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A new non-specificity measure in evidence theory based on belief intervals

Chinese Journal of Aeronautics 2016年第3期29卷 704-713页

作者： Yang Yi Han Deqian Jean Dezert SKLSVMS School of AerospaceXi'an Jiaotong UniversityXi'an 710049China Center for Information Engineering Science Research Xi'an Jiaotong UniversityXi'an 710049China ONERA The Freneh Aerospace LabChemin de la HunireF-91761 PalaiseauFrance

In the theory of belief functions, the measure of uncertainty is an important concept, which is used for representing some types of uncertainty incorporated in bodies of evidence such as the discord and the non-specificity. For the non-specificity part, some traditional measures use for reference the Hartley measure in classical set theory; other traditional measures use the simple and heuristic function for joint use of mass assignments and the cardinality of focal elements. In this paper, a new non-specificity measure is proposed using lengths of belief intervals, which represent the degree of imprecision. Therefore, it has more intuitive physical meaning. It can be proved that our new measure can be rewritten in a general form for the non-specificity. Our new measure is also proved to be a strict non-specificity measure with some desired properties. Numerical examples, simulations, the related analyses and proofs are provided to show the characteristics and good properties of the new non-specificity definition. An example of an application of the new non- specificity measure is also presented.

关键词： Belief interval Evidence theoryImprecision non-specificity Uncertainty

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Remarks on “A new non-specificity measure in evidence theory based on belief intervals”

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Chinese Journal of Aeronautics 2018年第3期31卷 529-533页

作者： Joaquín ABELLAN Department of Computer Science and Artificial Intelligence University of Granada

Two types of uncertainty co-exist in the theory of evidence： discord and *** 90s, many mathematical expressions have arisen to quantify these two parts in an *** important aspect of each measure presented is the verification of a coherent set of *** non-specificity, so far only one measure verifies an important set of those properties. Very recently, a new measure of non-specificity based on belief intervals has been presented as an alternative measure that quantifies a similar set of properties（Yang et al., 2016）. It is shown that the new measure really does not verify two of those important properties. Some errors have been found in their corresponding proofs in the original publication.

关键词： Additivity Imprecise probabilities non-specificity Subadditivity Theory of evidence Uncertainty measures

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No DCX-positive neurogenesis in the cerebral cortex of the adult primate

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Neural Regeneration Research 2020年第7期15卷 1290-1299页

作者： Ruo-Xu Liu Jie Ma Bin Wang Tian Tian Ning Guo Shao-Jun Liu Institute of Military Cognition and Brain Sciences BeijingChina Department of Pharmacy Medical CollegeHuanghe S&T UniversityZhengzhouHenan ProvinceChina

Whether endogenous neurogenesis occurs in the adult cortex remains *** increasing number of reports suggest that doublecortin(DCX)-positive neurogenesis persists in the adult primate cortex,attracting enormous attention *** this study,different DCX antibodies were used together with NeuN antibodies in immunohistochemistry and western blot assays using adjacent cortical sections from adult *** adsorption,antigen binding,primary antibody omission and antibody-free experiments were used to assess specificity of the *** found either strong fluorescent signals,medium-weak intensity signals in some cells,weak signals in a few perikarya or near complete lack of labeling in adjacent cortical sections incubated with the various DCX *** putative DCX-positive cells in the cortex were also positive for NeuN,a specific marker of mature ***,further experiments showed that most of these signals were either the result of antibody cross reactivity,the non-specificity of secondary antibodies or tissue *** confirmed DCX-positive cells were detected in the adult macaque cortex by *** findings show that DCX-positive neurogenesis does not occur in the cerebral cortex of adult primates,and that false-positive signals(artefacts)are caused by antibody cross reactivity and *** experimental protocols were approved by the Institutional Animal Care and Use Committee of the Institute of Neuroscience,Beijing,China(approval ***-AMMS-2014-501).

关键词： adult neurogenesis antigen neutralization autofluorescence cross reaction cross reactivity doublecortin neocortex NeuN non-specificity primates tissue adsorption

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