Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Online Community Detection by Spectral CUSUM   We present an online community change detection algorithm called spectral
CUSUM to detect the emergence of a community using a subspace projection
procedure based on a Gaussian model setting. Theoretical analysis is provided
to characterize the average run length (ARL) and expected detection delay
(EDD), as well as the asymptotic optimality. Simulation and real data examples
demonstrate the good performance of the proposed method.

17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph