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The Signal and the Noise: The Art and Science of Prediction [Kindle Edition]

Nate Silver
4.3 out of 5 stars  See all reviews (830 customer reviews)

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Book Description

Every time we choose a route to work, decide whether to go on a second date, or set aside money for a rainy day, we are making a prediction about the future. Yet from the global financial crisis to 9/11 to the Fukushima disaster, we often fail to foresee hugely significant events. In The Signal and the Noise, the New York Times' political forecaster and statistics guru Nate Silver explores the art of prediction, revealing how we can all build a better crystal ball.



In his quest to distinguish the true signal from a universe of noisy data, Silver visits hundreds of expert forecasters, in fields ranging from the stock market to the poker table, from earthquakes to terrorism. What lies behind their success? And why do so many predictions still fail? By analysing the rare prescient forecasts, and applying a more quantitative lens to everyday life, Silver distils the essential lessons of prediction.



We live in an increasingly data-driven world, but it is harder than ever to detect the true patterns amid the noise of information. In this dazzling insider's tour of the world of forecasting, Silver reveals how we can all develop better foresight in our everyday lives.



Editorial Reviews

Amazon.com Review

Amazon Best Books of the Month, September 2012: People love statistics. Statistics, however, do not always love them back. The Signal and the Noise, Nate Silver's brilliant and elegant tour of the modern science-slash-art of forecasting, shows what happens when Big Data meets human nature. Baseball, weather forecasting, earthquake prediction, economics, and polling: In all of these areas, Silver finds predictions gone bad thanks to biases, vested interests, and overconfidence. But he also shows where sophisticated forecasters have gotten it right (and occasionally been ignored to boot). In today's metrics-saturated world, Silver's book is a timely and readable reminder that statistics are only as good as the people who wield them. --Darryl Campbell

From Bookforum

Silver doesn't offer one comprehensive theory for what makes a good prediction in his interdisciplinary tour of forecasting. But the book is a useful gloss on the tricky business of making predictions correctly. —Chris Wilson

Product Details


Customer Reviews

Most Helpful Customer Reviews
626 of 651 people found the following review helpful
Format:Hardcover|Verified Purchase
This is the best general-readership book on applied statistics that I've read. Short review: if you're interested in science, economics, or prediction: read it. It's full of interesting cases, builds intuition, and is a readable example of Bayesian thinking.

Longer review: I'm an applied business researcher and that means my job is to deliver quality forecasts: to make them, persuade people of them, and live by the results they bring. Silver's new book offers a wealth of insight for many different audiences. It will help you to develop intuition for the kinds of predictions that are possible, that are not so possible, where they may go wrong, and how to avoid some common pitfalls.

The core concept is this: prediction is a vital part of science, of business, of politics, of pretty much everything we do. But we're not very good at it, and fall prey to cognitive biases and other systemic problems such as information overload that make things worse. However, we are simultaneously learning more about how such things occur and that knowledge can be used to make predictions better -- and to improve our models in science, politics, business, medicine, and so many other areas.

The book presents real-world experience and critical reflection on what happens to research in social contexts. Data-driven models with inadequate theory can lead to terrible inferences. For example, on p. 162: "What happens in systems with noisy data and underdeveloped theory - like earthquake prediction and parts of economic and political science - is a two-step process. First, people start to mistake the noise for a signal. Second, this noise pollutes journals, blogs, and news accounts with false alarms, undermining good science and setting back our ability to understand how the system really works.
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217 of 228 people found the following review helpful
5.0 out of 5 stars Great book, and here are some takeaways November 11, 2012
Format:Hardcover|Verified Purchase
Excellent book!!! People looking for a "how to predict" silver bullet will (like some reviewers here) be disappointed, mainly because Silver is too honest to pretend that such a thing exists. The anecdotes and exposition are fantastic, and I wish we could make this book required reading for, say, everyone in the country.

During election season, everyone with a newspaper column or TV show feels entitled to make (transparently partisan) predictions about the consequences of each candidate's election to unemployment/crime/abortion/etc. This kind of pundit chatter, as Silver notes, tends to be insanely inaccurate. But there are also some amazing success stories in the prediction business. I list some chapter-by-chapter takeaways below (though there's obviously a lot depth more to the book than I can fit into a list like this):

1. People have puzzled over prediction and uncertainty for centuries.

2. TV pundits make terrible predictions, no better than random guesses. They are rewarded for being entertaining, and not really penalized for being wrong.

3. Statistics has revolutionized baseball. But computer geeks have not replaced talent scouts altogether. They're working together in more interesting ways now.

4. Weather prediction has gotten lots better over the last fifty years, due to highly sophisticated, large-scale supercomputer modeling.

5. We have almost no ability to predict earthquakes. But we know that some regions are more earthquake prone, and that in a given region an earthquake of magnitude n happens about ten times as often as an earthquake of magnitude (n+1).

