Viewing profile — bochi

Bandits are probably one of the most underrated machine learning algorithms. One possible application is recommendation systems. Shameless self promotion. I wrote an article about …

We are just exporting the matrices. Nothing fancy.

I did something similar in Javascript. My implementation uses the Runge-Kutta algorithm, that is more stable. My GUI does not allow planet creation, but it shows several stable con…

Riak CS is S3 compatible. I have a very similar problem and end up writing a python script that copies the files to cassandra and Nginx + Lua to serve them using lua-resty-cassandr…

This article is the best introduction to the topic in my opinion: http://steve.vinoski.net/pdf/IC-Rediscovering-Distributed-Sy... Another good reference for understanding distribut…

It would be interesting to see the same data broken down by year. Lua, Clojure, and Go are at about the same position, but I wonder which one is gaining traction. Probably Go.

This blog post is a nice survey about other interesting probabilistic data structures: http://highlyscalable.wordpress.com/2012/05/01/probabilistic...

It's hard to believe that JavaScript and Transact-SQL have more or less the same popularity (1.569% against 1.559%). That's why I don't care about this index anymore.

Barnes-Hut is O(n log n) http://en.wikipedia.org/wiki/Barnes%E2%80%93Hut_simulation

There is a nice big list here: http://cstheory.stackexchange.com/questions/1168/what-papers...

Ilya Grigorika, the presentation author, has also written a book called High Performance Browser Network that I highly recommend if you are interested on the subject. There is a fr…

With OpenCV you can also do face detection and feature recognition for smarter crops. Thumbor does that and is used in a large scale at globo.com: https://github.com/globocom/thumb…

I did that some time ago: https://github.com/jbochi/gifstreaming

I've implemented the FOV algorithm suggested on this article without ray casting in Javascript: https://s3.amazonaws.com/jbochi/layout.html It was an experiment for a game that I w…

There is on open source a Nginx module that streams RTMP and creates HLS segments that looks promising: https://github.com/arut/nginx-rtmp-module There are also red5 ( http://www.r…