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 ...

This is a preview. Log in through your library . Abstract We consider the shortest paths between all pairs of nodes in a directed or undirected complete graph with edge lengths which are uniformly and ...

Mathematics of Operations Research, Vol. 16, No. 3 (Aug., 1991), pp. 580-595 (16 pages) We consider a stochastic version of the classical shortest path problem whereby for each node of a graph, we ...

Chinese computer scientists have solved a 40-year-old mathematics bottleneck, an advance that might help boost performance in hi-tech areas ranging from chip design and telecommunications to drone ...