Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Estimation of linear autoregressive models with Markov-switching, the
  E.M. algorithm revisited   This work concerns estimation of linear autoregressive models with
Markov-switching using expectation maximisation (E.M.) algorithm. Our method
generalise the method introduced by Elliot for general hidden Markov models and
avoid to use backward recursion.

33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con