Shortest paths in signed graphs - Hansen - 1984 () Citation Context ...bel algorithm, a generalized version of the Dijkstra algorithm for computing shortest positive/negative paths in �-metric. It delivers exact results in polynomial time if the signed graph is acyclic (=-=Hansen, 1984-=-...
Reconfiguring Shortest Paths in Graphs 来自 Springer 喜欢 0 阅读量: 2 作者:K Gajjar,AV Jha,M Kumar,A Lahiri 摘要: Reconfiguring two shortest paths in a graph means modifying one shortest path to the other by changing one vertex at a time so that all the intermediate paths are also ...
External Memory Algorithms for Diameter and All-Pairs Shortest-Paths on Sparse Graphs Directed planar DFS is studied in [8], and an optimal O(N 2 /B)-I/O all-pairs shortest path algorithm is presented in =-=[4]-=-. Recently, a number of cache-oblivious graph algorithms have been obta...
Given an n n -vertex planar directed graph with real edge lengths and with no negative cycles, we show how to compute single-source shortest path distances in the graph in O(n\log^2n/\log\log n) O(n\log^2n/\log\log n) time with O(n) space. This is an improvement of a recent...
We consider the problem of preprocessing an n-vertex digraph with real edge weights so that subsequent queries for the shortest path or distance between an... CCD Zaroliagis - 《Theoretical Computer Science》 被引量: 152发表: 1998年 On shortest disjoint paths in planar graphs We present an al...
Graph theory is one of those things in the computer science field that has the stigma of being extremely hard and near impossible to understand. My goal for this post is to introduce you to graph theory and show you one approach to finding the shortest path in a graph using Dijkstra's Al...
//path.java//demonstrates shortest path with weighted, directed graphs//to run this program: C>java PathApp///classDistPar//distance and parent{//items stored in sPath arraypublicintdistance;//distance from start to this vertexpublicintparentVert;//current parent of this vertex//---publicDist...
华中科技大学离散数学Shortest Paths by Aihua for ACM.pdf,Shortest Paths 0 8 A 4 2 8 2 3 7 1 B C D 3 9 5 8 2 5 E F 1 Outline and Reading Weighted graphs Shortest path problem Shortest path properties Dijkstra’s algorithm Algorithm Edge rela
Graph path order refers to the order of data in the output path. The output path order always starts at the nonrecursive part of the pattern followed by the nodes/edges that appear in the recursive part. The order in which the graph is traversed during query optimization/execution has ...
We propose data structures for maintaining shortest path in planar graphs in which the weight of an edge is modified. Our data structures allow us to compu... E Feuerstein,A Marchetti-Spaccamela - International Workshop on Graph-theoretic Concepts in Computer Science 被引量: 96发表: 1992年 An...