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between error estimation and data-based complexity penalization: any good error estimate may be converted into a data …
Persistent link: https://www.econbiz.de/10009438376
Managers in the music industry closely monitor both radio airplay of an album as well as the album's sales. Their interest in radio airplay is due to the belief that airplay can increase an album’s sales. Therefore it is natural for managers to attempt to influence radio airplay so as to...
Persistent link: https://www.econbiz.de/10009441155
Classical multivariate principal component analysis has been extended to functional data and termed functional principal componentanalysis (FPCA). Most existing FPCA approaches do not accommodate covariate information, and it is the goal of this paper to develop two methods that do. In the ?rst...
Persistent link: https://www.econbiz.de/10009464603
motion (GBM) process. That is, we show what difficulties can arise when failing to account for estimation risk. Our working … parameter sigma, we derive the resulting marginal distribution of the approximated GBM. This allows us to derive post-estimation … results for the technically more-complicated formulae associated with our post-estimation process. We discuss an assortment of …
Persistent link: https://www.econbiz.de/10009476145
estimation error and a communication cost. In our formulation, the transmission of a real number from the pre-processor to the …
Persistent link: https://www.econbiz.de/10009450757
In this paper we generalize different approaches of estimating the ridge parameter k proposed by Muniz et al. (Comput Stat, <CitationRef CitationID="CR16">2011</CitationRef>) to be applicable for logistic ridge regression (LRR). These new methods of estimating the ridge parameter in LRR are evaluated by means of Monte Carlo simulations...</citationref>
Persistent link: https://www.econbiz.de/10010989298
stable estimates. Furthermore, convergence can be exceedingly slow, making estimation computationally expensive and multiple … random restarts doubly so. We derive an expectation maximization algorithm for maximum likelihood estimation mutually … exciting processes that is faster, more robust, and less biased than estimation based on numerical optimization. For an …
Persistent link: https://www.econbiz.de/10010992904
-called endmembers and fractional values in a linear mixing model. We describe one of the estimation methods based on MVSEP. We show … numerically that using nonlinear optimization local search leads to the estimation results aimed at. This is done using examples …
Persistent link: https://www.econbiz.de/10010994073
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