A Novel Approach of Rough Conditional Entropy-Based Attribute Selection for Incomplete Decision System

Table 1

An example of incomplete decision system.

Car	Price	Mileage	Size	Max-speed	Decision
1	High	High	Full	Low	Good
2	Low	*	Full	Low	Good
3	*	*	Compact	High	Poor
4	High	*	Full	High	Good
5	*	*	Full	High	Excellent
6	Low	High	Full	*	Good