The Experts below are selected from a list of 35655 Experts worldwide ranked by ideXlab platform
Svetlana Asmuss - One of the best experts on this subject based on the ideXlab platform.
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aggregation of risk level assessments based on fuzzy Equivalence Relation
European Society for Fuzzy Logic and Technology Conference, 2017Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:The paper deals with the problem of aggregation of risk level assessments. We describe the technique of a risk level evaluation taking into account values of the risk level obtained for objects which are in some sense equivalent. For this purpose we propose to use the construction of a general aggregation operator based on the corresponding fuzzy Equivalence Relation. Numerical example of the investment risk level aggregation using an Equivalence Relation obtained on the basis of different macroeconomic factors for countries of one region is considered.
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EUSFLAT/IWIFSGN (3) - Aggregation of Risk Level Assessments Based on Fuzzy Equivalence Relation
Advances in Fuzzy Logic and Technology 2017, 2017Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:The paper deals with the problem of aggregation of risk level assessments. We describe the technique of a risk level evaluation taking into account values of the risk level obtained for objects which are in some sense equivalent. For this purpose we propose to use the construction of a general aggregation operator based on the corresponding fuzzy Equivalence Relation. Numerical example of the investment risk level aggregation using an Equivalence Relation obtained on the basis of different macroeconomic factors for countries of one region is considered.
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General aggregation operators based on a fuzzy Equivalence Relation in the context of approximate systems
Fuzzy Sets and Systems, 2016Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:Our paper deals with special constructions of general aggregation operators, which are based on a fuzzy Equivalence Relation and provide upper and lower approximations of the pointwise extension of an ordinary aggregation operator. We consider properties of these approximations and explore their role in the context of extensional fuzzy sets with respect to the corresponding Equivalence Relation. We consider also upper and lower approximations of a t-norm extension of an ordinary aggregation operator. Finally, we describe an approximate system, considering the lattice of all general aggregation operators and the lattice of all fuzzy Equivalence Relations.
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upper and lower generalized factoraggregations based on fuzzy Equivalence Relation
IEEE International Conference on Fuzzy Systems, 2014Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:We develop the concept of a general factoraggre-gation operator introduced by the authors on the basis of an Equivalence Relation and applied in two recent papers for analysis of bilevel linear programming solving parameters. In the paper this concept is generalized by using a fuzzy Equivalence Relation instead of the crisp one. By using a left-continuous t-norm and its residuum we define and investigate two modifications of such generalized construction: upper and lower generalized factoraggregations. These generalized factoraggregations can be used for construction of extensional fuzzy sets.
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FUZZ-IEEE - Upper and lower generalized factoraggregations based on fuzzy Equivalence Relation
2014 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE), 2014Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:We develop the concept of a general factoraggre-gation operator introduced by the authors on the basis of an Equivalence Relation and applied in two recent papers for analysis of bilevel linear programming solving parameters. In the paper this concept is generalized by using a fuzzy Equivalence Relation instead of the crisp one. By using a left-continuous t-norm and its residuum we define and investigate two modifications of such generalized construction: upper and lower generalized factoraggregations. These generalized factoraggregations can be used for construction of extensional fuzzy sets.
Pavels Orlovs - One of the best experts on this subject based on the ideXlab platform.
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aggregation of risk level assessments based on fuzzy Equivalence Relation
European Society for Fuzzy Logic and Technology Conference, 2017Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:The paper deals with the problem of aggregation of risk level assessments. We describe the technique of a risk level evaluation taking into account values of the risk level obtained for objects which are in some sense equivalent. For this purpose we propose to use the construction of a general aggregation operator based on the corresponding fuzzy Equivalence Relation. Numerical example of the investment risk level aggregation using an Equivalence Relation obtained on the basis of different macroeconomic factors for countries of one region is considered.
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EUSFLAT/IWIFSGN (3) - Aggregation of Risk Level Assessments Based on Fuzzy Equivalence Relation
Advances in Fuzzy Logic and Technology 2017, 2017Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:The paper deals with the problem of aggregation of risk level assessments. We describe the technique of a risk level evaluation taking into account values of the risk level obtained for objects which are in some sense equivalent. For this purpose we propose to use the construction of a general aggregation operator based on the corresponding fuzzy Equivalence Relation. Numerical example of the investment risk level aggregation using an Equivalence Relation obtained on the basis of different macroeconomic factors for countries of one region is considered.
