Chapter

Computer Performance Evaluation: Modelling Techniques and Tools

Volume 2324 of the series Lecture Notes in Computer Science pp 82-91

Date:

PhFit: A General Phase-Type Fitting Tool

  • András HorváthAffiliated withDept. of Telecommunications, Technical University of Budapest
  • , Miklós TelekAffiliated withDept. of Telecommunications, Technical University of Budapest

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Abstract

PhFit, a new Phase-type fitting tool is presented in this paper. The presented tool is novel from several aspects. It allows for approximating distributions or set of samples not only by continuous but by discrete Phase-type distributions as well. The implemented algorithms separate the fitting of the body and the tail part of the distribution which results in satisfactory fitting also for heavy-tail distributions. Moreover, PhFit allows the user to choose the distance measure according to which the fitting is performed.