Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the nature of Phase-Type Poisson distributions   Matrix-form Poisson probability distributions were recently introduced as one
matrix generalization of Panjer distributions. We show in this paper that under
the constraint that their representation is to be nonnegative, they have a
physical interpretation as extensions of PH distributions, and we name this
restricted family Phase-type Poisson. We use our physical interpretation to
construct an EM algorithm-based estimation procedure.

34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
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The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an