4 posts tagged with Bayesian.
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"We perceive the world through metaphors"

Why I Am No Longer A Skeptic
That's right: the nerds won, decades ago, and they're now as thoroughly established as any other part of the establishment. And while nerds a relatively new elite, they're overwhelmingly the same as the old: rich, white, male, and desperate to hang onto what they've got. And I have come to realise that skepticism, in their hands, is just another tool to secure and advance their privileged position, and beat down their inferiors. As a skeptic, I was not shoring up the revolutionary barricades: instead, I was cheering on the Tsar's cavalry.
Referenced in The Cult Of Bayes' Theorem [more inside]
posted by the man of twists and turns on Jun 16, 2013 - 205 comments

Will Redshirts by (Mefi's Own) John Scalzi have to be rewritten?

Bayesian analysis shows redshirts are not most likely to die on Star Trek:TOS. Although Enterprise crew members in redshirts suffer many more casualties than crew members in other uniforms, they suffer fewer casualties than crew members in gold uniforms when the entire population size is considered. Only 10% of the entire redshirt population was lost during the three year run of Star Trek. This is less than the 13.4% of goldshirts, but more than the 5.1% of blueshirts. What is truly hazardous is not wearing a redshirt, but being a member of the security department. The red-shirted members of security were only 20.9% of the entire crew, but there is a 61.9% chance that the next casualty is in a redshirt and 64.5% chance this red-shirted victim is a member of the security department. The remaining redshirts, operations and engineering make up the largest single population, but only have an 8.6% chance of being a casualty.
posted by Cash4Lead on Feb 20, 2013 - 75 comments

Papers and More on Data Mining

It has applications in health care, pharmaceuticals, facial recognition, economics/related areas, and of course, much much more. Previously, MeFi discussed controversial homeland security applications, and the nexus between social networking and mobile devices that further contributes to the pool. With plenty to dig into, let's talk Data Mining in more detail. [more inside]
posted by JoeXIII007 on Apr 22, 2011 - 14 comments

Dynamic Linear Modelling

It has applications in Economics, Biology, Pharmaceuticals, and is rooted in State Space Modeling, which with Kalman Filtering (paper, breakdown [warning: long]) was used in the Apollo program. Dynamic Linear Models are gaining in popularity. There exists an R package, and both a short doc and a really great (read: worth buying) book (sorry, not a download, but here's chapter 2) by Giovanni Petris, Sonia Petrone, and Patrizia Campagnoli with its own little website.
posted by JoeXIII007 on Jul 30, 2010 - 14 comments

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