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Palm probabilities : ウィキペディア英語版 | Palm calculus
In the study of stochastic processes, Palm calculus, named after Swedish teletrafficist Conny Palm, is the study of the relationship between probabilities conditioned on a specified event and time average probabilities. A Palm probability or Palm expectation, often denoted or , is a probability or expectation conditioned on a specified event occurring at time 0. ==Little's formula== A simple example of a formula from Palm calculus is Little's law , which states that the time-average number of users (''L'') in a system is equal to the product of the rate () at which users arrive and the Palm-average waiting time (''W'') that a user spends in the system. That is, the average ''W'' gives equal weight to the waiting time of all customers, rather than being the time average of "the waiting times of the customers currently in the system".
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Palm calculus」の詳細全文を読む
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