Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detecting gravitational-wave transients at five sigma: a hierarchical
  approach   As second-generation gravitational-wave detectors prepare to analyze data at
unprecedented sensitivity, there is great interest in searches for unmodeled
transients, commonly called bursts. Significant effort has yielded a variety of
techniques to identify and characterize such transient signals, and many of
these methods have been applied to produce astrophysical results using data
from first-generation detectors. However, the computational cost of background
estimation remains a challenging problem; it is difficult to claim a 5{\sigma}
detection with reasonable computational resources without paying for efficiency
with reduced sensitivity. We demonstrate a hierarchical approach to
gravitational-wave transient detection, focusing on long-lived signals, which
can be used to detect transients with significance in excess of 5{\sigma} using
modest computational resources. In particular, we show how previously developed
seedless clustering techniques can be applied to large datasets to identify
high-significance candidates without having to trade sensitivity for speed.

2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg