DSAI_2021_HW04 Report Link: https://hackmd.io/@StevenHHChen/dsai_2021_hw4_stch https://docs.google.com/presentation/d/1jHs-poRrvScIr5I-BfU5ej0dFKiVmL_NbMywTLvhbDo/edit?usp=sharing