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原文传递 Online Dectection and Modeling of Safety Boundaries for Aerospace Application Using Bayesian Statistics.

题名：	Online Dectection and Modeling of Safety Boundaries for Aerospace Application Using Bayesian Statistics.
作者：	He, Y.
关键词：	Aerospace systems, Bayes theorem, Flight safety, Flight control, Statistical analysis, Machine learning, Mathematical models, Shapes, Aircraft control, Algorithms, F-15 aircraft, Neural nets, Adaptive control, Airspace, Computerized simulation
摘要：	The behavior of complex aerospace systems is governed by numerous parameters. For safety analysis it is important to understand how the system behaves with respect to these parameter values. In particular, understanding the boundaries between safe and unsafe regions is of major importance. In this paper, we describe a hierarchical Bayesian statistical modeling approach for the online detection and characterization of such boundaries. Our method for classification with active learning uses a particle filter-based model and a boundary-aware metric for best performance. From a library of candidate shapes incorporated with domain expert knowledge, the location and parameters of the boundaries are estimated using advanced Bayesian modeling techniques. The results of our boundary analysis are then provided in a form understandable by the domain expert. We illustrate our approach using a simulation model of a NASA neuro-adaptive flight control system, as well as a system for the detection of separation violations in the terminal airspace.
总页数：	He, Y.
报告类型：	科技报告