743 search results - page 94 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
COMPGEOM
2011
ACM
12 years 11 months ago
2011
ACM
Many real-world data sets can be viewed of as noisy samples of special types of metric spaces called metric graphs [16]. Building on the notions of correspondence and GromovHausdo...
WWW
2010
ACM
14 years 2 months ago
2010
ACM
Detecting clusters or communities in large real-world graphs such as large social or information networks is a problem of considerable interest. In practice, one typically chooses...
APPROX
2011
Springer
12 years 8 months ago
2011
Springer
Abstract. We study the space complexity of randomized streaming algorithms that provide one-sided approximation guarantees; e.g., the algorithm always returns an overestimate of th...
SPAA
2004
ACM
14 years 1 months ago
2004
ACM
Given a general graph G, a fundamental problem is to find a spanning tree H that best approximates G by some measure. Often this measure is some combination of the congestion and...
APPROX
2009
Springer
14 years 2 months ago
2009
Springer
We consider adding k shortcut edges (i.e. edges of small fixed length δ ≥ 0) to a graph so as to minimize the weighted average shortest path distance over all pairs of vertices...