Image Similarity Search Wanted
13 Feb 2012 9:44pm GMT I’ve been working on a few projects in my spare time and one service, in particular, would greatly benefit from a high quality image similarity search. I’ve been trying a number of the Open (and non-Open) Source tools (a great list of which is on Wikipedia here). Thus far none of the tools that I’ve [...]
JavaScript as a First Language
21 Dec 2011 7:04pm GMT At Khan Academy we've been investigating teaching Computer Science to students in some new and interesting ways. The most interesting aspect of which is that we're likely going to be teaching them JavaScript as their first language. We're in a very unique position as we're primarily aiming to teach students who've been through our previous [...]
Khan Exercise Rewrite
28 Jul 2011 7:33pm GMT Today we're pushing live a complete rewrite of the Khan Academy Exercise framework (live demo). A big push at Khan Academy has been to write more-and-more exercises for students to practice with. Naturally, to increase the number of exercises that we have, we needed to make it easier for team members, and casual committers, to [...]
Random Khan Exercises
19 Jul 2011 7:06pm GMT We're taking an innovative new approach to providing students with exercises in the new Khan Academy exercise framework (which will be released for beta testing soon). In the old framework a problem would be randomly generated and provided to the user. This would result in a near-infinite number of randomly generated problems. This ends up [...]
jQuery 1.6 and .attr()
13 May 2011 2:04pm GMT jQuery 1.6 and 1.6.1 are out the door. Congrats to the team and everyone that was involved with the release! A relatively controversial change in 1.6 was regarding how attributes and DOM object properties were handled. In 1.6 we wanted to take the major step of completely separating the two, allowing us to create an [...]