Variable precision rough set model
Journal of Computer and System Sciences
Tolerance approximation spaces
Fundamenta Informaticae - Special issue: rough sets
Extensions and intentions in the rough set theory
Information Sciences: an International Journal
Constructive and algebraic methods of the theory of rough sets
Information Sciences: an International Journal
Relational interpretations of neighborhood operators and rough set approximation operators
Information Sciences—Informatics and Computer Science: An International Journal
Rough set approach to incomplete information systems
Information Sciences: an International Journal
Rules in incomplete information systems
Information Sciences: an International Journal
Neighborhood systems and relational databases
CSC '88 Proceedings of the 1988 ACM sixteenth annual conference on Computer science
Rough set theory applied to (fuzzy) ideal theory
Fuzzy Sets and Systems
Rough Sets: Theoretical Aspects of Reasoning about Data
Rough Sets: Theoretical Aspects of Reasoning about Data
A Generalized Definition of Rough Approximations Based on Similarity
IEEE Transactions on Knowledge and Data Engineering
Algebraic Structures of Rough Sets
RSKD '93 Proceedings of the International Workshop on Rough Sets and Knowledge Discovery: Rough Sets, Fuzzy Sets and Knowledge Discovery
Approximate Reducts and Association Rules - Correspondence and Complexity Results
RSFDGrC '99 Proceedings of the 7th International Workshop on New Directions in Rough Sets, Data Mining, and Granular-Soft Computing
Reduction and axiomization of covering generalized rough sets
Information Sciences: an International Journal
Information-preserving hybrid data reduction based on fuzzy-rough techniques
Pattern Recognition Letters
Topological approaches to covering rough sets
Information Sciences: an International Journal
Analysis on classification performance of rough set based reducts
PRICAI'06 Proceedings of the 9th Pacific Rim international conference on Artificial intelligence
Information Sciences: an International Journal
Attribute reduction based on evidence theory in incomplete decision systems
Information Sciences: an International Journal
A systematic study on attribute reduction with rough sets based on general binary relations
Information Sciences: an International Journal
Generalized fuzzy rough approximation operators based on fuzzy coverings
International Journal of Approximate Reasoning
Communicating between information systems
Information Sciences: an International Journal
Neighborhood rough set based heterogeneous feature subset selection
Information Sciences: an International Journal
Rough approximation operators on two universes of discourse and their fuzzy extensions
Fuzzy Sets and Systems
Discernibility matrix simplification for constructing attribute reducts
Information Sciences: an International Journal
A comparison of two types of rough sets induced by coverings
International Journal of Approximate Reasoning
Approaches to knowledge reduction of covering decision systems based on information theory
Information Sciences: an International Journal
Information Sciences: an International Journal
A method of learning weighted similarity function to improve the performance of nearest neighbor
Information Sciences: an International Journal
On Covering Based Approximations of Classifications of Sets
IEA/AIE '09 Proceedings of the 22nd International Conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems: Next-Generation Applied Intelligence
Attribute selection with fuzzy decision reducts
Information Sciences: an International Journal
On axiomatic characterizations of three pairs of covering based approximation operators
Information Sciences: an International Journal
On some properties of covering based approximations of classifications of sets
Proceedings of the 2nd International Conference on Interaction Sciences: Information Technology, Culture and Human
A short note on some properties of rough groups
Computers & Mathematics with Applications
An Interval-Valued Intuitionistic Fuzzy Rough Set Model
Fundamenta Informaticae
Reduction about approximation spaces of covering generalized rough sets
International Journal of Approximate Reasoning
Fuzzy preference based rough sets
Information Sciences: an International Journal
Research on rough set theory and applications in China
Transactions on rough sets VIII
Information Sciences: an International Journal
Information Sciences: an International Journal
Extension of covering approximation space and its application in attribute reduction
RSKT'10 Proceedings of the 5th international conference on Rough set and knowledge technology
Data compression with homomorphism in covering information systems
International Journal of Approximate Reasoning
A Boolean function approach to feature selection in consistent decision information systems
Expert Systems with Applications: An International Journal
On minimization of axiom sets characterizing covering-based approximation operators
Information Sciences: an International Journal
