Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A complexity measure for diachronic Chinese phonology   This paper addresses the problem of deriving distance measures between parent
and daughter languages with specific relevance to historical Chinese phonology.
The diachronic relationship between the languages is modelled as a
Probabilistic Finite State Automaton. The Minimum Message Length principle is
then employed to find the complexity of this structure. The idea is that this
measure is representative of the amount of dissimilarity between the two
languages.

2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics