| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 395679 | Information Sciences | 2011 | 6 Pages |
Abstract
In this paper, we study the axiomatic issue of a type of covering upper approximation operations. This issue was proposed as an open problem. We also further some known results by using only a single covering approximation operator to characterize the conditions for neighborhood {N(x): x ∈ U} to form a partition of universe U.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Ziqiu Yun, Xun Ge, Xiaole Bai,