Pragmatic Programming Techniques

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...

This is a continuation of my previous blog in recommendation systems , which describes some basic algorithm for building recommendation syst...

"Cold Start" is a common problem happens quite frequent in recommendation system.  When a new item enters, there is no prior histo...

"Data science" and "Big data" has become a very hot term in last 2 years.  Since the data storage price dropped signific...

OLAP (Online Analytical Processing) is a very common way to analyze raw transaction data by aggregating along different combinations of dime...

This is the second part of my text processing series.  In this blog, we'll look into how text documents can be stored in a form that can...