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#

Overview

In this chapter, we will design moment matching algorithms.
To prove the optimality of our moment matching
algorithms with respect to the number of
phases used in the solution, we will also provide a characterization
of the general probability distribution with respect to the necessary
number of phases in the approximate PH distribution.
In this section, we briefly summarize these results.
Details will be provided in later sections.

**Subsections**

Takayuki Osogami
2005-07-19