Data mining, Issue and Challenges and Classification of algorithms
Data mining is a process which finds useful patterns from large amount of data by collection of data into information. The concept of data mining is centre of appeal for the users because of many factors as high availability of data which needs to be converted from masses of data to useful information. The list of sources that generate these data is endless. Businesses worldwide generate gigantic sets of data everyday that may include stock, transactions and many more of similar kinds. So there comes the need of powerful and most importantly automatic tools for uncovering valuable slots of organized information from tremendous amount of data. Considering any social networking site or a search engine, they receive millions of queries every day. Firstly, the Database Management Systems evolved to handle the queries of similar types. Then the approach was modified to advanced Database management system, Data Warehousing and Data mining for advance data analysis and web based databases.