422 search results - page 14 / 85 » Shortest paths between shortest paths and independent sets |
CATA
2004
13 years 9 months ago
2004
We investigate a variant of the Fixed Charge Shortest Paths problem which enumerates the sequence of optimal solutions that arise as the focus shifts from the fixed cost parameter...
CORR
2010
Springer
13 years 4 months ago
2010
Springer
Abstract. CAT(0) metric spaces constitute a far-reaching common generalization of Euclidean and hyperbolic spaces and simple polygons: any two points x and y of a CAT(0) metric spa...
ICALT
2006
IEEE
14 years 1 months ago
2006
IEEE
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...
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...
FOCS
1994
IEEE
13 years 11 months ago
1994
IEEE
We describe algorithms for finding the k shortest paths connecting a given pair of vertices in a digraph (allowing cycles). Our algorithms output an implicit representation of the...