Sung, Hanul
Min, Jeesoo
Ha, Sujin
Eom, Hyeonsang
Funding for this research was provided by:
Institute for the Information & communications Technology Promotion (IITP) Grant funded by the Korea government (MSIP) (R0190-16-2012, 2017-0-01733)
National Research Foundation of Korea (NRF-2016M3C4A7952587, NRF-2017R1A2B4004513, NRF-21A20151113068, NRF-2017M3C4A7083751)
Article History
Received: 7 January 2018
Revised: 23 May 2018
Accepted: 17 July 2018
First Online: 2 August 2018