Browsing by Author "Lee, KJ"

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Bayesian analysis of Box-Cox transformed linear mixed models with ARMA(p, q) dependence
(2005-08-01)
Lee, JC
;
Lin, TI
;
Lee, KJ
;
Hsu, YL
;
統計學研究所
In this paper, we present a Bayesian inference methodology for Box-Cox transformed linear mixed model with ARMA(p, q) errors using approximate Bayesian and Markov chain Monte Carlo methods. Two priors are proposed and put into comparisons in parameter estimation and prediction of future values. The advantages of Bayesian approach over maximum likelihood method are demonstrated by both real and simulated data. (c) 2004 Elsevier B.V. All rights reserved.
Design of optical head with holographic optical element for small form factor drive systems
(2005-02-01)
Shih, HF
;
Chang, CL
;
Lee, KJ
;
Chang, CS
;
機械工程學系
An optical head composed of an optical module and a biaxial actuator is designed for small form factor drives. This system adopts a finite-conjugate objective lens with numerical aperture 0.65 for 654-nm wavelength. A holographic optical element is used for simplifying the optical configuration which provides a better approach for alignment. The actuator is of a spider-like suspension for the focusing and is of a swing arm for the tracking.