International Journal Of Engineering And Computer Science
In this paper, the authors present survey on data mining using rough set theory and data mining using parallel method for rough set approximation with MapReduce technique. With the development of information technology data growing at an incredible rate, so big data mining and knowledge discovery become a new challenge. Big data is the term for a collection of data sets which are large and complex, it contain structured and unstructured both type of data. Data comes from everywhere, posts to social media sites, digital pictures and videos etc. this data is known as big data.