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Equalization of Modal Dispersion in Multimode Fiber Using Spatial Light Modulators
Equalization Modal Dispersion Multimode Fiber Spatial Light Modulators
2015/7/10
Intersymbol interference (ISI) due to modal dispersion is the dominant limitation to the bit rate-distance product in multimode fiber-optic communication systems. If the light launched into the fiber ...
Compensation of Multimode Fiber Dispersion using Adaptive Optics via Convex Optimization
Adaptive optics optical fi ber dispersion spatial light modulators (SLMs)
2015/7/9
We propose a provably optimal technique for minimizing inter-symbol interference (ISI) in multimode fiber (MMF) systems using adaptive optics via convex optimization. We use a spatial light modulator ...
Prominent Job Advertisements,Group Learning and Wage Dispersion
Wages Job Offer Job Search Advertising
2015/4/27
A model is presented in which people base their labor search strategy on the average wage and the average unemployment duration of people who belong to their peer group. It is shown that, if the distr...
Local power of the LR, Wald, score and gradient tests in dispersion models
Asymptotic expansions Chi-square distribution Dispersion models Gradient test Likelihood ratio test Local power Score test Wald test
2011/3/24
We derive asymptotic expansions up to order $n^{-1/2}$ for the nonnull distribution functions of the likelihood ratio, Wald, score and gradient test statistics in the class of dispersion models, under...
Inference on Eigenvalues of Wishart Distribution Using Asymptotics with respect to the Dispersion of Population Eigenvalues
eigenvalues of covariance matrix Wishart distribution test on eigenvalues interval estimation of eigenvalues
2010/4/28
In this paper we derive some new and practical results on testing and interval estimation
problems for the population eigenvalues of a Wishart matrix based on the asymptotic theory
for block-wise in...
Improved estimators for dispersion models with dispersion covariates
Dispersion models Dispersion Covariates Nonlinear Models Bias Correction
2010/3/9
In this paper we discuss improved estimators for the regression and the dispersion
parameters in an extended class of dispersion models (Jørgensen, 1996). This
class extends the regular dispe...
Skewness of maximum likelihood estimators in dispersion models
dispersion models nonlinear models skewness maximum likelihood
2010/3/9
We introduce the dispersion models with a regression structure to extend the
generalized linear models, the exponential family nonlinear models (Cordeiro and
Paula, 1989) and the proper dispersion m...
ON MINIMAXITY OF SOME ORTHOGONALLY INVARIANT ESTIMATORS OF BIVARIATE NORMAL DISPERSION MATRIX
Wishart distribution Covariance Matrix Minimax Stein's loss Quadratic loss
2009/3/11
We consider an orthogonally invariant estimation of Σ of Wishart distribution using Stein’s loss (entropy loss) or a quadratic loss. In these problems the best lower triangular matrix invariant estima...
Conjugate Location-Dispersion Families
addition identity conjugate prior empirical Bayes estimator Kullback-Leibler separator location-dispersion family posterior mode Pythagorean relationship
2009/3/5
We make a conjugate analysis for the five location-dispersion families including the normal, the transformed gamma and the von Mises distributions. The five families are introduced through the require...
Some discrete exponential dispersion models：Poisson-Tweedie and Hinde-Demetrio classes
Negative binomial distribution overdispersion Poisson mixture Tweedie family unit variance function
2009/2/23
In this paper we investigate two classes of exponential dispersion models (EDMs) for overdispersed count data with respect to the Poisson distribution. The first is a class of Poisson mixture with pos...