In a not-so-distant dystopia, you might be placed in a brain scanner to test whether you’re telling the truth. Here’s how to cheat. The polygraph First, you’ll need some background on old-school lie-detection technology. [This is a simplified story – see polygraphs for a richer account.] Polygraphs are seismographs for the nervous system. They measure […]
[With help from David Weiss] I spent much of my PhD working on algorithms for making sense of gigabytes of brain data from fMRI scanners, especially on a fairly new approach called Multi-variate Pattern Analysis (MVPA). I want to show you how the MVPA approach is useful for tackling certain kinds of questions. Think of […]
All blog posts Data science Sanity checks as data sidekicks. Organizing knowledge A long time ago, I wrote my own note-taking software. This got me thinking a lot about how we organize knowledge on computers. We want to tag things, and for those tags to have their own hierarchy. (also) Wouldn’t it be great if our […]
Greg Detre 