Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Deeper Wider Faster program: chasing the fastest bursts in the
  Universe   We present the Deeper Wider Faster (DWF) program that coordinates more than
30 multi-wavelength and multi-messenger facilities worldwide and in space to
detect and study fast transients (millisecond-to-hours duration). DWF has four
main components, (1) simultaneous observations, where about 10 major
facilities, from radio to gamma-ray, are coordinated to perform deep,
wide-field, fast-cadenced observations of the same field at the same time.
Radio telescopes search for fast radio bursts while optical imagers and
high-energy instruments search for seconds-to-hours timescale transient events,
(2) real-time (seconds to minutes) supercomputer data processing and candidate
identification, along with real-time (minutes) human inspection of candidates
using sophisticated visualisation technology, (3) rapid-response (minutes)
follow-up spectroscopy and imaging and conventional ToO observations, and (4)
long-term follow up with a global network of 1-4m-class telescopes. The
principal goals of DWF are to discover and study counterparts to fast radio
bursts and gravitational wave events, along with millisecond-to-hour duration
transients at all wavelengths.

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The categories of this paper are: gr-qc
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: cs
30
The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn