Big Data on 淳于棼的賭書潑酒

大自然不會被嘲笑

Fri, 08 Jan 2021 00:00:00 +0000

倫敦大學瑪麗王后學院的 2 位教授寫了 1 篇文章，題目是 On false positives in COVID19 testing again: we are being misled over confirmatory testing。Norman Fenton 是風險信息管理學教授；Martin Neil 是計算機科學和統計學教授。

文章內 2 幅圖說得非常清楚：

支持 “封城”所需的證據：“效益”是否超過 “成本”？
為什麼每天報告的 Covid-19 數據幾乎什麼都不告訴我們。

Fenton 教授有關 covid-19 的分析的貝葉斯網絡在下面：

進一步可以參考：

Giles Wilkes. The doubtful case for an impossible Covid-19 cost-benefit analysis.

Ch 1 Big Data's watch eye

Mon, 28 May 2018 00:00:00 +0000

Big data’s watchful eye
- What is big data?
- Examples

Big data’s watchful eye

“The world is full of obvious things which nobody by any chance ever observes.”

— Sir Arthur Conan Doyle. Sherlock Holmes: the Hound of the Baskerville, 28 (ebook pub. 2016)

What is big data?

Report to the President

“There are many definitions of big data which may differ depending on whether you are a computer scientist, a financial analyst, or an entrepreneur pitching an idea to a venture capitalist. Most definitions reflect the growing technological ability to capture, aggregate, and process an ever-greater volume, velocity and variety of data.”