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单词 First passage time
释义

First passage time

英语百科

First-hitting-time model

Events are often triggered when a stochastic or random process first encounters a threshold. The threshold can be a barrier, boundary or specified state of a system. The amount of time required for a stochastic process, starting from some initial state, to encounter a threshold for the first time is referred to variously as a first hitting time. In statistics, first-hitting-time models are a sub-class of survival models. The first hitting time, also called first passage time, of the barrier set B with respect to an instance of a stochastic process is the time until the stochastic process first enters B.

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更新时间:2025/6/20 1:43:03