Affiliation: | a) Information Systems Examination Team, Korean Intellectual Property Office (KIPO), Gov. Complex Daejeon Bldg.4 920 Dunsandong, Seogu, Daejeon, Republic of Korea; b) School of Information and Mechatronics, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwanju, Republic of Korea;c) College of Humanities and Social Sciences, Woosuk University 490 Hujung-Ri, Samrye-Eup, Wanju-Gun, Jeollabuk-Do, Republic of Korea |