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General aggregation operators based on a fuzzy Equivalence Relation in the context of approximate systems
Fuzzy Sets and Systems, 2016Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:Our paper deals with special constructions of general aggregation operators, which are based on a fuzzy Equivalence Relation and provide upper and lower approximations of the pointwise extension of an ordinary aggregation operator. We consider properties of these approximations and explore their role in the context of extensional fuzzy sets with respect to the corresponding Equivalence Relation. We consider also upper and lower approximations of a t-norm extension of an ordinary aggregation operator. Finally, we describe an approximate system, considering the lattice of all general aggregation operators and the lattice of all fuzzy Equivalence Relations.
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upper and lower generalized factoraggregations based on fuzzy Equivalence Relation
IEEE International Conference on Fuzzy Systems, 2014Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:We develop the concept of a general factoraggre-gation operator introduced by the authors on the basis of an Equivalence Relation and applied in two recent papers for analysis of bilevel linear programming solving parameters. In the paper this concept is generalized by using a fuzzy Equivalence Relation instead of the crisp one. By using a left-continuous t-norm and its residuum we define and investigate two modifications of such generalized construction: upper and lower generalized factoraggregations. These generalized factoraggregations can be used for construction of extensional fuzzy sets.
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FUZZ-IEEE - Upper and lower generalized factoraggregations based on fuzzy Equivalence Relation
2014 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE), 2014Co-Authors: Pavels Orlovs, Svetlana AsmussAbstract:We develop the concept of a general factoraggre-gation operator introduced by the authors on the basis of an Equivalence Relation and applied in two recent papers for analysis of bilevel linear programming solving parameters. In the paper this concept is generalized by using a fuzzy Equivalence Relation instead of the crisp one. By using a left-continuous t-norm and its residuum we define and investigate two modifications of such generalized construction: upper and lower generalized factoraggregations. These generalized factoraggregations can be used for construction of extensional fuzzy sets.
Inmaculada De Hoyos - One of the best experts on this subject based on the ideXlab platform.
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a refined wiener hopf Equivalence Relation for polynomial matrices
Linear Algebra and its Applications, 2016Co-Authors: Itziar Baragaña, Asuncion M Beitia, Inmaculada De HoyosAbstract:Abstract We introduce an Equivalence Relation, which is finer than the left Wiener–Hopf Equivalence at infinity for polynomial matrices, and we obtain discrete invariants and a reduced form for this Equivalence Relation.
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A refined Wiener–Hopf Equivalence Relation for polynomial matrices
Linear Algebra and its Applications, 2016Co-Authors: Itziar Baragaña, M. Asunción Beitia, Inmaculada De HoyosAbstract:Abstract We introduce an Equivalence Relation, which is finer than the left Wiener–Hopf Equivalence at infinity for polynomial matrices, and we obtain discrete invariants and a reduced form for this Equivalence Relation.
Funda Karaçal - One of the best experts on this subject based on the ideXlab platform.
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An Equivalence Relation based on the U-partial order
Information Sciences, 2017Co-Authors: M. Nesibe Kesicioğlu, Ümit Ertuğrul, Funda KaraçalAbstract:Abstract In this paper, an Equivalence Relation on the class of uninorms induced by the U-partial order is discussed. Defining the set of all incomparable elements w.r.t. the U-partial order, this set is deeply investigated and some Relations with the sets of all incomparable elements w.r.t. the orders induced by the corresponding underlying t-norm and t-conorm are presented. Also, the set of all incomparable elements with a fixed element w.r.t. the U-partial order is defined and studied in detail.
Itziar Baragaña - One of the best experts on this subject based on the ideXlab platform.
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a refined wiener hopf Equivalence Relation for polynomial matrices
Linear Algebra and its Applications, 2016Co-Authors: Itziar Baragaña, Asuncion M Beitia, Inmaculada De HoyosAbstract:Abstract We introduce an Equivalence Relation, which is finer than the left Wiener–Hopf Equivalence at infinity for polynomial matrices, and we obtain discrete invariants and a reduced form for this Equivalence Relation.
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A refined Wiener–Hopf Equivalence Relation for polynomial matrices
Linear Algebra and its Applications, 2016Co-Authors: Itziar Baragaña, M. Asunción Beitia, Inmaculada De HoyosAbstract:Abstract We introduce an Equivalence Relation, which is finer than the left Wiener–Hopf Equivalence at infinity for polynomial matrices, and we obtain discrete invariants and a reduced form for this Equivalence Relation.
