PRIVACY PRESERVATION OF SENSITIVE DATA IN BIG DATA ANALYTICS - A SURVEY

The world of data analytics has changed forever because to the advent of big data. Data that was deemed useless just a few years ago is now seen as a valuable resource. In today's world, big data is being used widely for the discovery of new information in virtually every industry. And one of these sectors is the communication industry. Because of the development of modern technologies, data gathering has been easier, but this also brings with it a serious risk: the risk of compromising people's privacy. Individual private data must be protected from prying eyes thanks to privacy preservation. Comparative study has been done on many research methodologies such as privacy preservation mechanisms, k-anonimity, 1-diversity, t-closeness and various cryptographic algorithms has been analyzed and their performance measures on security issues has been surveyed.