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CORR
2008
Springer
129views Education» more  CORR 2008»
15 years 6 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
CASC
2006
Springer
106views Mathematics» more  CASC 2006»
15 years 10 months ago
Simplicial Perturbation Techniques and Effective Homology
In this paper, we deal with the problem of the computation of the homology of a finite simplicial complex after an "elementary simplicial perturbation" process such as th...
Rocío González-Díaz, Bel&eacu...
CIE
2008
Springer
15 years 6 months ago
First-Order Model Checking Problems Parameterized by the Model
We study the complexity of the model checking problem, for fixed models A, over certain fragments L of first-order logic, obtained by restricting which of the quantifiers and boole...
Barnaby Martin
171
Voted
COCO
2001
Springer
135views Algorithms» more  COCO 2001»
15 years 11 months ago
Simple Analysis of Graph Tests for Linearity and PCP
We give a simple analysis of the PCP with low amortized query complexity of Samorodnitsky and Trevisan [16]. The analysis also applies to the linearity testing over finite field...
Johan Håstad, Avi Wigderson
CORR
2008
Springer
77views Education» more  CORR 2008»
15 years 6 months ago
Principal Graphs and Manifolds
In many physical statistical, biological and other investigations it is desirable to approximate a system of points by objects of lower dimension and/or complexity. For this purpo...
Alexander N. Gorban, Andrei Yu. Zinovyev