DiceDesignandDiceEval: TwoRPackages for Design and Analysis of Computer Experiments

Dupuy, Delphine; Helbert, Céline; Franco, Jessica

doi:10.18637/jss.v065.i11

Cited by 100 publications

(73 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The methodology employed is described in the DiceEval Rpackage (Dupuy et al, 2015) reference-manual. We considered K = 10 and compute the MSE between meta-model approximation and the k-fold observations for each fold (k times).…”

Section: The Validation Of the Chosen Type Of Meta-model: Training Setmentioning

confidence: 99%

Development of a methodological framework for the assessment of seismic induced tsunami hazard through uncertainty quantification: application to the Azores-Gibraltar Fracture Zone

Bacchi

Antoshchenkova

Jomard

et al. 2018

Preprint

View full text Add to dashboard Cite

Abstract. The aim of this study is to show how a numerical database constructed using "uncertainty quantification techniques" can be a useful tool for the analysis of the tsunamigenic potential of a seismic zone. This methodology mainly 10 relies on the construction and validation of some "emulators", or "meta-models", used instead of the original models in order to evaluate and quantify the uncertainty and the sensitivity of the tsunamis height at a given location to the seismic source parameters. The proposed approach was tested by building a numerical database of nearly 50,000 tsunamis scenarios generated by the Azores-Gibraltar Fracture Zone (AGFZ) and potentially impacting the French Atlantic Coast. This seismic area was chosen as test-case because of its complexity and the large uncertainty related to its characterization of 15 tsunamigenic earthquake sources. Finally, the tsunami hazard resulting from uncertainty quantification was presented and discussed with respect to the results which can be obtained with a more classical deterministic (or scenario-based) approach.It must be underlined that the results from this study are the illustration of a general methodology through a case study with simplified hypothesis, which is not an operational assessment of tsunami hazard along the French Atlantic Coast.

show abstract

Section: The Validation Of the Chosen Type Of Meta-model: Training Setmentioning

confidence: 99%

Development of a methodological framework for the assessment of seismic induced tsunami hazard through uncertainty quantification: application to the Azores-Gibraltar Fracture Zone

Bacchi

Antoshchenkova

Jomard

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…However, for a high-dimensional space, the distribution of points provided by LHS may deviate considerably from a uniform distribution (leading to high-discrepancy). Thus, an additional step of LHS optimization is performed, using the Enhanced Stochastic Evolutionary (ESE) algorithm provided in the DiceDesign package of R [21]. The kriging model trend is specified as a first order polynomial with a second order interactions.…”

Section: A Kriging Meta-model For Nominal(without-variation) Casementioning

confidence: 99%

Statistical Analysis and Comparison of 2T and 3T1D e-DRAM Minimum Energy Operation

Rana

Canal

Amat

et al. 2017

IEEE Trans. Device Mater. Relib.

View full text Add to dashboard Cite

Abstract-Bio-medical wearable devices restricted to their smallcapacity embedded-battery require energy-efficiency of the highest order. However, minimum-energy point (MEP) at sub-threshold voltages is unattainable with SRAM memory, which fails to hold below 0.3V because of its vanishing noise margins. This paper examines minimum-energy operation of 2T and 3T1D e-DRAM gain cells as an alternative to SRAM at 32nm technology node with different design points: up-sizing transistors, using high-Vth transistors, read/write wordline assists and temperature. First, the e-DRAM cells are evaluated without considering any process variations. The design-space is explored by creating a kriging meta-model to reduce the number of simulations. A full-factorial statistical analysis of e-DRAM cells is performed in presence of threshold voltage variations and the effect of upsizing on mean MEP is reported. Finally, it is shown that the product of the read and write lengths provides a knob for trade-off between energy-efficiency and reliable MEP energy operation.

show abstract

“…Four different variants are implemented in vdg -see ?LHS and the examples for more details. It is also possible to interface to other space-filling design implementations, such as those available in, for example, lhs (Carnell 2016) and DiceDesign (Dupuy, Helbert, and Franco 2015). An example is given in ?sampler.…”

Section: Sampling In Hypercubesmentioning

confidence: 99%

Flexible Graphical Assessment of Experimental Designs in R: The vdg Package

Schoonees¹,

Roux²,

Coetzer³

2016

J. Stat. Soft.

View full text Add to dashboard Cite

The R package vdg provides a flexible interface for producing various graphical summaries of the prediction variance associated with specific linear model specifications and experimental designs. These methods include variance dispersion graphs, fraction of design space plots and quantile plots which can assist in choosing between a catalogue of candidate experimental designs. Instead of restrictive optimization methods used in traditional software to explore design regions, vdg utilizes sampling methods to introduce more flexibility. The package takes advantage of R's modern graphical abilities via ggplot2 (Wickham 2009), adds facilities for using a variety of distance methods, allows for more flexible model specifications and incorporates quantile regressions to help with model comparison.

show abstract

DiceDesignandDiceEval: TwoRPackages for Design and Analysis of Computer Experiments

Cited by 100 publications

References 27 publications

Development of a methodological framework for the assessment of seismic induced tsunami hazard through uncertainty quantification: application to the Azores-Gibraltar Fracture Zone

Development of a methodological framework for the assessment of seismic induced tsunami hazard through uncertainty quantification: application to the Azores-Gibraltar Fracture Zone

Statistical Analysis and Comparison of 2T and 3T1D e-DRAM Minimum Energy Operation

Flexible Graphical Assessment of Experimental Designs in R: The vdg Package

Contact Info

Product

Resources

About