...
首页> 外文期刊>Proceedings of the Workshop on Principles of Advanced and Distributed Simulation >ROBUST ESTIMATION OF MULTIVARIATE JUMP-DIFFUSION PROCESSES VIA DYNAMIC PROGRAMMING
【24h】

ROBUST ESTIMATION OF MULTIVARIATE JUMP-DIFFUSION PROCESSES VIA DYNAMIC PROGRAMMING

机译:通过动态规划对多种跳跃扩散过程进行鲁棒估计

获取原文
获取原文并翻译 | 示例

摘要

In this work we present a framework for estimation of a rather general class of multivariate jump-diffusion processes. We assume that a continuous unobservable linear diffusion processes system is additively mixed together with a discrete jump processes vector and a conventional multi-variate white-noise process. This sum is observed over time as a multi-variate jump-diffusion time-series. Our objective is to identify realizations of all components of the mix in a robust and scalable way. First, we formulate this model as an Mixed-Integer-Programming (MIP) optimization problem extending traditional least-squares estimation framework to include discrete jump processes. Then we propose a Dynamic Programming (DP) approximate algorithm that is reasonably fast & accurate and scales polynomially with time horizon. Finally, we provide numerical test cases illustrating the algorithm performance and robustness.
机译:在这项工作中,我们提出了一个用于估算一类相当普遍的多元跳跃扩散过程的框架。我们假设连续的不可观察的线性扩散过程系统与离散的跳跃过程向量和常规的多变量白噪声过程相加地混合在一起。随着时间的流逝,该总和被视为多元跳跃扩散时间序列。我们的目标是以健壮和可扩展的方式确定混合的所有组成部分的实现。首先,我们将此模型公式化为混合整数编程(MIP)优化问题,该问题扩展了传统的最小二乘估计框架,使其包括离散的跳跃过程。然后,我们提出了一种动态编程(DP)近似算法,该算法相当快速,准确,并且可以随时间范围进行多项式缩放。最后,我们提供了数值测试案例,说明了算法的性能和鲁棒性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号