International Journal of Computer Science & Engineering Technology (IJCSET)
Large amounts of data have been collected routinely in the course of day-to-day management in business, administration, banking, the delivery of social and health services, environmental protection, security and in politics. Such data is primarily used for accounting and for management of the customer base. Manufacturers selling product on the internet often ask their customers to review their product. Such reviews provide information about these products. They are used by potential customers to find opinions of existing users before deciding to purchase that product.