Text this: Randomized gradient-free distributed online optimization via a dynamic regret analysis

 __   _    _    _    _    _     ______   ______   
| || | || | || | || | || | ||  /_   _// |      \\ 
| '--' || | || | || | || | ||   -| ||-  |  --  // 
| .--. || | \\_/ || | \\_/ ||   _| ||_  |  --  \\ 
|_|| |_||  \____//   \____//   /_____// |______// 
`-`  `-`    `---`     `---`    `-----`  `------`