Greedy Coordinate Gradient

￼TL;DR: My notes on the “Greedy Coordinate Gradient”, first read from Zou, et al, 2023 1 , but slightly abstracted. Suppose we have the set &#x003A3; &#x0003D; &#x0007B; 1 &#x0002C; &#x02026; &#x0002C; N &#x0007D; , a function from sequences of n elements to a vector space: f : &#x003A3; n &#x02192; &#x0211D; n &#x000D7; d , and another one g : &#x0211D; n &#x000D7; d &#x02192; &#x0211D; &#x02265;…