270 search results - page 48 / 54 » Diameter bounds for planar graphs |
ISBRA
2009
Springer
14 years 3 months ago
2009
Springer
A tanglegram is a pair of trees on the same set of leaves with matching leaves in the two trees joined by an edge. Tanglegrams are widely used in biology – to compare evolutiona...
STACS
2009
Springer
14 years 3 months ago
2009
Springer
The notions of hypertree width and generalized hypertree width were introduced by Gottlob, Leone, and Scarcello in order to extend the concept of hypergraph acyclicity. These noti...
FOCS
2006
IEEE
14 years 2 months ago
2006
IEEE
Spin systems are a general way to describe local interactions between nodes in a graph. In statistical mechanics, spin systems are often used as a model for physical systems. In c...
APPROX
2010
Springer
13 years 10 months ago
2010
Springer
Abstract. We provide improved approximation algorithms for the minmax generalization problems considered by Du, Eppstein, Goodrich, and Lueker [1]. In min-max generalization proble...
COMGEO
2010
ACM
13 years 8 months ago
2010
ACM
We study the complexity and the I/O-efficient computation of flow on triangulated terrains. We present an acyclic graph, the descent graph, that enables us to trace flow paths in ...