17 search results - page 4 / 4 » Solving the Replacement Paths Problem for Planar Directed Gr... |
STACS
2007
Springer
13 years 11 months ago
2007
Springer
We consider the problem of computing an approximate minimum cycle basis of an undirected non-negative edge-weighted graph G with m edges and n vertices; the extension to directed ...
ICDT
2009
ACM
14 years 6 months ago
2009
ACM
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...