3 citations · 7 across the 6 of their papers we have counts for
6 papers
Characteristic of partition-circuit matroid through approximation number
Yanfang Liu, William Zhu
Rough set theory is a useful tool to deal with uncertain, granular and incomplete knowledge in information systems. And it is based on equivalence relations or partitions. Matroid…
Relationship between the second type of covering-based rough set and matroid via closure operator
Yanfang Liu, William Zhu
Recently, in order to broad the application and theoretical areas of rough sets and matroids, some authors have combined them from many different viewpoints, such as circuits, rank…
Parametric matroid of rough set
Yanfang Liu, William Zhu
Rough set is mainly concerned with the approximations of objects through an equivalence relation on a universe. Matroid is a combinatorial generalization of linear independence in…
Relation matroid and its relationship with generalized rough set based on relation
Yanfang Liu, William Zhu
Recently, the relationship between matroids and generalized rough sets based on relations has been studied from the viewpoint of linear independence of matrices. In this paper, we…
Covering matroid
Yanfang Liu, William Zhu
In this paper, we propose a new type of matroids, namely covering matroids, and investigate the connections with the second type of covering-based rough sets and some existing spec…
Matroidal structure of rough sets based on serial and transitive relations
Yanfang Liu, William Zhu
The theory of rough sets is concerned with the lower and upper approximations of objects through a binary relation on a universe. It has been applied to machine learning, knowledge…