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- W2052788051 abstract "We propose a new technique for fitting long-tailed data sets into phase-type (PH) distributions. This technique fits data sets with non-monotone densities into a mixture of Erlang and hyperexponential distributions, and data sets with completely monotone densities into hyperexponential distributions. The method partitions the data set in a divide-and-conquer fashion and uses the expectation–maximization (EM) algorithm to fit the data of each partition into a hyperexponential distribution. The fits of all partitions are combined to generate the final fit of the entire data set. The proposed method is accurate and computationally efficient. Furthermore, it allows one to apply existing analytic tools to analyze the behavior of queuing systems with long-tailed arrival and/or service processes via tractable models." @default.
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- W2052788051 date "2004-01-01" @default.
- W2052788051 modified "2023-10-12" @default.
- W2052788051 title "An EM-based technique for approximating long-tailed data sets with PH distributions" @default.
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- W2052788051 doi "https://doi.org/10.1016/s0166-5316(03)00101-9" @default.
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