نتایج جستجو برای: uncertainty propagation
تعداد نتایج: 225543 فیلتر نتایج به سال:
We have developed an experiment to study the propagation of laboratory synthesized fatigue cracks under various controlled conditions during Sonic IR inspection. The experiment provides for good repeatability in testing. The parameters of interest include the initial crack length, load history (stress intensity and load ratio) during crack generation, geometry of the crack, material and also th...
The i-vector/PLDA approach currently dominates the field of text-independent speaker recognition and the question of how to translate this methodology to the text-dependent domain has recently become an active area of research. The essential difference between the two fields is that it is possible to do speaker recognition with enrollment and test utterances of very short duration in the text-d...
Article history: Received 9 August 2014 Received in revised form 10 January 2015 Accepted 13 January 2015 Available online 3 February 2015
Presented here is a technique of propagating uncertainties through the parton shower by means of an alternate event weight. This technique provides a mechanism to systematically quantify the effect of variations of certain components of the parton shower leading to a novel approach to probing the physics implemented in a parton shower code and understanding its limitations. Further, this approa...
In this paper, we introduce a new Hough Transforni aimed at improving curve detection accuracy and robustness as well as coniputational eficiency. Robustness and accuracy improvement is achieved by analytically propagating the errors with image pixels to the estimated curve parameters. The errors with the curve parameters are then used to determine t k contribution of pixels to the accuniulator...
The complexity of risks posed by climate change and possible adaptations for crop production has called for integrated assessment and modelling (IAM) approaches linking biophysical and economic models. This paper attempts to provide an overview of the present state of crop modelling to assess climate change risks to food production and to which extent crop models comply with IAM demands. Consid...
In the following paper we present an easily applicable new method for analytical representation of the maximum relative inaccuracy (error) of an indirectly measurable variable f = f(x1, x2, ..., xn) as a function of the maximum relative inaccuracies (errors) of the directly measurable variables x1, x2, ..., xn. Our new approach is more adequate for the objective reality. The gist of it is that ...
Recent measurements of the CR p̄ flux have been shown to pose a problem for conventional propagation models. In particular, models consistent with secondary/primary nuclei ratio in CR produce too few p̄’s, while matching the ratio and the p̄ flux requires ad hoc assumptions. This may indicate an additional local CR component or new phenomena in CR propagation in the Galaxy. We discuss several poss...
In this summary we present a method for modeling the distortion-rate characteristics of compressed video sequences. It is assumed that the source coders rely on motion-compensated prediction, and thus error propagation will contribute signiicantly to the degradation of the reconstructed video. Additionally , it is assumed that the information in each video frame can be prioritized and that sour...
In this paper we introduce an approximation method for uncertainty propagation which is based on a modification of the stratified simulation. The method uses a deterministic or perfect sample and calculates the number of times simulated instantiations are selected avoiding the repetition of identical instantiations which occurs in the standard stratified simulation method. A theoretical analysi...
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