نتایج جستجو برای: randomization

تعداد نتایج: 14588  

Journal: :Journal of Risk and Uncertainty 2023

Abstract We examine preference for randomization, and link it to conflicting preference-led indecisiveness in social settings. In an ultimatum game experiment where receivers may face preferences between material gains equity, we allow assign non-zero probabilities both acceptance rejection (the randomized choice) addition the standard binary choice of or rejection. further elicit receivers’ wi...

Journal: :Medicina 2023

The development of new drugs is a time consuming and costly process, so the use approved for indications (repurposing) promising area pharmaceutical industry. There are two main approaches drug development: experimental computational. Currently, due to availability large data sets, computational methods, including those based on artificial intelligence, being actively developed. widespread gene...

2013
John D. Cook

The simplest Bayesian adaptive randomization scheme is to randomize patients to a treatment with probability equal to the probability p that the treatment is better. We examine three variations on adaptive randomization which are used to compromise between this scheme and equal randomization. The first variation is to apply a power transformation to p to obtain randomization probabilities. The ...

Journal: :Journal of the Royal Society of Medicine 2010
David R Cox

2009
Paul Brennan Rayjean Hung

Associations between modifiable exposures and disease seen in observational epidemiology are sometimes confounded and thus misleading, despite our best efforts to improve the design and analysis of studies. Mendelian randomization, the random assortment of genes from parents to offspring that occurs during gamete formation and conception provides one method for assessing the causal nature of so...

1996
Emo Welzl

Frameworks ? Bernd Gartner and Emo Welzl Institut f ur Informatik, Freie Universitat Berlin, Takustr. 9, D-14195 Berlin, Germany fgaertner,[email protected] Abstract. Recent years have brought some progress in the knowledge of the complexity of linear programming in the unit cost model, and the best result known at this point is a randomized `combinatorial' algorithm which solves a linea...

Journal: :Behaviour research and therapy 1994
P Onghena E S Edgington

Alternating Treatments Designs (ATD) with random assignment of the treatments to the measurement times provide very powerful single-case experiments. However, complete randomization might cause too many consecutive administrations of the same treatment to occur in the design. In order to exclude these possibilities, an ATD with restricted randomization can be used. In this article we provide a ...

2000
Juan A. Carrasco

In this paper we develop a variant of a previously proposed method (the regenerative randomization method) for the transient analysis of dependability/performability models. The variant is obtained by developing a closed-form expression for the solution of the truncated transformed model obtained in regenerative randomization and using a Laplace transform inversion algorithm. Using models of mo...

Journal: :Journal of the Practice of Cardiovascular Sciences 2016

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