International Journal of Advance Research in Science and Engineering (IJARSE)
Data mining and knowledge discovery in databases are two new research areas that investigate the automatic extraction of previously unknown patterns from large amounts of data. Extracting useful information hidden in large collection of data is known as data mining. Discrimination is a very important issue when considering the legal and ethical aspects of data mining. Discrimination means unfairly treating people on the basis of their cast, religion, gender etc. Discrimination can be either direct or indirect to solve this problem there are some algorithms presented by various authors worldwide. This paper is to understand the existing prevention technique.