Filtering via simulation: Auxiliary particle filters

Filtering via simulation: Auxiliary particle filters
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DOI:
10.2307/2670179
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发表时间:
1999-06-01
影响因子:
3.7
通讯作者:
Shephard, N
Shephard, N
中科院分区:
数学1区
文献类型:
--
作者:
Pitt, MK;Shephard, N

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本文分析了最近提出的时间序列滤波的粒子方法。我们建议,该算法是不强大的离群值有两个原因:模拟器的设计和使用的离散支持表示顺序更新的先验分布。在这里,我们解决这些问题中的第一个。
This article analyses the recently suggested particle approach to filtering time series. We suggest that the algorithm is not robust to outliers for two reasons: the design of the simulators and the use of the discrete support to represent the sequentially updating prior distribution. Here we tackle the first of these problems.