Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time series analysis with dynamic law exploration   In this paper we examine, how the dynamic laws governing the time evolution
of a time series can be identified. We give a finite difference equation as
well as a differential equation representation for that. We also study, how the
required symmetries, like time reversal can be imposed on the laws. We study
the compression performance of linear laws on sound data.

14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg