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» Switching Graphs and Their Complexity
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IPL
2010
115views more  IPL 2010»
13 years 8 months ago
Hardness and approximation of minimum distortion embeddings
We show that the problem of computing a minimum distortion embedding of a given graph into a path remains NP-hard when the input graph is restricted to a bipartite, cobipartite, o...
Pinar Heggernes, Daniel Meister
VISUALIZATION
1996
IEEE
14 years 2 months ago
Visualization of Complex Models Using Dynamic Texture-based Simplification
We are investigating methods for simplifying complex models for interactive visualizations using texture-based representations. This paper presents a simplification method which d...
Daniel G. Aliaga
SODA
2003
ACM
138views Algorithms» more  SODA 2003»
13 years 11 months ago
Multirate rearrangeable clos networks and a generalized edge coloring problem on bipartite graphs
Chung and Ross (SIAM J. Comput., 20, 1991) conjectured that the minimum number m(n, r) of middle-state switches for the symmetric 3-stage Clos network C(n, m(n, r), r) to be rearr...
Hung Q. Ngo, Van H. Vu
ESA
2001
Springer
105views Algorithms» more  ESA 2001»
14 years 2 months ago
On the Parameterized Complexity of Layered Graph Drawing
We consider graph drawings in which vertices are assigned to layers and edges are drawn as straight line-segments between vertices on adjacent layers. We prove that graphs admittin...
Vida Dujmovic, Michael R. Fellows, Michael T. Hall...
STACS
2010
Springer
14 years 1 months ago
The Complexity of the List Homomorphism Problem for Graphs
We completely characterise the computational complexity of the list homomorphism problem for graphs in combinatorial and algebraic terms: for every graph H the problem is either N...
László Egri, Andrei A. Krokhin, Beno...