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				           		Skowron s differential matrix theory makes the reduce processes of rough set more simple.
						        										 	
						        					            	 对原算法的误差矩阵的计算进行了改进,提出了一种简单的误差控制方法。
								    				            	 youdao 
- 
				           		Skowron s differential matrix theory makes the reduce processes of rough set more simple.
						        										 	
						        					            	 对原算法的误差矩阵的计算进行了改进,提出了一种简单的误差控制方法。
								    				            	 youdao