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Numenta demonstrates machine intelligence algorithm for real-time anomaly detection

(Krause Taylor Associates) Researchers at Numenta have introduced two contributions to the field of anomaly detection for streaming applications. The first is a novel unsupervised anomaly detection technique based on a theory of how the brain works. Show More Summary

The Geometric McKay Correspondence (Part 1)

The icosahedron and E8 are connected, with the E8 Dynkin diagram arising from a detailed study of how an icosahedron can shrink to zero size.

Off to TheoryFest 2017

I'm at the airport getting ready to board my flight for Montreal to attend TheoryFest 2017. And much to my amazement, I discover that STOC has its own event mobile app. Who knows, maybe this means that by next decade theory conferences...Show More Summary

Breaking the dataset into little pieces and putting it back together again

Alex Konkel writes: I was a little surprised that your blog post with the three smaller studies versus one larger study question received so many comments, and also that so many people seemed to come down on the side of three smaller studies. Show More Summary

Don’t say “improper prior.” Say “non-generative model.”

[cat picture] In Bayesian Data Analysis, we write, “In general, we call a prior density p(?) proper if it does not depend on data and integrates to 1.” This was a step forward from the usual understanding which is that a prior density is improper if an infinite integral. Show More Summary

Where’d the $2500 come from?

Brad Buchsbaum writes: Sometimes I read the New York Times “Well” articles on science and health. It’s a mixed bag, sometimes it’s quite good and sometimes not. I came across this yesterday: What’s the Value of Exercise? $2,500 For people...Show More Summary

Stan Weekly Roundup, 16 June 2017

We’re going to be providing weekly updates for what’s going on behind the scenes with Stan. Of course, it’s not really behind the scenes, because the relevant discussions are at stan-dev GitHub organization: this is the home of all of...Show More Summary

Mathematicians deliver formal proof of Kepler Conjecture

(Cambridge University Press) A mathematical problem more than 300 years old gets a formal proof with the help of computer formal verification.

SPEED: Parallelizing Stan using the Message Passing Interface (MPI)

Sebastian Weber writes: Bayesian inference has to overcome tough computational challenges and thanks to Stan we now have a scalable MCMC sampler available. For a Stan model running NUTS, the computational cost is dominated by gradient calculations of the model log-density as a function of the parameters. Show More Summary

New light shed on dynamics of type IV pili and twitching motility

(Gakushuin University) New light shed on dynamics of asymmetric type IV pili distribution and twitching motility triggered by directional light in cyanobacteria.

Russian researchers developed a reliable forward error correction method for digital data

(Peter the Great Saint-Petersburg Polytechnic University) Scientists of Peter the Great Saint-Petersburg Polytechnic University proposed a new channel coding method for the fifth generation of wireless systems (5G). Researchers generalized the construction of polar codes proposed by Turkish scientist Erdal Arikan and obtained polar subcodes.

Ride a Crooked Mile

Joachim Krueger writes: As many of us rely (in part) on p values when trying to make sense of the data, I am sending a link to a paper Patrick Heck and I published in Frontiers in Psychology. The goal of this work is not to fan the flames...Show More Summary

Kaiser Fung’s data analysis bootcamp

Kaiser Fung announces a new educational venture he’s created, a bootcamp (12-week full-time in-person program with a curriculum) of short courses with a goal of getting people their first job in an analytics role for a business unitShow More Summary

Statistical Challenges of Survey Sampling and Big Data (my remote talk in Bologna this Thurs, 15 June, 4:15pm)

Statistical Challenges of Survey Sampling and Big Data Andrew Gelman, Department of Statistics and Department of Political Science, Columbia University, New York Big Data need Big Model. Big Data are typically convenience samples, not...Show More Summary

For World Tessellation Day, Remember to Look Down

June 17 is World Tessellation Day. Take a moment to look at the beautiful patterns under your feet -- Read more on

Criminology corner: Type M error might explain Weisburd’s Paradox

[silly cartoon found by googling cat burglar] Torbjørn Skardhamar, Mikko Aaltonen, and I wrote this article to appear in the Journal of Quantitative Criminology: Simple calculations seem to show that larger studies should have higher...Show More Summary

Eliminating Binders for Easier Operational Semantics

Bound variables cause a lot of complications. In this post Mike Stay explains how to simply avoid them.

PhD student fellowship opportunity in Belgium to work with us on the multiverse and other projects on improving the reproducibility of psychological research

[image of Jip and Janneke dancing with a cat] Wolf Vanpaemel and Francis Tuerlinckx write: We at the Quantitative Psychology and Individual Differences, KU Leuven, Belgium are looking for a PhD candidate. The goal of the PhD research is to develop and apply novel methodologies to increase the reproducibility of psychological science. Show More Summary

Why I’m not participating in the Transparent Psi Project

I received the following email from psychology researcher Zoltan Kekecs: I would like to ask you to participate in the establishment of the expert consensus design of a large scale fully transparent replication of Bem’s (2011) ‘Feeling the future’ Experiment 1. Show More Summary

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