A science to sift through huge data-set and make out useful interpretations, means Data Mining to me. It is a very interesting way to find out “behavior” from data. During my graduation, I could never appreciate usefulness of data analysis for non-technical purposes aka business decision making.
But, probably maturity is dawning upon me 😉 It is such an exciting field that employs statistics, computer science and businesses. Tools including decision trees, rule based classifier are based on fundamentals of Information theory (Entropy, Information gain, Euclid distances) and could be implemented with ease on huge data-sets with emerging technologies like Hadoop.
My introduction to mining like methodology my professional work was based on Application performance profilers. This tool could collect and save samples on active application and later these samples were analyzed to make various interpretations on application performance.
Data mining is an interesting, promising field and I am keen to delve more into it.