Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffuse to fuse EEG spectra -- intrinsic geometry of sleep dynamics for
  classification   We propose a novel algorithm for sleep dynamics visualization and automatic
annotation by applying diffusion geometry based sensor fusion algorithm to fuse
spectral information from two electroencephalograms (EEG). The diffusion
geometry approach helps organize the nonlinear dynamical structure hidden in
the EEG signal. The visualization is achieved by the nonlinear dimension
reduction capability of the chosen diffusion geometry algorithms. For the
automatic annotation purpose, the {support vector machine} is trained to
predict the sleep stage. The prediction performance is validated on a publicly
available benchmark database, Physionet Sleep-EDF [extended] SC$^*$ {(SC =
Sleep Cassette)} and ST$^*$ {(ST = Sleep Telemetry)}, with the
leave-one-subject-out cross validation. When we have a single EEG channel
(Fpz-Cz), the overall accuracy, macro F1 and Cohen's kappa achieve
$82.72\%$,$75.91\%$ and $76.1\%$ respectively in Sleep-EDF SC$^*$ and
$78.63\%$, $73.58\%$ and $69.48\%$ in Sleep-EDF ST$^*$. This performance is
compatible {with} the state-of-the-art results. When we have two EEG channels
(Fpz-Cz and Pz-Oz), the overall accuracy, macro F1 and Cohen's kappa achieve
$84.44\%$,$78.25\%$ and $78.36\%$ respectively in Sleep-EDF SC$^*$ and
$79.05\%$, $74.73\%$ and $70.31\%$ in Sleep-EDF ST$^*$. The results suggest the
potential of the proposed algorithm in practical applications.

17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio