1. School of Information & Communication Engineering, Chungbuk National University, Cheongju 28644, Republic of Korea
2. Department of Big Data, Chungbuk National University, Cheongju 28644, Republic of Korea
3. Department of Computer Engineering, Changwon National University, Changwon 51140, Republic of Korea
4. Department of Artificial Intelligence Convergence, Wonkwang University, Iksan 54538, Republic of Korea