Rough sets Data mining 6 Dissertations 5 Dissertations, Academic 5 Database management 2 Set theory 2 Artificial intelligence 1 Business enterprises 1 Computational intelligence 1 Computer algorithms 1 Computer network resources 1 Corporatio 1 Electronic commerce 1 Mathematics 1 Outliers (Statistics) 1 Simulated annealing (Mathematics) 1 Soccer 1 Social aspects 1 Study and teaching 1 Valuation 1