6. Economists are terrible at predicting quantities such as next year's GDP. Predictions are only very slightly correlated with reality.
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154 of 171 people found the following review helpful
5.0 out of 5 stars Lively statistics November 7, 2012
By RichB
Format:Hardcover|Verified Purchase
This book explains the unerring accuracy for Nate SIlver's election predictions using Bayesian statistics. The BEST part of the book for me was that I finally understand Bayes' analysis. I used quite a few sophisticated statistical tools in my work (retired as reliability physics expert for semiconductor devices, aka chips), but I was never able to grasp Bayes Theorem until now. Wikipedia's "tutorial" was far too complicated even for a PhD, but Nate provided a simple version that a layman can understand ... and he did it using a hilarious example (look for "cheating"). In fact, I am so impressed with Bayes' analysis that I am thinking about writing a corollary to my two best technical papers grafting a Bayesian view.
Returning to the election prediction issue, consider that each poll of 1000 people has a sampling error of +-5%, easily derived from Poisson statistics. However, when one pools the results from say 25 polls (and removes bias), the sample size is increased by 25-fold, which reduces the sampling error by 5-fold, down to +-1%. Thus, one can make confident predictions over differences FAR smaller than the usual sampling error. When one combines Bayesian pooling with a state-by-state analysis, one can make astonishingly accurate predictions ... Nate predicted ALL 50 states correctly, so his electoral count was exactly on reality as well when fractional electoral counts are eliminated.
Buy the book as it is educational and fun to read.
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538 of 651 people found the following review helpful
2.0 out of 5 stars Disappointing, too much noise, too little insight September 30, 2012
Format:Hardcover
This book was a disappointment for me, and I feel that the time I spent reading it has been mostly wasted. I will first, however, describe what I thought is *good* about the book. Everything in this book is very clear and understandable. As for the content, I think that the idea of Baysean thinking is interesting and sound. The idea is that, whenever making any hypothesis (e.g. a positive mammogram is indicative of breast cancer) into a prediction (for example, that a particular woman with a positive mammogram actually has cancer), one must not forget to estimate all the following three pieces of information:

1. The general prevalence of breast cancer in population. (This is often called the "prior": how likely did you think it was that the woman had cancer before you saw the mammogram)

2. The chance of getting a positive mammogram for a woman with cancer.

3. The chance of getting a positive mammogram for a woman without cancer.

People often tend to ignore items 1 and 3 on the list, leading to very erroneous conclusions. "Bayes rule" is simply a mathematical gadget to combine these three pieces of information and output the prediction (the chance that the particular woman with a positive mammogram has cancer). There is a very detailed explanation of this online (search Google for "yudkowsky on bayes rule"), no worse (if more technical) than the one in the book. If you'd like a less technical description, read chapter 8 of the book (but ignore the rest of it).

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Now for the *bad*. While the Baysean idea is valuable, its description would fit in a dozen of pages, and it is certainly insufficient by itself to make good predictions about the real world.
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Most Recent Customer Reviews
5.0 out of 5 stars Five Stars
Good science pop.
Published 15 hours ago by Anatoliy Mikhaylov
4.0 out of 5 stars Don't Stop Predicting
A consistently successful bettor, to use the terminology of the book, has to possess subjective probability estimates (his Bayesian priors) that capture more signal than the market... Read more
Published 2 days ago by The Ancient Simplicity
5.0 out of 5 stars Awesome book that is hard to put down.
Awesome book that is hard to put down. I have not come across an author that has made this subject matter so interesting.
Published 3 days ago by Michael D Faulkner
4.0 out of 5 stars Four Stars
Good book, with a lot of interesting examples and views.
Published 4 days ago by Ole Ostergaard Lauritsen
5.0 out of 5 stars Great book
This book is well written, engaging and full of interesting stories that support the theme of the book. I definitely recommend it.
Published 5 days ago by Jerry
5.0 out of 5 stars Good formula on predictability of events
Chapter 8 is off the chain. Good formula on predictability of events... has proven EXTREMELY helpful. A lady on the train was reading this book and told me about it. Read more
Published 7 days ago by Anthony D. Kirkedhall
5.0 out of 5 stars An excellent explanation and portrayal of modern prediction methods
An excellent explanation and portrayal of modern prediction methods. The examples were well chosen and explained. Easy to read book.
Published 7 days ago by Dr. G. P. King
3.0 out of 5 stars Three Stars
can't wait to read,
Published 11 days ago by jmg
4.0 out of 5 stars good book
It nicely ties together various subjects with numbers giving references wherever required - appreciable amount of work put into it.
Published 17 days ago by Ashwin Kesireddy
4.0 out of 5 stars Highly interesting tome!
Loved the coverage of various subject areas. Hard to comprehend if over-reliance on Bayesian thinking is a "hedgehog" style of thinking.
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Published 21 days ago by Sanjoy Datta
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More About the Author

Nate Silver is a statistician, writer, and founder of The New York Times political blog FiveThirtyEight.com. Silver also developed PECOTA, a system for forecasting baseball performance that was bought by Baseball Prospectus. He was named one of the world's 100 Most Influential People by Time magazine. He lives in New York.

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