Pragmatic Programming Techniques

In a classical model of recommendation system, there are "users" and "items". User has associated metadata (or content...

Deploying a large scale system nowadays is quite different from before when data center is the only choice. A traditional deployment exerci...

Online electronic fraud has become increasingly problematic to many companies offering services on the web. Here I am trying to generalize ...

Unsupervised machine learning has broad application in many e-commerce sites and one common usage is to find clusters of consumers with comm...

ROC Curve is a common method to compare performance between different models. It can also be used to pick trade-off decisions between ...

I attended the San Francisco Predictive Analytic conference this week and got a chance to chat with some best data mining practitioners of t...

As more and more data being collected everywhere from pretty much everything a user do, such as transactions activities, social interactions...