Estimating Stochastic Poisson Intensities Using Deep Latent Models
Estimating Stochastic Poisson Intensities Using Deep Latent Models
复制标题
使用深度潜在模型估计随机泊松强度
DOI:
10.1109/wsc48552.2020.9383967
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Honnappa, Harsha
中科院分区:
文献类型:
--
作者:
Wang, Ruixin;Jaiswal, Prateek;Honnappa, Harsha
We present a new method for estimating the stochastic intensity of a doubly stochastic Poisson process. Statistical and theoretical analyses of traffic traces show that these processes are appropriate models of high intensity traffic arriving at an array of service systems. The statistical estimation of the underlying latent stochastic intensity process driving the traffic model involves a rather complicated nonlinear filtering problem. We develop a novel simulation method, using deep neural networks to approximate the path measures induced by the stochastic intensity process, for solving this nonlinear filtering problem. Our simulation studies demonstrate that the method is quite accurate on both in-sample estimation and on an out-of-sample performance prediction task for an infinite server queue.
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