On lower and upper intension order relations by different cover concepts
Information Sciences: an International Journal
Information Sciences: an International Journal
Rule learning for classification based on neighborhood covering reduction
Information Sciences: an International Journal
A variable precision covering generalized rough set model
RSKT'11 Proceedings of the 6th international conference on Rough sets and knowledge technology
Transversal and function matroidal structures of covering-based rough sets
RSKT'11 Proceedings of the 6th international conference on Rough sets and knowledge technology
Driver status recognition by neighborhood covering rules
RSKT'11 Proceedings of the 6th international conference on Rough sets and knowledge technology
Bipartite graphs and coverings
RSKT'11 Proceedings of the 6th international conference on Rough sets and knowledge technology
The reduction and fusion of fuzzy covering systems based on the evidence theory
International Journal of Approximate Reasoning
Information Sciences: an International Journal
A covering-based pessimistic multigranulation rough set
ICIC'11 Proceedings of the 7th international conference on Intelligent Computing: bio-inspired computing and applications
Generalized intuitionistic fuzzy rough sets based on intuitionistic fuzzy coverings
Information Sciences: an International Journal
Covering based rough set approximations
Information Sciences: an International Journal
Extended rough set-based attribute reduction in inconsistent incomplete decision systems
Information Sciences: an International Journal
Topological characterizations of covering for special covering-based upper approximation operators
Information Sciences: an International Journal
Test-cost-sensitive attribute reduction
Information Sciences: an International Journal
NMGRS: Neighborhood-based multigranulation rough sets
International Journal of Approximate Reasoning
Communication between information systems with covering based rough sets
Information Sciences: an International Journal
An Interval-Valued Intuitionistic Fuzzy Rough Set Model
Fundamenta Informaticae
Attribute Reduction Using Extension of Covering Approximation Space
Fundamenta Informaticae - Rough Sets and Knowledge Technology (RSKT 2010)
Matroidal structure of rough sets and its characterization to attribute reduction
Knowledge-Based Systems
Quantitative analysis for covering-based rough sets through the upper approximation number
Information Sciences: an International Journal
Using one axiom to characterize rough set and fuzzy rough set approximations
Information Sciences: an International Journal
Alternative rule induction methods based on incremental object using rough set theory
Applied Soft Computing
Relationships between covering-based rough sets and relation-based rough sets
Information Sciences: an International Journal
Related family: A new method for attribute reduction of covering information systems
Information Sciences: an International Journal
Information Sciences: an International Journal
Multigranulation rough sets: From partition to covering
Information Sciences: an International Journal
FRPS: A Fuzzy Rough Prototype Selection method
Pattern Recognition
Quick attribute reduction in inconsistent decision tables
Information Sciences: an International Journal
A novel method for attribute reduction of covering decision systems
Information Sciences: an International Journal
Four matroidal structures of covering and their relationships with rough sets
International Journal of Approximate Reasoning
Duality, conjugacy and adjointness of approximation operators in covering-based rough sets
International Journal of Approximate Reasoning
On the topological properties of generalized rough sets
Information Sciences: an International Journal
Soft fuzzy rough sets and its application in decision making
Artificial Intelligence Review
International Journal of Approximate Reasoning
A Comparative Study of Ordered and Covering Information Systems
Fundamenta Informaticae
Minimal Description and Maximal Description in Covering-based Rough Sets
Fundamenta Informaticae
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Traditional rough set theory is mainly used to extract rules from and reduce attributes in databases in which attributes are characterized by partitions, while the covering rough set theory, a generalization of traditional rough set theory, does the same yet characterizes attributes by covers. In this paper, we propose a way to reduce the attributes of covering decision systems, which are databases characterized by covers. First, we define consistent and inconsistent covering decision systems and their attribute reductions. Then, we state the sufficient and the necessary conditions for reduction. Finally, we use a discernibility matrix to design algorithms that compute all the reducts of consistent and inconsistent covering decision systems. Numerical tests on four public data sets show that the proposed attribute reductions of covering decision systems accomplish better classification performance than those of traditional rough sets.