1. Jayalatchumy, D., Thambidurai, P.: Web mining research issue and future directions—a survey. IOSR J. Comput. Eng. (IOSR-JCE) 14, 20–27 (2013)
2. Rathod, D.B.: Customizable web log mining from web server log. Int. J. Eng. Dev. Res. (IJEDR), 96–100 (2011)
3. Priyanka, P., Ujwala, P.: Preprocessing of web server log file for web mining. World J. Sci. Technol. 2, 14–18 (2012)
4. Ramya, C., Shreedhara, K.S., Kavitha, G.: Preprocessing: a prerequisite for discovering patterns in web usage mining process. Int. J. Inf. Electron. Eng. 3, 196–199 (2013)
5. Prince Mary, S., Baburaj, E.: An efficient approach to perform pre-processing. Indian J. Comput. Sci. Eng. (IJCSE) 4, 404–410 (2013)