Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectrometer Calibration by Expectation Maximization Method   Expectation Maximization (EM) algorithm is a parameter estimation method from
incomplete observations. In this paper, an implementation of this method to the
calibration of HKS spectrometer at Jefferson Lab is described. We show that the
application of EM method is able to calibrate the spectrometer properly in the
presence of high background noise, while the traditional nonlinear Least Square
method fail. The preliminary results of HKS spectrometer calibration is
presented.

27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc