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Archive for 'Ideas'

Rules of thumb to predict how long you will live

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Figure out how long you will live with these rules of thumb.

What makes a good academic conference?

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What makes a good academic conference? Here’s what we like.

Baseball: Probability of winning conditional on runs, hits, walks and errors

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If a team scores X runs, what’s the probability it will win the game?

How to make a Romeo and Juliet sandwich

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The question often arises: What is the best decision science food? It’s the Romeo and Juliet sandwich, an adaptation of the popular Brazilian desert “Romeu e Julieta”.

It’s the effect size

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Enter the concept of effect size. Effect size gives one a way to think about how large an effect (e.g. a height difference) is, not just the probability of the data given the null hypothesis.

Student data science presentations on Citibikes and Stop and Frisk

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This summer, researchers at Microsoft Research NYC launched the Data Science Summer School outreach program (DS3 for short), an 8 week hands-on course to impart skills and increase diversity in computer science.

A better way to teach? Professors take note.

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With technology, old ways of doing things give way to simply better alternatives. We no longer need to pick up a phone to buy a plane ticket or hail a cab. We no longer need to carry cash around to pay for most things. Soon, students may not need to listen to traditional lectures to learn science and math because technology can make most STEM lessons participatory. But will the new model of instruction be as effective as traditional lecturing? In what its authors call “the largest and most comprehensive meta-analysis of undergraduate STEM education published to date”, the answer seems to be yes.

Changing the riskiness of bets to make hot hands happen

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A new paper by Juemin Xu and Nigel Harvey called “Carry on winning: The gamblers’ fallacy creates hot hand effects in online gambling” is fascinating.

If you make hiring or admissions decisions, read this

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When hiring or making admissions decisions, impressions of a person from an interview are close to worthless. Hire on the most objective data you have.

Beware the CRJ

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There is a kind of plane known as a Canadair Regional Jet.

CRJ for short.