Decision making Students 2 Algorithm of fuzzy 1 Behavior characteristic 1 Behavioral research 1 Center of gravity 1 Combination models 1 Combined modeling 1 Data mining 1 Data mining technology 1 Forecasting 1 Fuzzy sets 1 Gravity centers 1 Improved * algorithm 1 Information management 1 K-means clustering 1 Modeling analyzes 1 Modeling performance 1 Modern science 1 Modern technologies 1 Performance prediction 1 Prediction-based 1 Science and Technology 1 Sports 1 Student performance 1 Students' behaviors 1 Teachers' 1 Track and fields 1 Track systems 1