And so they’ve developed algorithms that assign colors for them. These algorithms, however, are slow and had been “stuck more or less the same for the last 40 years,” said Sepehr Assadi, a computer ...

This graph cannot be colored with just three colors, but four will do the trick. Black dots denote that the pattern can be repeated on an infinite plane. (Image credit: Aubrey de Gray/arXiv/CC by 4.0) ...

Graph Coloring: The process of assigning colours to vertices or edges of a graph so that adjacent elements have distinct colours, commonly used in scheduling and resource allocation problems.

Graph coloring has been employed since the 1980s to efficiently compute sparse Jacobian and Hessian matrices using either finite differences or automatic differentiation. Several coloring problems ...