نتایج جستجو برای: uncertainty estimator
تعداد نتایج: 151254 فیلتر نتایج به سال:
This paper presents a novel algorithm for uncertainty quantification of water distribution system measurement data including nodal demands/consumptions as well as real pressure and flow measurements. This procedure, referred to as a Confidence Limit Analysis (CLA), is concerned with a deployment of a Least Squares (LS) state estimator based on the loop corrective flows and the variation of noda...
In this article we derive tractable analytic solutions for futures and options prices a linear-quadratic jump-diffusion model with seasonal adjustments in stochastic volatility convenience yield. We then calibrate our to data from the fish pool market, using extended Kalman filter quasi-maximum likelihood estimator alternatively an implied-state estimator. find no statistical evidence of jumps....
In this paper an estimator of speech spectrum for speech enhancement based on Laplacian Mixture Model has been proposed. We present an analytical solution for estimating the complex DFT coefficients with the MMSE estimator when the clean speech DFT coefficients are mixture of Laplacians distributed. The distribution of the DFT coefficients of noise are assumed zero-mean Gaussian.The drived MMSE...
در این تحقیق اثر تغییر اقلیم بر مراحل فنولوژی گندم در کرمانشاه بررسی شده است در ابتدا رخداد تغییر اقلیم برای دوره پایه (2008 تا 1988) در منطقه با استفاده از دو آزمون من-کندال و sens estimator slope ارزیابی شد نتایج نشان داد که متوسط دمای سالانه دارای روند افزایشی و همچنین متوسط بارندگی های سالانه دارای روند کاهشی می باشد. در ادامه هم با ریز مقیاس نمایی آماری داده های خروجی مدل ccsm4 با استفاده ...
Abstract— A novel PER estimation method based on the Log Likelihood Ratios of a soft output decoder is proposed. Classically, PER estimation based on soft output decoding depends on an estimate of the SNR. The contribution of this paper is a PER estimate that is not biased by such SNR estimation uncertainty. We compare the proposed estimation method with the estimator proposed by Hoher first by...
This paper is concerned with complete synchronization of fractional-order chaotic systems both model uncertainty and external disturbance. Firstly, we propose a new dynamic feedback control method for nominal (without disturbance). Then, disturbance estimator (UDE)-based the presented, by which problem such realized. Finally, Lorenz system used to demonstrate practicability proposed results.
Introduction In classical methods of statistics, the parameter of interest is estimated based on a random sample using natural estimators such as maximum likelihood or unbiased estimators (sample information). In practice, the researcher has a prior information about the parameter in the form of a point guess value. Information in the guess value is called as nonsample information. Thomp...
Abstract We consider a sieve bootstrap procedure to quantify the estimation uncertainty of long-memory parameters in stationary functional time series. use semiparametric local Whittle estimator estimate parameter. In estimator, discrete Fourier transform and periodogram are constructed from first set principal component scores via analysis. The uses general vector autoregressive representation...
In this article introduce the sequential order statistics. Therefore based on multiply Type-II censored sample of sequential order statistics, Bayesian estimators are derived for the parameters of one- and two- parameter exponential distributions under the assumption that the prior distribution is given by an inverse gamma distribution and the Bayes estimator with respect to squared error loss ...
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