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Axiomatic Definition
The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Barbara Vantaggi – One of the best experts on this subject based on the ideXlab platform.
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Conditional submodular Choquet expected values and conditional coherent risk measures
International Journal of Approximate Reasoning, 2019Co-Authors: Davide Petturiti, Barbara VantaggiAbstract:Abstract We provide an Axiomatic Definition of conditional submodular capacity that allows conditioning on “null” events and is the basis for the notions of consistency and of consistent extension of a partial assessment. The same Definition gives rise to an Axiomatic Definition of conditional submodular Choquet expected value, which is a conditional functional defined on conditional gambles, that can be expressed as the Choquet integral with respect to its restriction on conditional indicators. Finally, the notion of conditional submodular Choquet expected value is used to provide a Definition of conditional submodular coherent risk measure that, locally on every conditioning event, has an upper expected loss interpretation.
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independence and conditional possibility for strictly monotone triangular norms research articles
International Journal of Intelligent Systems, 2006Co-Authors: Laura Ferracuti, Barbara VantaggiAbstract:In the literature there are different Definitions of conditional possibility. Starting from a general Axiomatic Definition, we propose a Definition of independence for o-conditional possibility, in the case that o is a strictly monotone triangular norm. We study its main properties to compare it to other Definitions introduced in possibility theory. Then, we show that the controversial aspects related to logical dependencies (structural zeros) can be circumvented. Moreover, a set of properties (the well-known graphoid properties) has been considered to be tested, allowing us to compare the proposed Definition to the independence notions given in the context of other uncertainty formalisms. © 2006 Wiley Periodicals, Inc. Int J Int Syst 21: 299–323, 2006.
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independence and conditional possibility for strictly monotone triangular norms
International Journal of Intelligent Systems, 2006Co-Authors: Laura Ferracuti, Barbara VantaggiAbstract:In the literature there are different Definitions of conditional possibility. Starting from a general Axiomatic Definition, we propose a Definition of independence for ⊙-conditional possibility, in the case that 0 is a strictly monotone triangular norm. We study its main properties to compare it to other Definitions introduced in possibility theory. Then, we show that the controversial aspects related to logical dependencies (structural zeros) can be circumvented. Moreover, a set of properties (the well-known graphoid properties) has been considered to be tested, allowing us to compare the proposed Definition to the independence notions given in the context of other uncertainty formalisms.
Laura Ferracuti – One of the best experts on this subject based on the ideXlab platform.
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independence and conditional possibility for strictly monotone triangular norms research articles
International Journal of Intelligent Systems, 2006Co-Authors: Laura Ferracuti, Barbara VantaggiAbstract:In the literature there are different Definitions of conditional possibility. Starting from a general Axiomatic Definition, we propose a Definition of independence for o-conditional possibility, in the case that o is a strictly monotone triangular norm. We study its main properties to compare it to other Definitions introduced in possibility theory. Then, we show that the controversial aspects related to logical dependencies (structural zeros) can be circumvented. Moreover, a set of properties (the well-known graphoid properties) has been considered to be tested, allowing us to compare the proposed Definition to the independence notions given in the context of other uncertainty formalisms. © 2006 Wiley Periodicals, Inc. Int J Int Syst 21: 299–323, 2006.
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independence and conditional possibility for strictly monotone triangular norms
International Journal of Intelligent Systems, 2006Co-Authors: Laura Ferracuti, Barbara VantaggiAbstract:In the literature there are different Definitions of conditional possibility. Starting from a general Axiomatic Definition, we propose a Definition of independence for ⊙-conditional possibility, in the case that 0 is a strictly monotone triangular norm. We study its main properties to compare it to other Definitions introduced in possibility theory. Then, we show that the controversial aspects related to logical dependencies (structural zeros) can be circumvented. Moreover, a set of properties (the well-known graphoid properties) has been considered to be tested, allowing us to compare the proposed Definition to the independence notions given in the context of other uncertainty formalisms.
Gao Zheng – One of the best experts on this subject based on the ideXlab platform.
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A Similarity Measure between Fuzzy Sets
Applied Mechanics and Materials, 2012Co-Authors: Gao ZhengAbstract:The similarity measure is one of the most useful fuzzy measures in fuzzy logic theory. In this paper, we propose a new similarity measure between fuzzy sets. As a preparation, we first choose an Axiomatic Definition for the similarity measure. Then, according to the chosen Axiomatic Definition, we propose a new computation formula. Finally, we give two examples to validate its performance. The results show that the new similarity measure is rational for fuzzy sets.
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FSKD – An inclusion measure between general type-2 fuzzy sets
2010 Seventh International Conference on Fuzzy Systems and Knowledge Discovery, 2010Co-Authors: Gao Zheng, Jian Xiao, Yong ZhangAbstract:The inclusion measure indicates the degree that a fuzzy set is contained in another fuzzy set and can be used in many fields. However, the inclusion measure between type-2 fuzzy sets has received little attention. Hence in this paper, we propose an inclusion measure for general type-2 fuzzy sets. Firstly, we select an Axiomatic Definition for the new inclusion measure. Then, according to the selected Axiomatic Definition, we propose a computation formula by considering the FOU and the secondary membership function of the general type-2 fuzzy set. Finally, we present two examples to explain its calculation and validate its performance. The results show that the proposed inclusion measure is reasonable and reliable for general type-2 fuzzy sets.
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An inclusion measure between general type-2 fuzzy sets
2010 Seventh International Conference on Fuzzy Systems and Knowledge Discovery, 2010Co-Authors: Gao Zheng, Jian Xiao, Yong ZhangAbstract:The inclusion measure indicates the degree that a fuzzy set is contained in another fuzzy set and can be used in many fields. However, the inclusion measure between type-2 fuzzy sets has received little attention. Hence in this paper, we propose an inclusion measure for general type-2 fuzzy sets. Firstly, we select an Axiomatic Definition for the new inclusion measure. Then, according to the selected Axiomatic Definition, we propose a computation formula by considering the FOU and the secondary membership function of the general type-2 fuzzy set. Finally, we present two examples to explain its calculation and validate its performance. The results show that the proposed inclusion measure is reasonable and reliable for general type-2 fuzzy sets.