My primary interest is in Data Mining. Secondary interests are Intrusion Detection and Energy Efficient Buildings.

I have done projects in data mining approaches for intrusion detection. I have also done research in data analysis on energy consumption patterns in smart-buildings.

I will be applying for graduate school (MS) shortly. Now, how do I proceed writing my statement? Should I lay more emphasis on Data Mining? Which professors should I mention I want to work with? Ones doing data mining research, or the ones doing network security/sustainable energy research?

I understand that chances of me finding advisers that share interest in both data mining and (intrusion detection/sustainable energy) is very less. So which advisers should I target?