15 search results - page 3 / 3 » Approximating the Crossing Number of Toroidal Graphs |
ICTAI
2010
IEEE
13 years 3 months ago
2010
IEEE
The balanced graph partitioning consists in dividing the vertices of an undirected graph into a given number of subsets of approximately equal size, such that the number of edges c...
FOCS
2009
IEEE
13 years 12 months ago
2009
IEEE
— We show that for every fixed k, there is a linear time algorithm that decides whether or not a given graph has a vertex set X of order at most k such that G − X is planar (w...
SI3D
2003
ACM
13 years 10 months ago
2003
ACM
In this paper we develop an interactive 3D browser for large topographic maps using a visual display augmented by a haptic, or force feedback, display. The extreme size of our dat...
FOCS
2008
IEEE
13 years 11 months ago
2008
IEEE
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
STOC
2007
ACM
14 years 5 months ago
2007
ACM
We prove and extend a conjecture of Kempe, Kleinberg, and Tardos (KKT) on the spread of influence in social networks. A social network can be represented by a directed graph where...