care of the son due to work,” according to court documents reviewed by CNN. Dai, a Canadian citizen, went to the Beijing police and the Canadian consulate — but she said authorities called it a private family matter and that there was nothing they could do.
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When Dai Xiao Lei arrived at her Beijing apartment with her husband and son, after a long flight back from Canada, her mother-in-law and sister-in-law were already waiting inside.
https://notepin.co/shared/clxmnyg https://sites.google.com/view/NfxLQA5TM7gnuiHL
They wanted to take her 16-month-old to their family home in Gaoyang, several hours’ drive away, Dai said. Her then-husband seemed unsurprised and told her he must have forgotten to mention it, she said.
“We never discussed this and there was no prior agreement at all,” she said. “This is not something that I agreed to. They didn’t care.”
Dai tried to refuse, locking her son in his bedroom. But, she said, her now-former husband had been physically abusive and she was afraid. With no friends, family or neighbors nearby who could help, several hours later she conceded.
In the following months, Dai said her ex-husband denied her repeated requests to see her son. He filed for divorce, claiming she was “irresponsible” and “didn’t have time to take care of the son due to work,” according to court documents reviewed by CNN. Dai, a Canadian citizen, went to the Beijing police and the Canadian consulate — but she said authorities called it a private family matter and that there was nothing they could do.
Євген –
Я надаю перевагу мові оригиналу для іт літератури. Але добре що на ринку є такий варіант. Перша частина для початківців, друга більш складна. Технічний аспект важливіший за бізнесовий, але автор вибрає саме такий формат.