Interval structure: a framework for representing uncertain information
UAI '92 Proceedings of the eighth conference on Uncertainty in Artificial Intelligence
Variable precision rough set model
Journal of Computer and System Sciences
Rough-set reasoning about uncertain data
Fundamenta Informaticae - Special issue: rough sets
Tolerance approximation spaces
Fundamenta Informaticae - Special issue: rough sets
Extensions and intentions in the rough set theory
Information Sciences: an International Journal
Rough set approach to incomplete information systems
Information Sciences: an International Journal
Information Sciences: an International Journal
Rough Sets: Mathematical Foundations
Rough Sets: Mathematical Foundations
Information Sciences—Informatics and Computer Science: An International Journal
Reduction and axiomization of covering generalized rough sets
Information Sciences: an International Journal
Rough fuzzy approximations on two universes of discourse
Information Sciences: an International Journal
Transformation of rough set models
Knowledge-Based Systems
Mixed feature selection based on granulation and approximation
Knowledge-Based Systems
A comparative study on rough set based class imbalance learning
Knowledge-Based Systems
On characterization of generalized interval-valued fuzzy rough sets on two universes of discourse
International Journal of Approximate Reasoning
Rough set theory based on two universal sets and its applications
Knowledge-Based Systems
Decision-theoretic rough set models
RSKT'07 Proceedings of the 2nd international conference on Rough sets and knowledge technology
Approximation reduction in inconsistent incomplete decision tables
Knowledge-Based Systems
Approaches to attribute reduction in concept lattices induced by axialities
Knowledge-Based Systems
Research on the model of rough set over dual-universes
Knowledge-Based Systems
A rough set approach to feature selection based on power set tree
Knowledge-Based Systems
Variable precision rough set model over two universes and its properties
Soft Computing - A Fusion of Foundations, Methodologies and Applications - Special issue on Digital Information Forensics
Fuzzy rough set based attribute reduction for information systems with fuzzy decisions
Knowledge-Based Systems
A vague-rough set approach for uncertain knowledge acquisition
Knowledge-Based Systems
Neighborhood systems-based rough sets in incomplete information system
Knowledge-Based Systems
International Journal of Approximate Reasoning
Fuzzy probabilistic rough set model on two universes and its applications
International Journal of Approximate Reasoning
Multi-level rough set reduction for decision rule mining
Applied Intelligence
Information Sciences: an International Journal
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In recent years, much attention has been given to the rough set models based on two universes of discourse and different kinds of rough set models on two universes have been developed from different points of view. In this paper, a novel model, i.e., the graded rough set model on two distinct but related universes (GRSTU) is proposed from the absolute quantitative point of view. We study the basic properties of approximation operators in GRSTU, and introduce a relation matrix based algorithm to compute the lower and upper approximations of a set of objects in GRSTU. Furthermore, the relationships between classical rough set model and GRSTU are discussed and some conclusions related to the GRSTU are given. Finally, several examples are employed to demonstrate the conceptual arguments of GRSTU, and an application of GRSTU is also illuminated in details.