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Statistical and machine learning methods for classification of episodic memory

Basic Knezevic, Damir and Heimerson, Albin (2018)
Department of Automatic Control
Abstract
Multiple modern methods of statistical feature extraction and machine learning are applied to classification of encoding and retrieval of episodic memories using electroencephalogram (EEG) recordings. Raw data, different time-frequency methods, and multiclass common spatial patterns are used for statistical feature extraction. For each type of feature extraction multiple machine learning algorithms are tested and compared. Classification accuracies of up to 82 % are reached with one-dimensional convolutional neural networks on raw data. It is found that more complex and time-consuming classifiers generally improve the accuracy. However, the features chosen are the main factor deciding the accuracy. A novel idea for designing an... (More)
Multiple modern methods of statistical feature extraction and machine learning are applied to classification of encoding and retrieval of episodic memories using electroencephalogram (EEG) recordings. Raw data, different time-frequency methods, and multiclass common spatial patterns are used for statistical feature extraction. For each type of feature extraction multiple machine learning algorithms are tested and compared. Classification accuracies of up to 82 % are reached with one-dimensional convolutional neural networks on raw data. It is found that more complex and time-consuming classifiers generally improve the accuracy. However, the features chosen are the main factor deciding the accuracy. A novel idea for designing an encoding-retrieval classifier is discussed and implemented. In spite of having multiple different designs, almost all classifier combinations involving the retrieval data fail to reach significant classification levels. (Less)
Please use this url to cite or link to this publication:
author
Basic Knezevic, Damir and Heimerson, Albin
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
report number
TFRT-6056
ISSN
0280-5316
language
English
id
8953710
date added to LUP
2018-06-29 12:16:50
date last changed
2018-06-29 12:16:50
@misc{8953710,
  abstract     = {{Multiple modern methods of statistical feature extraction and machine learning are applied to classification of encoding and retrieval of episodic memories using electroencephalogram (EEG) recordings. Raw data, different time-frequency methods, and multiclass common spatial patterns are used for statistical feature extraction. For each type of feature extraction multiple machine learning algorithms are tested and compared. Classification accuracies of up to 82 % are reached with one-dimensional convolutional neural networks on raw data. It is found that more complex and time-consuming classifiers generally improve the accuracy. However, the features chosen are the main factor deciding the accuracy. A novel idea for designing an encoding-retrieval classifier is discussed and implemented. In spite of having multiple different designs, almost all classifier combinations involving the retrieval data fail to reach significant classification levels.}},
  author       = {{Basic Knezevic, Damir and Heimerson, Albin}},
  issn         = {{0280-5316}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Statistical and machine learning methods for classification of episodic memory}},
  year         = {{2018}},
}