1 min readJan 23, 2018
Hi Xiangcao, thanks for your comment! And you are right! I changed (3) to Si*(Kronecker_D_ij - Sj) from y_hat - y.
Hi Xiangcao, thanks for your comment! And you are right! I changed (3) to Si*(Kronecker_D_ij - Sj) from y_hat - y.
Engineer. Love teaching math concepts intuitively. https://www.youtube.com/@DevJourney101