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FCT
1993
Springer
15 years 1 months ago
Generalized Topological Sorting in Linear Time
The generalized topological sorting problem takes as input a positive integer k and a directed, acyclic graph with some vertices labeled by positive integers, and the goal is to la...
Torben Hagerup, Martin Maas
PLDI
1994
ACM
15 years 1 months ago
The Program Structure Tree: Computing Control Regions in Linear Time
In this paper, we describe the program structure tree (PST), a hierarchical representation of program structure based on single entry single exit (SESE) regions of the control flo...
Richard Johnson, David Pearson, Keshav Pingali
CORR
2008
Springer
129views Education» more  CORR 2008»
14 years 9 months ago
Linear Time Encoding of LDPC Codes
Abstract--In this paper, we propose a linear complexity encoding method for arbitrary LDPC codes. We start from a simple graph-based encoding method "label-and-decide." W...
Jin Lu, José M. F. Moura
WADS
2007
Springer
165views Algorithms» more  WADS 2007»
15 years 3 months ago
A Near Linear Time Approximation Scheme for Steiner Tree Among Obstacles in the Plane
We present a polynomial-time approximation scheme (PTAS) for the Steiner tree problem with polygonal obstacles in the plane with running time O(n log2 n), where n denotes the numb...
Matthias Müller-Hannemann, Siamak Tazari
ICALP
1997
Springer
15 years 1 months ago
Constructive Linear Time Algorithms for Branchwidth
We prove that, for any fixed k, one can construct a linear time algorithm that checks if a graph has branchwidth≤ k and, if so, outputs a branch decomposition of minimum width....
Hans L. Bodlaender, Dimitrios M. Thilikos