Results 1 - 10 of 140

A Platform for Large-Scale Network Performance Analysis

by David Bauer, Garrett Yaun, Chris Carothers, Murat Yuksel, Shivkumar Kalyanaraman
"... Abstract — Performance analysis techniques are fundamental to aid the process of large-scale protocol design and network operations. There has been a tremendous explosion in the variety of tools and platforms available (eg: ns-2, SSFNet, Click Router toolkit, Emulab, Planetlab). However, we still lo ..."
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: Rocketfuel, CAIDA) and models (traffic, topology etc). This is a step towards the broader problem of understanding meta-simulation methodology, and speculate how we could integrate these tools with testbeds like Emulab and Planetlab. Examples of large-scale simulations (routing, TCP, multicast

DEVELOPING A META-METHODOLOGY FOR EFFICIENT SIMULATION OF INFOCOMMUNICATION SYSTEMS AND RELATED PROCESSES Synthesis of a Traditional Simulation Methodology with Extra Features Evaluation of Traditional Simulation Methodologies

by László Muka , Gábor Lencse
"... KEYWORDS simulation meta-methodology, dynamic simulation problem context, ICT, hard and soft-systems method, BP ABSTRACT The efficiency of simulation projects aimed to support the design of Information and Communication Technology (ICT) and related Business Process (BP) systems in an organisation i ..."
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KEYWORDS simulation meta-methodology, dynamic simulation problem context, ICT, hard and soft-systems method, BP ABSTRACT The efficiency of simulation projects aimed to support the design of Information and Communication Technology (ICT) and related Business Process (BP) systems in an organisation

A meta-model for specifying collaborative simulation

by Trong Khanh Nguyen, Nicolas Marilleau, Tuong Vinh Ho, Amal El, Fallah Seghrouchni , 2012
"... Abstract—Major researches in the domain of complex systems are interdisciplinary, collaborative and geographically distributed. The purpose of our work is to explore a new methodology that facilitates scientist’s interactions during the simulation process. Through the analysis of the collaboration a ..."
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Abstract—Major researches in the domain of complex systems are interdisciplinary, collaborative and geographically distributed. The purpose of our work is to explore a new methodology that facilitates scientist’s interactions during the simulation process. Through the analysis of the collaboration

Meta-Modeling Of A Cluster Tool Simulator

by David Ruppert Lee, Lee Schruben, Mike Freimer, Cornell Univesity , 2000
"... : We develop regression spline meta-models to predict the output of a cluster tool simulator. By proper selection of the predictor variables, it is often possible to find simple spline meta-models that predict the cluster tool output with very little error. The statistical meta-models have two uses ..."
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: We develop regression spline meta-models to predict the output of a cluster tool simulator. By proper selection of the predictor variables, it is often possible to find simple spline meta-models that predict the cluster tool output with very little error. The statistical meta-models have two

MetaSim—A Sequencing Simulator for Genomics and

by Daniel C. Richter, Felix Ott, Er F. Auch, Ramona Schmid, Daniel H. Huson , 2008
"... Background: The new research field of metagenomics is providing exciting insights into various, previously unclassified ecological systems. Next-generation sequencing technologies are producing a rapid increase of environmental data in public databases. There is great need for specialized software s ..."
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solutions and statistical methods for dealing with complex metagenome data sets. Methodology/Principal Findings: To facilitate the development and improvement of metagenomic tools and the planning of metagenomic projects, we introduce a sequencing simulator called MetaSim. Our software can be used

METHODOLOGY Open Access Risk of bias: a simulation study of power to detect study-level moderator effects in meta-analysis

by Susanne Hempel, Jeremy Nv Miles, Marika J Booth, Zhen Wang, Sally C Morton, Paul G Shekelle
"... Background: There are both theoretical and empirical reasons to believe that design and execution factors are associated with bias in controlled trials. Statistically significant moderator effects, such as the effect of trial quality on treatment effect sizes, are rarely detected in individual meta- ..."
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-Carlo simulations and investigated the effect of number of trials, trial sample size, moderator effect size, heterogeneity, and moderator distribution on power to detect moderator effects. The simulations provide a reference guide for investigators to estimate power when planning meta-regressions. Results

The Potential in Simulations and Meta- Modelling for Understanding and Development of NDE

by Peter Hammersberg, Gert Persson, Håkan Wirdelius
"... Abstract. By combining detailed mathematical modelling of the physics in NDE with a broader robust engineering approach based on the sequential steps: screening, modelling and optimization, it would be possible to generate meta-models that can support the NDE Engineering efforts to evaluate NDE appl ..."
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Abstract. By combining detailed mathematical modelling of the physics in NDE with a broader robust engineering approach based on the sequential steps: screening, modelling and optimization, it would be possible to generate meta-models that can support the NDE Engineering efforts to evaluate NDE

METHODOLOGY ARTICLE Open Access

by unknown authors
"... Meta-analysis based on weighted ordered P-values for genomic data with heterogeneity Yihan Li and Debashis Ghosh* Background: Meta-analysis has become increasingly popular in recent years, especially in genomic data analysis, due to the fast growth of available data and studies that target the same ..."
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methodology by several meta-analysis of gene expression data. Conclusions: Our proposed weighted ordered p-value (WOP) methods displayed better performance compared to existing methods for testing the hypothesis that there is signal in the majority of studies. They also appeared to be much more robust

METHODOLOGY ARTICLE Open Access

by Missing Replicates, Fan Shi, Gad Abraham, Christopher Leckie, Izhak Haviv, Adam Kowalczyk
"... Background: Many different microarray experiments are publicly available today. It is natural to ask whether different experiments for the same phenotypic conditions can be combined using meta-analysis, in order to increase the overall sample size. However, some genes are not measured in all experim ..."
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their significance in two groups of experiments. We first apply the Incomplete Gene Meta-analysis and several comparable methods to five breast cancer datasets with an identical set of probes. We simulate incomplete genes by randomly removing a subset of probes from each dataset and demonstrate that our method

Concurrent Execution Semantics and Sequential Simulation Algorithms for the Metropolis Meta-Model

by Felice Balarin, Luciano Lavagno, Claudio Passerone, Alberto Sangiovanni-Vincentelli , Yosinori Watanabe, Guang Yang - In Proc. CODES'02 , 2002
"... This paper presents the simulation techniques that are available in Metropolis, an inter-disciplinary research project that develops a design methodology, supported by a comprehensive design environment and tool set, for embedded systems. System behavior is non-deterministic in general, especially i ..."
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This paper presents the simulation techniques that are available in Metropolis, an inter-disciplinary research project that develops a design methodology, supported by a comprehensive design environment and tool set, for embedded systems. System behavior is non-deterministic in general, especially
Results 1 - 10 of 140