Results 201 to 210 of about 28,348 (242)
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The effects of optimism bias in teams
Applied Economics, 2014This article imports a behavioural perspective into a team context to study the effort-coordination problem among agents.
Jun Yang +2 more
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Optimism bias in understanding neonatal prognoses
Journal of Perinatology, 2020Discrepancies between physician and parent neonatal prognostic expectations are common. Optimism bias is a possible explanation.Parents interpreted hypothetical neonatal prognoses in an online survey.Good prognoses tended to be interpreted accurately, while poor prognoses were interpreted as less than the stated value.
Babina Nayak +4 more
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The bias in the bias: Comparative optimism as a function of event social undesirability
Organizational Behavior and Human Decision Processes, 2014We present a new event-level predictor of comparative optimism: comparative optimism is larger for more socially undesirable events. A meta-analysis shows that event social undesirability predicts comparative optimism effect sizes reported in the literature, over and above the effects of other known predictors. Four experiments corroborate this finding
Sweldens, Steven +3 more
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Neural mechanisms mediating optimism bias
Nature, 2007Humans expect positive events in the future even when there is no evidence to support such expectations. For example, people expect to live longer and be healthier than average, they underestimate their likelihood of getting a divorce, and overestimate their prospects for success on the job market.
Tali, Sharot +3 more
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Bias Optimality in Controlled Queueing Systems
Journal of Applied Probability, 1998This paper studies an admission control M/M/1 queueing system. It shows that the only gain (average) optimal stationary policies with gain and bias which satisfy the optimality equation are of control limit type, that there are at most two and, if there are two, they occur consecutively.
Haviv, Moshe, Puterman, Martin L.
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BIAS OPTIMALITY IN A QUEUE WITH ADMISSION CONTROL
Probability in the Engineering and Informational Sciences, 1999We consider a finite capacity queueing system in which each arriving customer offers a reward. A gatekeeper decides based on the reward offered and the space remaining whether each arriving customer should be accepted or rejected. The gatekeeper only receives the offered reward if the customer is accepted.
Lewis, Mark E. +2 more
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Bias terms in the optimal quadratic receiver
IEEE Communications Letters, 1998The bias terms in the likelihood functions of the optimal quadratic receiver are compared. In a Rician-fading frequency-nonselective channel with additive white Gaussian noise (AWGN) the terms are identical, and can be neglected if the transmitted signals have identical envelopes.
Taylor, D., Mämmelä, Aarne
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Optimal and suboptimal separate-bias Kalman estimators for a stochastic bias
IEEE Transactions on Automatic Control, 2000Addresses two issues concerning the separate-bias Kalman estimator. The first of these issues deals with the derivation of the optimal estimator for the general case in which the bias vector is stochastic in nature, and the second issue deals with defining a suitable suboptimal realization of the generalized estimator.
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Optimal Tests for Initialization Bias in Simulation Output
Operations Research, 1983We present a family of tests for detecting initialization bias in the mean of a simulation output series using a hypothesis testing framework. The null hypothesis is that the output mean does not change throughout the simulation run. The alternative hypothesis specifies a general transient mean function.
Lee Schruben, H. Singh, Luke Tierney
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Statistical bias in optimized VBM
SPIE Proceedings, 2013The recent discovery of methodological flaws in experimental design and analysis in neuroscience research has raised concerns over the validity of certain techniques used in routine analyses and their corresponding findings. Such concerns have centered around selection bias whereby data is inadvertently manipulated such that the resulting analysis ...
Nicholas J. Tustison +4 more
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