April 2013
1 post
turadg asked: I really like how you and other Khan Academy data scientists post your analyses. As a graduate student in HCI and learning sciences, I've been surprised that none of the analyses (that I've seen!) have any cognitive modeling. Is that true? If so, why? Thanks.
January 2013
1 post
The Science of Learning
Online education is hot field right now. That means a lot of programmers and data scientists are interested in learning about education and instruction; a lot of teachers are rethinking the potential uses of technology and analytics. What may be less apparent or accessible to the newly interested, though, is the fantastic body of research available to them through the field of learning...
March 2012
1 post
BAYES NET BY EXAMPLE USING PYTHON AND KHAN ACADEMY...
Bayesian networks (and probabilistic graphical models more generally) are cool. We computer geeks can love ‘em because we’re used to thinking of big problems modularly and using data structures. But better than being cool, they’re useful. Especially if you have the kind of problem that involves hundreds or thousands of interrelated variables, any one of which you might want to predict based on...
