Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Morphological classification of compact and extended radio galaxies
  using convolutional neural networks and data augmentation techniques   Machine learning techniques have been increasingly used in astronomical
applications and have proven to successfully classify objects in image data
with high accuracy. The current work uses archival data from the Faint Images
of the Radio Sky at Twenty Centimeters (FIRST) to classify radio galaxies into
four classes: Fanaroff-Riley Class I (FRI), Fanaroff-Riley Class II (FRII),
Bent-Tailed (BENT), and Compact (COMPT). The model presented in this work is
based on Convolutional Neural Networks (CNNs). The proposed architecture
comprises three parallel blocks of convolutional layers combined and processed
for final classification by two feed-forward layers. Our model classified
selected classes of radio galaxy sources on an independent testing subset with
an average of 96\% for precision, recall, and F1 score. The best selected
augmentation techniques were rotations, horizontal or vertical flips, and
increase of brightness. Shifts, zoom and decrease of brightness worsened the
performance of the model. The current results show that model developed in this
work is able to identify different morphological classes of radio galaxies with
a high efficiency and performance

31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: econ
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: comp-gas