In an interview toward the end of his life, Dijkstra credited his algorithm’s enduring appeal in part to its unusual origin story. “Without pencil and paper you are almost forced to avoid all ...

Multiresolution priority queues are recently introduced data structures that can trade-off a small bounded error for faster performance. When used to implement ...

The “graph drawing” form of output draws the least-cost paths tree from the source vertex to every other vertex that can be reached from it. (All edges are drawn; edges in the least-cost paths tree ...

In algorithms, as in life, negativity can be a drag. Consider the problem of finding the shortest path between two points on a graph — a network of nodes connected by links, or edges. Often, these ...

The graph generator dialog box (if you choose to use that) sometimes opens in the background. This is a bug, which I haven’t fully fixed yet. It is not always immediately clear when you need to scroll ...