1Institute of IT Convergence Technology, Seoul National University of Science and Technology, Seoul, Republic of South Korea 2Department of Information Systems, Hanyang University, Seoul, Republic of South Korea 3Department of Artificial Intelligence, Hanyang University, Seoul, Republic of South Korea DOI 10.7717/peerj-cs.3795 Academic Editor Davide Chicco Subject Areas Algorithms and Analysis of Algorithms, Artificial Intelligence, Data Mining and Machine Learning, Data Science, Neural...