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Yiyu Yao
Researcher at University of Regina
Publications - 458
Citations - 28012
Yiyu Yao is an academic researcher from University of Regina. The author has contributed to research in topics: Rough set & Granular computing. The author has an hindex of 78, co-authored 443 publications receiving 24468 citations. Previous affiliations of Yiyu Yao include Beijing University of Technology & Petra Christian University.
Papers
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Three-way decisions with probabilistic rough sets
TL;DR: This paper provides an analysis of three-way decision rules in the classical rough set model and the decision-theoretic rough set models, enriched by ideas from Bayesian decision theory and hypothesis testing in statistics.
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Relational interpretations of neighborhood operators and rough set approximation operators
TL;DR: This paper presents a framework for the formulation, interpretation, and comparison of neighborhood systems and rough set approximations using the more familiar notion of binary relations, and introduces a special class of neighborhood system, called 1-neighborhood systems.
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Constructive and algebraic methods of the theory of rough sets
TL;DR: This paper reviews and compares constructive and algebraic approaches in the study of rough set algebras and states axioms that must be satisfied by the operators.
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MGRS: A multi-granulation rough set
TL;DR: It is shown that some of the properties of Pawlak's rough set theory are special instances of those of MGRS, and several important measures are presented, which are re-interpreted in terms of a classic measure based on sets, the Marczewski-Steinhaus metric and the inclusion degree measure.
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A decision theoretic framework for approximating concepts
Yiyu Yao,S. K. M. Wong +1 more
TL;DR: This paper shows that if a given concept is approximated by one set, the same result given by the α-cut in the fuzzy set theory is obtained, and can derive both the algebraic and probabilistic rough set approximations.