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So little information to evaluate effects of dietary choices

Paul Alper points to this excellent news article by Aaron Carroll, who tells us how little information is available in studies of diet and public health. Here’s Carroll: Just a few weeks ago, a study was published in the Journal of Nutrition...Show More Summary

Bailey, Borwein, Mattingly, and Wightwick to receive 2017 AMS Conant Prize

(American Mathematical Society) David Bailey, Jonathan Borwein, Andrew Mattingly, and Glenn Wightwick will receive the 2017 AMS Levi L. Conant Prize for their article 'The Computation of Previously Inaccessible Digits of ? 2 and Catalan's Constant.'

Some U.S. demographic data at zipcode level conveniently in R

Ari Lamstein writes: I chuckled when I read your recent “R Sucks” post. Some of the comments were a bit … heated … so I thought to send you an email instead. I agree with your point that some of the datasets in R are not particularly relevant. Show More Summary

Survey weighting and that 2% swing

Nate Silver agrees with me that much of that shocking 2% swing can be explained by systematic differences between sample and population: survey respondents included too many Clinton supporters, even after corrections from existing survey adjustments. Show More Summary

A friend of a friend is ... a dense network

(Santa Fe Institute) Networks evolve in different ways depending on how often "second-neighbor," or friends-of-friends, connections occur.

2016 AAAS Mentor Award honors Dr. Ami Radunskaya of Pomona College, recognizing exemplary efforts to increase the ranks of women in mathematics

(American Association for the Advancement of Science) Dr. Ami Radunskaya -- a professor of mathematics at Pomona College, president-elect of the Association for Women in Mathematics, and director of the national Enhancing Diversity in...Show More Summary

human-, computer- and fairy-chess

There was this hilarious message around move 60: “The computer has just announced that white mates in 31 moves. Of course, the only two people in the building who don’t benefit from that knowledge are behind the pieces.” The position below comes from the preface of Lewis Carroll’s Through the Looking-Glass The old notation for... Continue reading ?

Suggestions for you: A better, faster recommendation algorithm

(Santa Fe Institute) Researchers from the Santa Fe Institute and the Universitat Rovira i Virgili unveil a more accurate, efficient algorithm for Internet recommendations.

How can you evaluate a research paper?

Shea Levy writes: You ended a post from last month [i.e., Feb.] with the injunction to not take the fact of a paper’s publication or citation status as meaning anything, and instead that we should “read each paper on its own.” Unfortunately, while I can usually follow e.g. Show More Summary

NaNoWriMo (3)

“Lego: the universal toy. Enjoyed by people of all ages all over the place. The idea is simple and brilliant. Start with some basic blocks that can be joined together. Add creativity, imagination and a bit of ingenuity. Build anything. Mathematics is exactly the same. We start with some basic building blocks and ways of... Continue reading ?

Sellers 3.5 times more influential than buyers in driving e-commerce platform growth

(Institute for Operations Research and the Management Sciences) E-commerce platforms, such as Uber and eBay, face the dilemma of what is more lucrative, supporting the needs of the buyers or the sellers. The belief is it is more important to focus on buyers, who create demand, than on sellers. Show More Summary

Princeton-led team finds new method to improve predictions

(Princeton University) Researchers at Princeton, Columbia and Harvard have created a new method to analyze big data that better predicts outcomes in health care, politics and other fields.

Scientists identify unique genomic features in testicular cancer

(Dana-Farber Cancer Institute) Researchers led by scientists at Dana-Farber Cancer Institute say they have identified unique genomic changes that may be integral to testicular cancer development and explain why the great majority are highly curable with chemotherapy -- unlike most solid tumors.

An exciting new entry in the “clueless graphs from clueless rich guys” competition

Jeff Lax points to this post from Matt Novak linking to a post by Matt Taibbi that shares the above graph from newspaper columnist / rich guy Thomas Friedman. I’m not one to spend precious blog space mocking bad graphs, so I’ll refer you to Novak and Taibbi for the details. Show More Summary

John Friedlander and Henryk Iwaniec to receive 2017 AMS Doob prize

(American Mathematical Society) John Friedlander of the University of Toronto and Henryk Iwaniec of Rutgers University will receive the 2017 AMS Joseph L. Doob Prize for their book Opera de Cribro (AMS, 2010).

Interesting epi paper using Stan

Jon Zelner writes: Just thought I’d send along this paper by Justin Lessler et al. Thought it was both clever & useful and a nice ad for using Stan for epidemiological work. Basically, what this paper is about is estimating the trueShow More Summary

Vital vaccine could 'reduce burden' of dengue disease in hardest-hit regions

(University of Exeter) A team of international researchers, including Dr. Mario Recker from the University of Exeter, have looked at the impact and cost-effectiveness of the vaccine, called Dengvaxia, under a host of varying conditi...

Big data analytics -- nostradamus of the 21st century

(Griffith University) The future of election polling will be based on social media comments and data, according to a Griffith University researcher who correctly predicted Donald Trump as US President.Head of School of Information Communication...Show More Summary


For which linear operators T is T(x) always orthogonal to x? The answer depends very much on the field you're working over.

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