Abstract: The log-sum function as a penalty has always been drawing widespread attention in the field of sparse problems. However, it brings a non-convex, non-smooth and non-Lipschitz optimization ...

Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

As the formula is dynamic, if there's any changes to the original data, it's going to update automatically. We'll also see how well it generates new data, and finally we'll go over the key limitations ...