Title
Application of Time-Scale Decomposition of Entropy for Eye Movement Analysis
Abstract
The methods for nonlinear time series analysis were used in the presented research to reveal eye movement signal characteristics. Three measures were used: approximate entropy, fuzzy entropy, and the Largest Lyapunov Exponent, for which the multilevel maps (MMs), being their time-scale decomposition, were defined. To check whether the estimated characteristics might be useful in eye movement events detection, these structures were applied in the classification process conducted with the usage of the kNN method. The elements of three MMs were used to define feature vectors for this process. They consisted of differently combined MM segments, belonging either to one or several selected levels, as well as included values either of one or all the analysed measures. Such a classification produced an improvement in the accuracy for saccadic latency and saccade, when compared with the previously conducted studies using eye movement dynamics.
Year
DOI
Venue
2020
10.3390/e22020168
ENTROPY
Keywords
Field
DocType
eye movement events detection,nonlinear analysis time series analysis,approximate entropy,fuzzy entropy,multilevel entropy map,time-scale decomposition
Mathematical optimization,Feature vector,Approximate entropy,Algorithm,Fuzzy entropy,Eye movement,Nonlinear time series analysis,Time scale decomposition,Saccade,Lyapunov exponent,Mathematics
Journal
Volume
Issue
ISSN
22
2
1099-4300
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Katarzyna Harezlak14511.59
Pawel Kasprowski27612.99