证据融合的另一个范例

J. J. Sudano, Lockheed Martin
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引用次数: 35

摘要

在信息融合情况下,对时间关键型决策的不确定性和不完全信息集进行管理至关重要。Dempster-Shafer证据理论是一种非常优雅的数学方法。证据理论知识由一个带有幂集基本信念赋值(BBA)成分的识别框架来表示。对于实时实现来说,这可能是一个难题,特别是在支持实时系统中的许多假设时。提出了邓普斯特-谢弗证据理论的多/对偶概率描述,以克服实时实现中的功率集问题。通过pignistic概率变换将bba集映射为支持不完全信息集的多个概率集。通过概率信息内容方程对这些概率集进行排序,以便进行进一步的处理(融合、决策)。这个问题已经从解决组件的功率集2Omega转变为多个概率组件N Omega,大大简化了实时实现。给出了一种体现决策空间离散性的融合过程
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Yet Another Paradigm Illustrating Evidence Fusion (YAPIEF)
In information fusion situations, it is vital to manage uncertainty and the incomplete information set for time critical decisions. The Dempster-Shafer evidential theory is a very elegant method of mathematically representing this knowledge. The evidential theory knowledge is represented by a frame of discernment with a power-set number of basic belief assignment (BBA) components. For real time implementation this may be a bit of a conundrum especially when supporting many hypotheses in real time systems. A multi/dual probability delineation of Dempster-Shafer evidential theory is presented to overcome the power-set problem for real time implementations. The set of BBAs are mapped via pignistic probability transforms to many sets of probabilities that support the incomplete information set. These sets of probabilities are ordered via the probability information content equation for further processing (fusing, decision making). The problem has been transformed from addressing a power-set of components 2Omega to a multiple number of probability components N Omega greatly simplifying real time implementations. A fusion process demonstrating dispersion in decision space is also presented
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