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digs
Permanent link - Posted 9 days ago (via flowingdata.com)
Genetic algorithms are inspired by natural selection, where the system is given a…Tags: algorithm, floor plan...
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digs
Permanent link - Posted 9 days ago (via andrewgelman.com)
Here’s why I don’t like the term “multi-armed bandit” to describe the exploration-exploitation tradeoff of inference and decision analysis. First, and less importantly, each slot machine (or “bandit”) only has one arm. Hence it’s many one-armed bandits, not one multi-armed bandit. Second, the basic strategy in these problems is to play on lots of machines ...
1
digs
Permanent link - Posted 9 days ago (via andrewgelman.com)
Jackson Monroe writes: I thought you might be interested in an article [by Dan McLaughlin] in NRO that discusses the replication crisis as part of a broadside against all public health research and social science. It seemed as though the author might be twisting the nature of the replication crisis toward his partisan ends, but […] The post The replication crisis and the political process ap...
1
digs
Permanent link - Posted 9 days ago (via andrewgelman.com)
Introduction Zacco asked in Stan discourse whether leave-one-out (LOO) cross-validation is valid for phylogenetic models. He also referred to Dan’s excellent blog post which mentioned iid assumption. Instead of iid it would be better to talk about exchangeability assumption, but I (Aki) got a bit lost in my discourse answer (so don’t bother to go […] The post When LOO and other c...
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digs
Permanent link - Posted 9 days ago (via andrewgelman.com)
Someone pointed me to this post from a few years ago where Rafael Irizarry argues that scientific “pessimists” such as myself are, at least in some fields, “missing a critical point: that in practice, there is an inverse relationship between increasing rates of true discoveries and decreasing rates of false discoveries and that true discoveries […] The post Response to Rafa...
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digs
Permanent link - Posted 12 days ago (via flowingdata.com)
Apple’s value passed $1 trillion on Thursday, and as tradition requires, we must…Tags: Apple, business, New York Times, stocks...
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digs
Permanent link - Posted 12 days ago (via flowingdata.com)
NPR used video from a thermographic camera to explain why cities tend to…Tags: city, heat, NPR...
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digs
Permanent link - Posted 13 days ago (via blog.computationalcomplexity.org)
There are three questions I ask in my Formal Lang Theory class that even the very best students get wrong. Two I knew were trick quesions, the other I was surprised by 1) If w is a string then SUBSEQ(w) is all strings you can form by replacing some symbols in w with empty string. SUBSEQ(L) is defined in the obv way. I ask the following in class (not on an exam). TRUE or FALSE and WHY and we'll dis...
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digs
Permanent link - Posted 13 days ago (via junkcharts.typepad.com)
Kaiser Fung (Numbersense; Principal Analytics Prep) uses data science to help baseball fans decide when it is "safe" to leave the baseball stadium when the games are taking too long....
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digs
Permanent link - Posted 13 days ago (via flowingdata.com)
Welcome to the new members-only newsletter: The Process. In this first update, a certain data graphics expert seems to really dislike R, which prompts a look into the visualization tools we use and what one might get out of a bigger toolbox.Tags: Edward Tufte, R, tools...
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