https://deep-learning-study.tistory.com/731
https://rauleun.github.io/SimCLR
https://greeksharifa.github.io/machine_learning/2021/12/09/Constrastive-Learning/
https://www.youtube.com/watch?v=uDLJiG39Pto
https://teang1995.tistory.com/10
http://dsba.korea.ac.kr/seminar/?mod=document&uid=1448
==> slides ppt
https://gbjeong96.tistory.com/53