In this study, we investigate the suitability of
functional near-infrared spectroscopy signals (fNIRS) for person identification
using data visualization and machine learning algorithms. We first applied two
linear dimension reduction algorithms: Principle Component Analysis (PCA) and
Singular Value Decomposition (SVD) in order to reduce the dimensionality of the
fNIRS data. We then inspected the clustering of samples in a 2d space using a
nonlinear projection algorithm. We observed with the SVD projection that the
data integrity associated with each person is high in the reduced space. In the
light of these observations, we implemented a random forest algorithm as a
baseline model and a fully connected deep neural network (FCDNN) as the primary
model to identify person from their brain signals. We obtained %85.16 accuracy
with our FCDNN model using SVD reduction. Our results are in parallel with the
neuroscience researches, which state that brain signals of each person are
unique and can be used to identify a person.
functional near-infrared spectroscopy (fNIRS) person identification PCA SVD fully connected deep neural network random forest
Primary Language | English |
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Journal Section | Review Articles |
Authors | |
Publication Date | December 21, 2017 |
Submission Date | October 18, 2017 |
Acceptance Date | December 20, 2017 |
Published in Issue | Year 2017 Volume: 59 Issue: 2 |
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering
This work is licensed under a Creative Commons Attribution 4.0 International License.