I was reading reading about convolution matrix which was brillianty explained by Colah. If you're looking for good blog to follow, you might want to add him into the list. One of the application of…

I've been toying with OpenCV lately and surprisingly it is pretty easy to implement face-tracking using OpenCV. However, OpenCV documentation is a bit lacking especially with its Python binding. Installing OpenCV In OSX (yes, I've…

Haven't post anything for the past couple of months. I just started moving all the contents to Ghost blogging platform. Previously, I was hosting my blog on Github pages, which means I have to use…

While trying to implement Solr indexer, I came across problem on how to actually normalize the date format according to Solr format. Surprisingly, this question was asked quite often in Stackoverflow. So, I decided to…

I was playing around with AngularJs recently and decided to integrate it with Rails. The goal is to have total separation between front-end and back-end. Back-end will act as a RESTful service that spits JSON.…

Recently, I get a chance working with Pagodabox while helping a friend with a client project. If you do not know about Pagodabox, you can go to their website to checkout. In short it is…

This time around, I had a little project with a friend which involved cryptography. So we decided to implement an AES-256 encryption/decryption. That is way above top secret (lol). I googled around looking for…

While learning the new asynchrony feature in C# 5.0, I was experimenting the difference between the previous method of achieving asynchrony using callback against the latest feature provided by C# by utilizing the async…

I was playing around with Google Code Jam practice question and was thinking of a smarter way to solve this question. The particular challenge I'm doing is Hedgemony problem. I ended up solving it with…