Results 41 to 50 of about 69,041 (263)

Directionally-unbiased unitary optical devices in discrete-time quantum walks [PDF]

open access: yes, 2019
The optical beam splitter is a widely-used device in photonics-based quantum information processing. Specifically, linear optical networks demand large numbers of beam splitters for unitary matrix realization.
Osawa, Shuto   +2 more
core   +2 more sources

Prediction Markets: Alternative Mechanisms for Complex Environments with Few Traders [PDF]

open access: yes, 2010
Double auction prediction markets have proven successful in large-scale applications such as elections and sporting events. Consequently, several large corporations have adopted these markets for smaller-scale internal applications where information may ...
Healy, Paul J.   +3 more
core   +2 more sources

Seamless Clinical Trials with Doubly Adaptive Biased Coin Designs

open access: yesThe New England Journal of Statistics in Data Science, 2023
In addition to scientific questions, clinical trialists often explore or require other design features, such as increasing the power while controlling the type I error rate, minimizing unnecessary exposure to inferior treatments, and comparing multiple treatments in one clinical trial.
Hongjian Zhu   +3 more
openaire   +1 more source

Qubit state transfer via discrete-time quantum walks [PDF]

open access: yes, 2015
We propose a scheme for perfect transfer of an unknown qubit state via the discrete-time quantum walk on a line or a circle. For this purpose, we introduce an additional coin operator which is applied at the end of the walk. This operator does not depend
Gedik, Zafer   +2 more
core   +2 more sources

Synthesis of Stochastic Flow Networks [PDF]

open access: yes, 2012
A stochastic flow network is a directed graph with incoming edges (inputs) and outgoing edges (outputs), tokens enter through the input edges, travel stochastically in the network, and can exit the network through the output edges.
Bruck, Jehoshua   +2 more
core   +3 more sources

A study to determine minimum effective dose of oxytocin infusion during caesarean delivery in parturients at high risk of uterine atony

open access: yesJournal of Obstetric Anaesthesia and Critical Care, 2017
Background: Oxytocin, a commonly used drug to prevent uterine atony after caesarean section, should be administered as dilute rapid infusion rather than as a bolus. This study was conducted to calculate ED90 of oxytocin infusion during caesarean delivery
Shashikiran   +3 more
doaj   +1 more source

On the almost sure convergence of adaptive allocation procedures [PDF]

open access: yes, 2015
In this paper, we provide some general convergence results for adaptive designs for treatment comparison, both in the absence and presence of covariates. In particular, we demonstrate the almost sure convergence of the treatment allocation proportion for
Antognini, Alessandro Baldi   +1 more
core   +2 more sources

Central Limit Theorems for Doubly Adaptive Biased Coin Designs

open access: yesThe Annals of Statistics, 1995
Subjects are assumed to arrive sequentially at an experimental site and are immediately assigned to one of two treatments \(A\) or \(B\). Responses from the subjects for the treatments are assumed to be independent random variables from exponential families. Let \(\rho\) denote the desired allocation proportion under Eiseles biased coin design [\textit{
Eisele, Jeffrey R.   +1 more
openaire   +2 more sources

Too good to be true: when overwhelming evidence fails to convince [PDF]

open access: yes, 2016
Is it possible for a large sequence of measurements or observations, which support a hypothesis, to counterintuitively decrease our confidence? Can unanimous support be too good to be true?
Abbott, Derek   +5 more
core   +6 more sources

Selecting a Biased-Coin Design

open access: yesStatistical Science, 2014
Biased-coin designs are used in clinical trials to allocate treatments with some randomness while maintaining approximately equal allocation. More recent rules are compared with Efron's [Biometrika 58 (1971) 403-417] biased-coin rule and extended to allow balance over covariates.
openaire   +3 more sources

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