Text categorization 2 Ant-Miner algorithm 1 Approximation algorithms 1 Attribute selection 1 C4.5 algorithm 1 Classification 1 Computer networks 1 Data sets 1 Decision making 1 Learning systems 1 Machine learning 1 Machine-learning 1 Miners 1 Optimization 1 Predictive accuracy 1 Rough sets 1 Text processing 1 Time complexity 1 Uncertainty 1 Variable precision reduction 1 Web Mining 1 Web mining 1 compacted decision table 1 decision table 1 positive region reduction 1 weighted decision table 1