Robust Information Filtering Techniques for Static and Dynamic State Estimation

提案编号：ECS-0524835提案标题：用于静态和动态状态估计的稳健信息过滤技术PI姓名：Ergodmus，DenizPI机构：俄勒冈州健康与科学大学智力价值：该项目解决了“状态估计”的公认挑战，即估计复杂系统中未直接观察到的变量的当前状态。以前的系统理论工作已经发展出了完善的方法，用于在系统本身的动态特性已经完全已知的条件下，变量都是连续的或都是离散的系统。该团队提出了一个根本性的进步，通过统一最近的突破，解决了在一般非线性情况下，当动力系统不完全已知时该怎么做的挑战。最近的工作涉及信息理论学习，sigma点滤波，粒子滤波概念，以及使用递归神经网络和反向传播通过时间（作为非线性动力系统的通用逼近器，它具有很大的优势）。更好的状态估计对于更有效地管理复杂系统的各种挑战都很重要，无论是通过神经网络还是其他组件。选择这里的试验平台--在一个先进的医疗保健诊所原型中对老年患者进行本地化--既是因为它对基础研究的挑战，也是因为它有望成为一个巨大的现实世界效益的起点，教育效益包括跨学科教育（鉴于团队和项目，它是高度可信的），以及更标准的教育效益。

Proposal Number: ECS-0524835Proposal Title: Robust Information Filtering Techniques for Static and Dynamic State EstimationPI Name: Ergodmus, DenizPI Institution: Oregon Health and Science University Intellectual merit: This project addresses the well-established challenge of "state estimation," of estimating the current state of variables in a complex system which are not observed directly. Previous work in systems theory has developed well-perfected methods for systems whose variables are all continuous, or all discrete, under conditions where the dynamics of the system itself are already perfectly known. This team proposes a fundamental advance, by unifying recent breakthroughs addressing the challenge of what to do when the dynamical system is not perfectly known, in the general nonlinear case. The recent work to be drawn upon involves information-theoretic learning, sigma-point filtering, particle filtering concepts, and the use of recurrent neural networks and backpropagation through time (which offer major advantages as universal approximators of nonlinear dynamical systems).Broader Benefits: Better state estimation will be important to all kinds of challenges in managing complex systems more effectively, whether by neural networks or other components. The testbed to be used here- the localization of elderly patients in a prototype advanced health care clinic - was chosen both for its value as a challenge to the basic research and for its promise as a starting point for large real-world benefits.The educational benefits included cross-disciplinary education (highly credible, given the team and the project) plus more standard sorts of benefits to education.