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Torture talk: An uncontrolled experiment is still an experiment.

Paul Alper points us to this horrifying op-ed by M. Gregg Bloche about scientific study of data from U.S. military torture programs. I’ll leave the torture stuff to the experts or this guy who you’ve probably heard of. Instead, I have a technical point to make. Show More Summary

Does declawing cause harm?

Alex Chernavsky writes: I discovered your blog through a mutual friend – the late Seth Roberts. I’m not a statistician. I’m a cat-loving IT guy who works for an animal shelter in Upstate New York. I have a dataset that consists of 17-years’-worth of animal admissions data. Show More Summary

What is a photon?

Introduction Popular science writing about quantum mechanics leaves many people full of questions about the status of photons. I want to answer some of these without using any tricky mathematics. One of the challenges is that photons are very different to ordinary everyday objects like billiard balls. Show More Summary

On the darknet, drug buyers aren't looking for bargains

(Ohio State University) When drug users go online for the first time to buy opioids, they aren't looking for the widest selection or the best prices for their illicit purchases, a new study suggests. Researchers found that first-time...Show More Summary

Magnitude Homology in Sapporo

Magnitude homology of metric spaces: the short version.

Stan Weekly Roundup, 11 August 2017

This week, more Stan! Charles Margossian is rock star of the week, finishing off the algebraic solver math library fixture and getting all plumbed through Stan and documented. Now you can solve nonlinear sets of equations and get derivatives with the implicit function theory all as part of defining your log density. Show More Summary

Consider seniority of authors when criticizing published work?

Carol Nickerson writes: I’ve written my fair share of letters to the editor and commentaries over the years, most of them languishing in the file drawer. It used to be impossible to get them published. The situation has improved a bit, but not enough. Show More Summary

A Graphical Calculus for Proarrow Equipments

David Myers has been thinking about string diagrams for calculating with proarrow equipments. Check out the pictures!

Bigshot statistician keeps publishing papers with errors; is there anything we can do to get him to stop???

OK, here’s a paper with a true theorem but then some false corollaries. First the theorem: The above is actually ok. It’s all true. But then a few pages later comes the false statement: This is just wrong, for two reasons. First, the...Show More Summary

Mapping the brain, neuron by neuron

(Johns Hopkins University) A mathematician and computer scientist joined an international team of neuroscientists to create a complete map of the learning and memory center of the fruit fly larva brain, an early step toward mapping how all animal brains work.

I love when I get these emails!

On Jan 27, 2017, at 12:24 PM, wrote: Hi Andrew, I hope you are well. I work for and we are looking to chat to someone who knows about Freud – I read that you used to be an expert in Freud? Is that correct? Background here. The post I love when I get these emails! appeared first on Statistical Modeling, Causal Inference, and Social Science.

The structure of logarithmically averaged correlations of multiplicative functions, with applications to the Chowla and Elliott conjectures

Joni Teräväinen and I have just uploaded to the arXiv our paper “The structure of logarithmically averaged correlations of multiplicative functions, with applications to the Chowla and Elliott conjectures“, submitted to Duke Mathematical Journal. Show More Summary

What explains my lack of openness toward this research claim? Maybe my cortex is just too damn thick and wrinkled

Diana Senechal writes: Yesterday Cari Romm reported that researchers had found a relation between personality traits and cortex shape: “People who scored higher on openness tended to have thinner and smoother cortices, while those who...Show More Summary

The Supreme Court can’t do statistics. And, what’s worse, they don’t know what they don’t know.

Kevin Lewis points us to this article by Ryan Enos, Anthony Fowler, and Christopher Havasy, who write: This article examines the negative effect fallacy, a flawed statistical argument first utilized by the Warren Court in Elkins v. United States. Show More Summary

UTA researcher seeks to minimize risks for unmanned aerial systems over populated areas

(University of Texas at Arlington) Atilla Dogan, an associate professor of aerospace engineering at The University of Texas at Arlington, will use a $550,000 National Science Foundation grant to quantify risks posed by unmanned aerial vehicles, then create algorithms to reduce those risks while the vehicles perform specific tasks.

Distributed wind power keeps spinning, growing

(DOE/Pacific Northwest National Laboratory) America's use of distributed wind -- which is wind power generated near where it will be used -- continues to grow, according to the 2016 Distributed Wind Market Report.

Irwin Shaw, John Updike, and Donald Trump

So. I read more by and about Irwin Shaw. I read Shaw’s end-of-career collection of short stories and his most successful novel, The Young Lions, and also the excellent biography by Michael Shnayerson. I also read Adam Begley’s recent...Show More Summary

When you're blue, so are your Instagram photos

(University of Vermont) A new study shows that Instagram photos can be examined by a computer to successfully detect depressed people. The computer results are more reliable (70 percent) than the diagnostic success rate (42 percent) of general-practice doctors. The approach promises a new method for early screening of mental health problems through social media.

What readings should be included in a seminar on the philosophy of statistics, the replication crisis, causation, etc.?

André Ariew writes: I’m a philosopher of science at the University of Missouri. I’m interested in leading a seminar on a variety of current topics with philosophical value, including problems with significance tests, the replication crisis, causation, correlation, randomized trials, etc. Show More Summary

Wolfram on Golomb

I was checking out Stephen Wolfram’s blog and found this excellent obituary of Solomon Golomb, the mathematician who invented the maximum-length linear-feedback shift register sequence, characterized by Wolfram as “probably the single most-used mathematical algorithm idea in history.” But Golomb is probably more famous for inventing polyominoes. Show More Summary

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