[IEEE 2016 5th International Conference on Reliability, Infocom Technologies and Optimization (Trends and Future Directions) (ICRITO) - Noida, India (2016.9.7-2016.9.9)] 2016 5th International Conference on Reliability, Infocom Technologies and Optimization (Trends and Future Directions) (ICRITO) - Web usage mining and text mining in the environment of web personalization for ontology development of recommender systems