Randomization techniques in privacy studies

Randomization is one of the most popular techniques that implemented in data mining. Randomization technique prevents selection bias and insures against accidental bias. With produces comparable groups, the technique eliminates the source of bias in any assignments. Finally, in randomization technique, it permits the use of probability theory to express the likelihood of chance as a source for the difference between outcomes. In this paper four common randomization methods are highlighted that are niche with the privacy issues.