Text this: Unbiased estimation of the gradient of the log-likelihood in inverse problems

 _    _      ___      ______    ______            
| \  / ||   / _ \\   /_   _//  /_   _//     ___   
|  \/  ||  / //\ \\  `-| |,-    -| ||-     /   || 
| .  . || |  ___  ||   | ||     _| ||_    | [] || 
|_|\/|_|| |_||  |_||   |_||    /_____//    \__ || 
`-`  `-`  `-`   `-`    `-`'    `-----`      -|_|| 
                                             `-`