983 resultados para Complete Characteristic Operator-Function
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* Work is partially supported by the Lithuanian State Science and Studies Foundation.
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* Work is partially supported by the Lithuanian State Science and Studies Foundation.
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2000 Mathematics Subject Classification: 35J05, 35C15, 44P05
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2000 Mathematics Subject Classification: 26A33, 33C45
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2000 Mathematics Subject Classification: 34K99, 44A15, 44A35, 42A75, 42A63
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2000 Mathematics Subject Classification: 42B20, 42B25, 42B35
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2000 Mathematics Subject Classification: Primary 30C45, 26A33; Secondary 33C15
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Mathematics Subject Classification: 33D60, 33D90, 26A33
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MSC 2010: 30C45, 30A20, 34A40
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MSC 2010: 30C45, 30A20, 34C40
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2000 Mathematics Subject Classification: Primary 47A48, Secondary 60G12
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2000 Mathematics Subject Classification: Primary 47A48, Secondary 60G12.
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2010 Mathematics Subject Classification: 35G35, 32A30, 30G35.
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A rough set approach for attribute reduction is an important research subject in data mining and machine learning. However, most attribute reduction methods are performed on a complete decision system table. In this paper, we propose methods for attribute reduction in static incomplete decision systems and dynamic incomplete decision systems with dynamically-increasing and decreasing conditional attributes. Our methods use generalized discernibility matrix and function in tolerance-based rough sets.
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2000 Mathematics Subject Classification: 47A65, 45S78.