نتایج جستجو برای: noise and uncertainty

تعداد نتایج: 16866255  

Journal: :International Journal of Future Generation Communication and Networking 2014

Journal: :تحقیقات علوم رفتاری 0
صمد فهیمی samad fahimi مجید محمود علیلو majid mahmoud aliloo معصومه رحیم خانلی masoumeh rahimkhanli علی فخاری ali fakhari حمید پورشریفی hamid poursharifi صمد فهیمی مجید محمود علیلو

abstract background and aim: the intolerance of uncertainty model was initially developed as an explanation for worry within the context of generalized anxiety disorder. however, recent research has identified intolerance of uncertainty (iu) as a transdiagnostic maintaining factor across the anxiety disorders. the aim of the present study was to compare the intolerance of uncertainty in patient...

Journal: :Annals of Nuclear Energy 2022

A comprehensive uncertainty analysis methodology has been established for the modeling of stationary neutron flux oscillations induced by fuel rods vibration in a zero-power reactor. The includes propagation and sensitivity analysis. target event is based on an actual experimental campaign at CROCUS reactor corresponds to simultaneous oscillation 18 metallic uranium periphery core. Both commonl...

Journal: :Computer Methods in Applied Mechanics and Engineering 2022

Calculating the expected information gain in optimal Bayesian experimental design typically relies on nested Monte Carlo sampling. When model also contains nuisance parameters, which are parameters that contribute to overall uncertainty of system but no interest framework, this introduces a second inner loop. We propose and derive small-noise approximation for additional The computational cost ...

Journal: :international journal of occupational hygiene 0
ali asghar alesheikh faculty of geomatics engineering, k. n. toosi university of technology, vali-e-asr st., mirdamad cross, tehran, iran manouchehr omidvari faculty of industrial and mechanical engineering, islamic azad university, qazvin branch, qazvin, iran

large urban areas are facing growing problems of noise pollutions. geospatial information systems (gis) can conveniently be adapted to gather, analyze and present noise information. gis can also be extended to answer to user specific problems through deterministic and statistics models. the objectives of this research were to measure urban traffic noise levels, analyze temporal and spatial dyna...

Journal: :Journal of vision 2011
Melchi Michel Wilson S Geisler

Efficient performance in visual detection tasks requires excluding signals from irrelevant spatial locations. Indeed, researchers have found that detection performance in many tasks involving multiple potential target locations can be explained by the uncertainty the added locations contribute to the task. A similar type of Location Uncertainty may arise within the visual system itself. Converg...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2002
Robert J van Beers Pierre Baraduc Daniel M Wolpert

Neural signals are corrupted by noise and this places limits on information processing. We review the processes involved in goal-directed movements and how neural noise and uncertainty determine aspects of our behaviour. First, noise in sensory signals limits perception. We show that, when localizing our hand, the central nervous system (CNS) integrates visual and proprioceptive information, ea...

2011
Sunchana P. Pucic

National Institute of Standards and Technology, Boulder. CO 80303-3328 Standard unrertaintjes are evaluated for the nuU-balarced, total-power, heicrodyned radiometer system with a switched input that was recently developed U NIST lo calibrate thermal noise sources. Eighi significant sources of uncertainty due tw sysletoatic effects arc iiicnlirtcd. two attributable to the two noise standards, a...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2012
Allan Tameshtit

High-temperature and white-noise approximations are frequently invoked when deriving the quantum Brownian equation for an oscillator. Even if this white-noise approximation is avoided, it is shown that if the zero-point energies of the environment are neglected, as they often are, the resultant equation will violate not only the basic tenet of quantum mechanics that requires the density operato...

Journal: :Journal of neurophysiology 2004
Christopher L Passaglia John B Troy

Neural noise introduces uncertainty about the signals encoded in neural spike trains. Because of the uncertainty neurons can reliably transmit a limited amount of information. This amount is difficult to quantify for neurons that combine signals and noise in a complex manner, as many trials would be needed to estimate the joint probability distribution of stimulus and neural response accurately...

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