115 search results - page 7 / 23 » Approximation Algorithms for Shortest Descending Paths in Te... |
COCOON
2001
Springer
13 years 12 months ago
2001
Springer
We present a simple space saving trick that applies to many previous algorithms for transitive closure and shortest paths in dynamic directed graphs. In these problems, an update c...
ESA
2000
Springer
13 years 11 months ago
2000
Springer
The resource constrained shortest path problem (CSP) asks for the computation of a least cost path obeying a set of resource constraints. The problem is NP-complete. We give theore...
ICCSA
2004
Springer
14 years 24 days ago
2004
Springer
Abstract. Given a simple n-sided polygon in the plane with a boundary partitioned into subchains some of which are convex and colored, we consider the following problem: Which is t...
STOC
2002
ACM
14 years 7 months ago
2002
ACM
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...
JAL
2007
13 years 7 months ago
2007
Abstract. We consider the problem of estimating the length of a shortest path in a DAG whose edge lengths are known only approximately but can be determined exactly at a cost. Init...