Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identification of single spectral lines through supervised machine
  learning in a large HST survey (WISP): a pilot study for Euclid and WFIRST   Future surveys focusing on understanding the nature of dark energy (e.g.,
Euclid and WFIRST) will cover large fractions of the extragalactic sky in
near-IR slitless spectroscopy. These surveys will detect a large number of
galaxies that will have only one emission line in the covered spectral range.
In order to maximize the scientific return of these missions, it is imperative
that single emission lines are correctly identified. Using a supervised
machine-learning approach, we classified a sample of single emission lines
extracted from the WFC3 IR Spectroscopic Parallel survey (WISP), one of the
closest existing analogs to future slitless surveys. Our automatic software
integrates a SED fitting strategy with additional independent sources of
information. We calibrated it and tested it on a "gold" sample of securely
identified objects with multiple lines detected. The algorithm correctly
classifies real emission lines with an accuracy of 82.6%, whereas the accuracy
of the SED fitting technique alone is low (~50%) due to the limited amount of
photometric data available (<=6 bands). While not specifically designed for the
Euclid and WFIRST surveys, the algorithm represents an important precursor of
similar algorithms to be used in these future missions.

20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: math
32
The categories of this paper are: atom-ph
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The categories of this paper are: nlin