Classification is one of the frequently demanded tasks in data analysis. There exists a series of approaches in this area. This paper is oriented towards classification using the mixture model estimation, which is based on detection of density clusters in the data space and fitting the component models to them. A chosen function of proximity of the actually measured data to individual mixture c...

Nonlinear mixed effects models have received a great deal of attention in the statistical literature recent years because their flexibility handling longitudinal studies, including human immunodeficiency virus viral dynamics, pharmacokinetic analyses, and studies growth decay. A standard assumption nonlinear for continuous responses is that random within-subject errors are normally distributed,...

A two component parametric mixture is proposed to model survival after an invasive treatment, when patients may experience different hazards regimes: a risk of early mortality directly related to the treatment and/or the treated condition, and a risk of late death influenced by several exogenous factors. The parametric mixture is based on Weibull distributions for both components. Different set...

Normal state-space models are prevalent, but to increase the applicability of the Kalman filter, we propose mixtures of skewed, and extended skewed, Kalman filters. To do so, the closed skew-normal distribution is extended to a scalemixture class of closed skew-normal distributions. Some basic properties are derived and a class of closed skew-t distributions is obtained. Our suggested family of...

Local asymptotic minimax risk bounds in a locally asymptotically mixture of normal family of distributions have been investigated under asymmetric loss functions and the asymptotic distribution of the optimal estimator that attains the bound has been obtained.

ABSTRACT The multivariate exponential power is a useful distribution for modeling departures from normality in data by means of tail weight scalar parameter that regulates the non-normality model. incorporation shape asymmetry vector into model serves to account potential asymmetries and gives rise skew distribution. This work aimed at revisiting taking as starting point its formulation scale m...

. \ In an earlier paper, it was suqqested that peakinq capacitors such as are used in nuclear electromaqnetic pulse simulators be used to supply the fast current rise times which have been indicated in recent researches in the field of liqhtninq spherics and liqhtninq strikes to aircraft. A more quantitative experimental and analytical study has been undertaken to examine the feasilibiiity and ...