Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Individual discrimination of freely swimming pulse-type electric fish
  from electrode array recordings   Pulse-type weakly electric fishes communicate through electrical discharges
with a stereotyped waveform, varying solely the interval between pulses
according to the information being transmitted. This simple codification
mechanism is similar to the one found in various known neuronal circuits, which
renders these animals as good models for the study of natural communication
systems, allowing experiments involving behavioral and neuroethological
aspects. Performing analysis of data collected from more than one freely
swimming fish is a challenge since the detected electric organ discharge (EOD)
patterns are dependent on each animal's position and orientation relative to
the electrodes. However, since each fish emits a characteristic EOD waveform,
computational tools can be employed to match each EOD to the respective fish.
In this paper we describe a computational method able to recognize fish EODs
from dyads using normalized feature vectors obtained by applying Fourier and
dual-tree complex wavelet packet transforms. We employ support vector machines
as classifiers, and a continuity constraint algorithm allows us to solve issues
caused by overlapping EODs and signal saturation. Extensive validation
procedures with Gymnotus sp. showed that EODs can be assigned correctly to each
fish with only two errors per million discharges.

35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th