◎ Reviewer of The 26th International Conference on Technologies and Applications of Artificial Intelligence (TAAI 2021), Ref. code: #37, #108,  Taichung, Taiwan, Nov. 18-20, 2021. (EI)

◎ Reviewer of The 2021 International Automatic Control Conference (CACS 2021) , Ref. code: #1005, #1024, #1093, Chiayi, Taiwan, Nov. 3-6, 2021. (EI)

◎ Reviewer of The 12th International Conference on ICT Convergence (ICTC 2021), Ref. code:#1570741105, #1570754546, #1570754004, #1570748880, #1570756691, #1570750041,  Jeju Island, Korea,  Oct.20-22, 2021. (EI)

◎ Reviewer of the 1st International Conference on Electronic and Electrical Engineering and Intelligent System (ICE3IS 2021), Ref. code:#1570726638,  Yogyakarta, Indonesia, Oct. 15 - 16, 2021. (EI)

◎ Reviewer of 2021 International Conference on Advanced Technologies for Communications (ATC 2021), Ref. code:#1570733516, #1570733758, #1570741567,  Ho Chi Minh City, Vietnam, Oct. 14 - 16, 2021. (EI)

◎ Reviewer of The 2021 Twelfth International Conference on Ubiquitous and Future Networks (ICUFN 2021), Ref. code: #1570708900, #1570730109, #1570730143, Jeju Island, Korea, Aug. 17- 20, 2021. (EI)

◎ Reviewer of The 2021 2nd International Conference on Information Technology, Advanced Mechanical and Electrical Engineering (ICITAMEE 2021), Ref. code: #1570731185, #1570726632, Yogyakarta, Indonesia, Aug. 25-26, 2021. (EI)

◎ Reviewer of The Third International Conference on AI in information and communication (ICAIIC 2021), Ref. code: #1570700673, #1570698337, #1570697685, Jeju island, Korea, Apr. 13 - 16, 2021. (EI)

◎ Reviewer of 2021 International Symposium on Electrical and Electronics Engineering (ISEE 2021), Ref. code: #1570696597, ##1570697787, #1570697788, Ho Chi Minh City, Vietnam, April 15-16, 2021(EI)

◎ Reviewer of The 35th International Conference on Information Networking (ICOIN 2021), Ref. code: #1570669804, #1570669751 , #1570686859, Jeju island, Korea, Jan. 13 - 16, 2021. (EI)