Results 261 to 270 of about 1,964,027 (298)

The threshold contact process: a continuum limit

Probability Theory and Related Fields, 1996
In the threshold contact process on the \(d\)-dimensional integer lattice with range \(r\), healthy sites become infected at rate \(\lambda\) if they have at least one infected \(r\)-neighbour, and recover at rate 1. We show that the critical value \(\lambda_c (r)\) is asymptotic to \(r^{-d} \mu_c\) as \(r \to \infty\), where \(\mu_c\) is the critical ...
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Thermite Initiation Processes and Thresholds

MRS Proceedings, 2012
ABSTRACTThe objectives of this work are to characterize thermite initiation processes and thresholds, and to develop thermite reactive trains, where a sensitive nanothermite ignites an insensitive micron thermite, which produces little gas. Nanothermites, including Al/AgIO3, Al/Bi2O3, Al/MoO3, Al/Fe3O4, and Ti/AgIO3, were characterized for their ...
Curtis E. Johnson, Kelvin T. Higa, Thao T. Tran, W. Rick Albro   +3 more
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Learning processes in multilayer threshold nets

Biological Cybernetics, 1978
An algorithm of learning in multilayer threshold nets without feedbacks is proposed. The net is built of threshold elements with binary inputs. During a learning process each input vector chi is accompanied by a teacher's decision omega (omega epsilon(1,...,M)).
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Thresholding: A challenge for parallel processing

Computer Graphics and Image Processing, 1977
In the past the speed and low cost of parallel computation for image processing have often been emphasized. To give a sample of the possibilities of parallel processing, a typical task is assessed : image thresholding. We describe the performance of a sequential computer and of an existing parallel machine implementing algorithms which match the ...
L. Cordella, M.J.B. Duff, S. Levialdi
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Threshold Effects of Inequality on the Process of Economic Growth [PDF]

, 2015
This paper explores the relationship between inequality and growth in the context of a unified empirical approach suggested by the theoretical model of Galor and Moav (2004). Based on the model’s prediction, we construct a measure of human capital-to-physical capital ratio in order to investigate the threshold effects of inequality on economic growth ...
Arshad Ali Bhatti, M. Emranul Haque, Denise R. Osborn   +2 more
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In-Process Detection of Chatter Threshold

Journal of Engineering for Industry, 1988
This investigation is an attempt to propose a method to determine the chatter threshold precisely so that a flexible manufacturing system can be materialized or a dynamic performance test criteria for a machine tool can be established. It has been found that the chatter threshold can be easily detected through the in-process measurement of the ...
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THRESHOLD CHOICE IN IMAGE PROCESSING

AIP Conference Proceedings, 2011
The present work proposes a simple procedure to evaluate the efficiency of a given image processing technique applied to weld radiographs. Specifically, special attention is given to the problem of how to evaluate whether or not a threshold value was suitably set in order to preserve relevant image features.
Ro^mulo M. Almeida, Joao Marcos A. Rebello, Donald O. Thompson, Dale E. Chimenti   +3 more
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Hybrid and Dual-Processing Threshold Decision Models

2023
In the previous chapters, we presented various derivations of the threshold model based on the same disease outcomes. We assumed that a decision-maker would calculate the threshold based on either mortality or morbidity outcomes. Basinga and van den Ende derived the threshold by combining both mortality and morbidity outcomes.
Benjamin, Djulbegovic, Iztok, Hozo
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Join processing with threshold-based filtering in MapReduce

The Journal of Supercomputing, 2014
Data analytics, in particular those involving heterogeneous data, often require join operations on datasets collected from different sources. MapReduce, one of the most popular frameworks for large-scale data processing, is not suited for joining multiple datasets.
Taewhi Lee, Hye-Chan Bae, Hyoung-Joo Kim 0001   +2 more
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Optimality of Threshold Stopping Times for Diffusion Processes

Theory of Probability & Its Applications, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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