Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ranked Sparse Signal Support Detection   This paper considers the problem of detecting the support (sparsity pattern)
of a sparse vector from random noisy measurements. Conditional power of a
component of the sparse vector is defined as the energy conditioned on the
component being nonzero. Analysis of a simplified version of orthogonal
matching pursuit (OMP) called sequential OMP (SequOMP) demonstrates the
importance of knowledge of the rankings of conditional powers. When the simple
SequOMP algorithm is applied to components in nonincreasing order of
conditional power, the detrimental effect of dynamic range on thresholding
performance is eliminated. Furthermore, under the most favorable conditional
powers, the performance of SequOMP approaches maximum likelihood performance at
high signal-to-noise ratio.

16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph