نتایج جستجو برای: experimental design

تعداد نتایج: 1575195  

Journal: :Computational Statistics & Data Analysis 2014
Alex J. Gutman Edward D. White Dennis K. J. Lin Raymond R. Hill

Amethodology is developed to add runs to existing supersaturated designs. The technique uses information from the analysis of the initial experiment to choose the best possible follow-up runs. After analysis of the initial data, factors are classified into one of three groups: primary, secondary, and potential. Runs are added to maximize a Bayesian D-optimality criterion to increase the informa...

Journal: :Social work 2004
Edna Comer Andrea Meier Maeda J Galinsky

Rothman and Thomas' intervention research (IR) paradigm provides an alternative, developmental research method that is appropriate for practice research, especially at the early stages. It is more flexible than conventional experimental designs, capitalizes on the availability of small samples, accommodates the dynamism and variation in practice conditions and diverse populations, and explicitl...

2011
Jianjun Hu Tingzhou Lei Shengqiang Shen

This research provides an optimal design of structural parameters for ring-die granulators used in the cool briquetting process. Experimental research on the briquetting rate of pellets was carried out for three kinds of crop straws with different granularities, moisture ratios, and lengthdiameter ratios of the die hole. Results showed that: when the swoop angle β was 45 and the diameter ratio ...

1999
Helena Karasti

This paper examines the collaborative activities of radiology practitioners, designers and fieldworker/researchers in a work practice oriented multiparty design intervention organised in connection to an experimental teleradiology project. Through an example of image comparison in radiologists' image interpretation the participants can be seen to co-construct shared understandings of radiology ...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2014
Sarah I Daniels Fenna C M Sillé Audrey Goldbaum Brenda Yee Ellen F Key Luoping Zhang Martyn T Smith Reuben Thomas

BACKGROUND Blood miRNAs are a new promising area of disease research, but variability in miRNA measurements may limit detection of true-positive findings. Here, we measured sources of miRNA variability and determine whether repeated measures can improve power to detect fold-change differences between comparison groups. METHODS Blood from healthy volunteers (N = 12) was collected at three time...

2017
Camila Bruder Luiz Eduardo Ribeiro-do-Valle

Testing contexts have been shown to critically influence experimental results in psychophysical studies. One of these contexts that show important modulation of the behavioral effects of different stimulatory conditions is the separate (blocked) or mixed presentation of these stimulatory conditions. The study presents evidence that the apparent discriminabilities of two target stimuli can chang...

Journal: :Trends in ecology & evolution 2014
Melania E Cristescu

DNA-based species identification, known as barcoding, transformed the traditional approach to the study of biodiversity science. The field is transitioning from barcoding individuals to metabarcoding communities. This revolution involves new sequencing technologies, bioinformatics pipelines, computational infrastructure, and experimental designs. In this dynamic genomics landscape, metabarcodin...

Journal: :Pattern Recognition Letters 2001
Richard Nock Marc Sebban

We re®ne the ®rst theorem of (R. bounding the error of the ADA DABOOST OOST boosting algorithm, to integrate Bayes risk. This suggests the signi®cant time savings could be obtained on some domains without damaging the solution. An applicative example is given in the ®eld of feature selection.

2009
Murray Aitkin

To assess the strength of evidence from the data for competing parameter values or competing models, it uses likelihood ratios between the parameter values or the models. To interpret the likelihood ratios it uses a Bayesian approach which requires in general only the non-informative priors that are widely used in posterior inference about model parameters, though it can accommodate informative...

Journal: :Information Fusion 2007
Philippe Smets Branko Ristic

The paper presents an approach to joint tracking and classification based on belief functions as understood in the transferable belief model (TBM). The TBM model is identical to the classical model except all probability functions are replaced by belief functions, which are more flexible for representing uncertainty. It is felt that the tracking phase is well handled by the classical Kalman fil...

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