https://meet.google.com/vyk-frhc-key
pdf
https://deeplearning.cs.cmu.edu/S23/document/homework/HW4/P2/HW4P2_S23.pdf
8/31: 일단 어떻게든 돌아가게 해 온다
9/7: 실험 해서 결과 잘 나오게