Keio University, Department of Mechanical Engineering, 3-14-1 Hiyoshi, Kohoku-Ku, Yokohama, Kanagawa 223-8522, Japan ...

There is a new sorting algorithm a deterministic O(m log2/3 n)-time algorithm for single-source shortest paths (SSSP) on directed graphs with real non-negative edge weights in the comparison-addition ...

If you want to solve a tricky problem, it often helps to get organized. You might, for example, break the problem into pieces and tackle the easiest pieces first. But this kind of sorting has a cost.

In the Dijkstra algorithm, when a shorter path to a neighbor is found, the neighbor's priority in the priority queue should be updated regardless of whether it is already present in the queue. In this ...

I believe the time complexity analysis is wrong under Approach 1: Dijkstra's Algorithm. It states that "each node is added to the queue at most once", but that is not true for the current given python ...

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