Pragmatic Programming Techniques

"Lambda Architecture" (introduced by Nathan Marz) has gained a lot of traction recently.  Fundamentally, it is a set of design pat...

As a data scientist / consultant, in many cases we are being called in to work with domain experts who has in-depth business knowledge of in...

Recently, "interactive report" is becoming a hot topic in data visualization.  I believe it is becoming the next generation UI par...

In this post, I want to summarize a common pattern that I have used in my previous text mining projects. Text mining is different in that ...

We want to estimate some "statistics" (e.g. average income, 95 percentile height, variance of weight ... etc.) from a population. ...

While Hadoop fits well in most batch processing workload, and is the primary choice of big data processing today, it is not optimized for ot...

Optimization is a very common technique in computer science and machine learning to search for the best (or good enough) solution.  Optimiza...