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Blind Alley

Paul Alper points in a comment to an excellent news article by James Glanz and Agustin Armendariz: Dr. Carlo Croce is among the most prolific scientists in an emerging area of cancer research... a member of the National Academy of Sciences, Dr. Show More Summary

UTA researchers to develop new math theory for improvement of imaging technology

(University of Texas at Arlington) Researchers at the University of Texas at Arlington are working on a project which could have a sizable impact on imaging technologies, by developing new mathematical theories that can help solve outstanding problems. Show More Summary

RIT alumnus wins national award for undergraduate physics research

(Rochester Institute of Technology) A graduate of Rochester Institute of Technology's College of Science has been recognized by the American Association of Physics Teachers and the-Advanced Laboratory Physics Association for his contributions as an undergraduate student researcher to RIT's School of Physics and Astronomy.

Science communication is not a one-shot game

In our recent discussion of Ted doubling down on power pose, commenter Michael raised an interesting question: I think the general attitude of most people who work on communicating science to the public is that their responsibility is...Show More Summary

Functional Equations V: Expected Surprise

A family of q-deformations of Shannon entropy, interpreted as expected surprise. Plus, a simple characterization theorem for these "surprise entropies", and another for relative surprise entropy.

A fistful of Stan case studies: divergences and bias, identifying mixtures, and weakly informative priors

Following on from his talk at StanCon, Michael Betancourt just wrote three Stan case studies, all of which are must reads: Diagnosing Biased Inference with Divergences: This case study discusses the subtleties of accurate Markov chain Monte Carlo estimation and how divergences can be used to identify biased estimation in practice. Show More Summary

New study finds price discounts may backfire when combined with large donations

(Institute for Operations Research and the Management Sciences) Providing consumers the opportunity to feel altruistic by donating a portion of the purchase price to a charity is an effective way for businesses to drive sales, as is providing items and services at discounted prices. Show More Summary

Designing the fuel-efficient aircraft of the future

(University of Texas at Austin, Texas Advanced Computing Center) University of Michigan researchers are using the Stampede supercomputer to design novel, fuel-efficient, wing designs for jets, and to develop tools that can help the industry build more efficient aircraft. Show More Summary

How to do a descriptive analysis using regression modeling?

Freddy Garcia writes: I read your post Vine regression?, and your phrase “I love descriptive data analysis!” make me wonder: How to do a descriptive analysis using regression models? Maybe my question could be misleading to an statistician, but I am a economics student. Show More Summary

Algebra Valued Functors in General and Tensor Products in Particular

A summary of Peter Freyd's article of the same title written for the Kan Extension Seminar.

Religious participation may serve to strengthen social bonds

(Santa Fe Institute) By analyzing how peoples' religious practice correlates with their social support networks in two villages in South India, Eleanor Power of the Santa Fe Institute proposes an evolutionary benefit to religious participation.

Hey! Can you guess the 3 goofy tricks that this new journal is trying to improve peer review?

Rob Bloomfield writes: I [Bloomfield] am a new editor of a new Journal of Financial Reporting, and we’re trying to make some changes to peer review in our field.  I’d be very interested to hear your and your readers’ thoughts on whether...Show More Summary

Very different cities have similar potential for ride sharing

(Massachusetts Institute of Technology) A newly published study co-authored by MIT researchers suggests that urban ride-sharing is feasible in a wide variety of cities around the globe -- and indeed that the potential 'shareability' of autos in those places is more similar, from place to place, than previously expected.

Underwater mountains help ocean water rise from abyss

(Massachusetts Institute of Technology) scientists from MIT, Woods Hole Oceanographic Institution, and the University of Southampton in the UK have identified a mechanism by which waters may rise from the ocean's depths to its uppermost layers. Their results are published today in the journal Nature Communications.

Advice when debugging at 11pm

Add one feature to your model and test and debug with fake data before going on. Don’t try to add two features at once. The post Advice when debugging at 11pm appeared first on Statistical Modeling, Causal Inference, and Social Scie...

Furstenberg limits of the Liouville function

Given a function on the natural numbers taking values in, one can invoke the Furstenberg correspondence principle to locate a measure preserving system – a probability space together with a measure-preserving shift (or equivalently, a measure-preserving -action on ) – together with a measurable function (or “observable”) that has essentially the same statistics as […]


Sandro Ambuehl writes: As an avid reader of your blog, I thought you might like (to hate) the attached PNAS paper with the following findings: (i) sending two flyers about the importance of STEM fields to the parents of 81 kids improves...Show More Summary

How to interpret confidence intervals?

Jason Yamada-Hanff writes: I’m a Neuroscience PhD reforming my statistics education. I am a little confused about how you treat confidence intervals in the book and was hoping you could clear things up for me. Through your blog, I found Richard Morey’s paper (and further readings) about confidence interval interpretations. Show More Summary

Yes, it makes sense to do design analysis (“power calculations”) after the data have been collected

This one has come up before but it’s worth a reminder. Stephen Senn is a thoughtful statistician and I generally agree with his advice but I think he was kinda wrong on this one. Wrong in an interesting way. Senn’s article is from 2002...Show More Summary

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