Phase-type fitting using hyperstar

Reinecke, Philipp ORCID: https://orcid.org/0000-0002-2411-0891, Krauß, Tilman and Wolter, Katinka 2013. Phase-type fitting using hyperstar. Lecture notes in computer science 8168 10.1007/978-3-642-40725-3_13

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Abstract

In this paper we provide a hands-on discussion of the use of the HyperStar phase-type fitting tool in common application scenarios. HyperStar allows fitting Hyper-Erlang distributions to empirical data, using a variety of algorithms and operation modes. We describe simple cluster-based fitting, a new graphical method for refining the density approximation, a new command-line interface, and the integration of HyperStar with a Mathematica implementation of a fitting algorithm. Furthermore, we describe the use of Hyper-Erlang distributions in simulation. Throughout our discussion we illustrate the concepts on a data set which has been shown to be difficult to fit with a PH distribution.

Item Type:	Article
Status:	Published
Schools:	Schools > Computer Science & Informatics
ISSN:	1611-3349
Last Modified:	26 Oct 2022 07:14
URI:	https://orca.cardiff.ac.uk/id/eprint/124330

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