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» Engineering Shortest Path Algorithms
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STOC
2002
ACM
144views Algorithms» more  STOC 2002»
16 years 2 months ago
Improved decremental algorithms for maintaining transitive closure and all-pairs shortest paths
We present improved algorithms for maintaining transitive closure and all-pairs shortest paths/distances in a digraph under deletion of edges. For the problem of transitive closur...
Surender Baswana, Ramesh Hariharan, Sandeep Sen
139
Voted
FSTTCS
2010
Springer
14 years 11 months ago
Finding Sparser Directed Spanners
A spanner of a graph is a sparse subgraph that approximately preserves distances in the original graph. More precisely, a subgraph H = (V, EH ) is a k-spanner of a graph G = (V, E...
Piotr Berman, Sofya Raskhodnikova, Ge Ruan
ICALT
2006
IEEE
15 years 8 months ago
A Shortest Learning Path Selection Algorithm in E-learning
Generally speaking, in the e-learning systems, a course is modeled as a graph, where each node represents a knowledge node (KU) and two nodes are connected to form a semantic netw...
Chengling Zhao, Liyong Wan
WEA
2009
Springer
145views Algorithms» more  WEA 2009»
15 years 8 months ago
Batch Dynamic Single-Source Shortest-Path Algorithms: An Experimental Study
A dynamic shortest-path algorithm is called a batch algorithm if it is able to handle graph changes that consist of multiple edge updates at a time. In this paper we focus on fully...
Reinhard Bauer, Dorothea Wagner
WEA
2004
Springer
124views Algorithms» more  WEA 2004»
15 years 7 months ago
Experimental Studies of Symbolic Shortest-Path Algorithms
Abstract. Graphs can be represented symbolically by the Ordered Binary Decision Diagram (OBDD) of their characteristic function. To solve problems in such implicitly given graphs, ...
Daniel Sawitzki