Results 11 to 20 of about 127,164 (309)

Stopping set analysis of repeat multiple-accumulate codes

open access: yes2009 IEEE International Symposium on Information Theory, 2009
In this work, we consider a stopping set analysis of repeat multiple-accumulate (RMA) code ensembles formed by the serial concatenation of a repetition code with multiple accumulators. The RMA codes are assumed to be iteratively decoded in a constituent code oriented fashion using maximum a posteriori erasure correction in the constituent codes.
Eirik Rosnes, Alexandre Graell i Amat
openaire   +2 more sources

On the Hardness of Approximating Stopping and Trapping Sets [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
We prove that approximating the size of stopping and trapping sets in Tanner graphs of linear block codes, and more restrictively, the class of low-density parity-check (LDPC) codes, is NP-hard. The ramifications of our findings are that methods used for estimating the height of the error-floor of moderate- and long-length LDPC codes, based on stopping
Mcgregor, A, Milenkovic, O
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On the Stopping Distance of SA-LDPC Codes by Transversal Designs

open access: yesIEEE Access, 2018
In this paper, we analyze the size of the smallest stopping set (called the stopping distance) for the parity-check matrix of a superposed array low-density parity-check (SA-LDPC) code for column weights 3 and 4 by using the transversal design (TD ...
Zahra Ferdosi   +2 more
doaj   +1 more source

Los valores del juego de parada óptima para medias aritméticas de variables de Bernoulli

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
We study optimal stopping problems for generalized averages of identically distributed Bernoulli variables, taking values in the set D = {d0, d1}. We obtain a recurrent formula in the finite horizon case, which gives the value of the game in terms of ...
Jaime Lobo Segura, Santiago Cambronero
doaj   +1 more source

Métodos no estándar en el problema de la parada óptima

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
We analize the optimal-stopping ploblem by the use of non standard analysis techniques. Using the non standard concept of quasi-optimal time, we prove the existence of optimal times for the problems of finite and infinite horizon .
Jaime Lobo Segura
doaj   +1 more source

Optimal stopping in predictable setting

open access: yesProbability, Uncertainty and Quantitative Risk, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bouhadou, Siham   +2 more
openaire   +2 more sources

Robust Active Contour Model Guided by Local Binary Pattern Stopping Function

open access: yesCybernetics and Information Technologies, 2017
Edge based active contour models are adequate to some extent in segmenting images with intensity inhomogeneity but often fail when applied to images with poorly defined or noisy boundaries.
Azizi Abdallah   +2 more
doaj   +1 more source

Optimization of starting and stopping technology for coal flow system of coal preparation plant

open access: yesGong-kuang zidonghua, 2018
For problems of long starting and stopping time and large power consumption existed in current starting and stopping technology for coal flow system of coal preparation plant, an optimization scheme of starting and stopping technology for coal flow ...
ZHOU Chengjun, ZHANG Xinming, TAO Yadong
doaj   +1 more source

STOP TALKING ! Inhibition of speech is affected by word frequency and dysfunctional impulsivity

open access: yesFrontiers in Psychology, 2010
Speaking is a complex natural behavior that most people master very well. Nevertheless, systematic investigation of the factors that affect adaptive control over speech production is relatively scarce.
Wery Van Den Wildenberg   +1 more
doaj   +1 more source

Early Stopping without a Validation Set

open access: yesCoRR, 2017
16 pages, 10 ...
Maren Mahsereci   +3 more
openaire   +2 more sources

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