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Path storage in the particle filter

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 نشر من قبل Pierre E. Jacob
 تاريخ النشر 2013
  مجال البحث الاحصاء الرياضي
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 تأليف Pierre E. Jacob




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This article considers the problem of storing the paths generated by a particle filter and more generally by a sequential Monte Carlo algorithm. It provides a theoretical result bounding the expected memory cost by $T + C N log N$ where $T$ is the time horizon, $N$ is the number of particles and $C$ is a constant, as well as an efficient algorithm to realise this. The theoretical result and the algorithm are illustrated with numerical experiments.


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