Probabilistic Approximation under Incomplete Information Systems
Yucai Feng, Wenhai Li, Zehua Lv, Xiaoming Ma · 2007
By applying the probability estimation of the unavailable attributes derived from the available attributes to the neighborhood system, the suited degree of each neighbor to a given object is depicted. Therefore, the neighborhood space with guaranteed suited precision is obtained. We show how to shrink the rule search space via VPRS model for this space, and also, we will prove the incredibility degree of decision class is guaranteed by the two-layer thresholds.