Operations Research, Systems Engineering and Industrial Engineering Commons^™

Identification Of The Initial Transient In Discrete-Event Simulation Output Using The Kalman Filter, Mark A. Gallagher

Theses and Dissertations

Data truncation is a commonly accepted method of dealing with initialization bias in discrete-event simulation. Algorithms for determining the appropriate initial-data truncation point for univariate and multivariate output are proposed. The techniques entail averaging across replications and estimating a steady-state output model in a state-space framework. Using the estimated model, Multiple Model Adaptive Estimation (MMAE), which uses Kalman filters with different parameter vectors, is applied. Based on the filters' residuals, the conditional probabilities of each filter's specific parameter vector being correct are determined. The MMAE parameter estimates are the probabilistic- weighted average of the filters' assumed parameter vectors. The estimated …

The Relationships Between Technical Operator Turnover Rate And Selected Working Condition Factors In Taiwan's Printing Industry, Ling-Hsiao Lee

Dissertations and Theses @ UNI

The purpose of this study was to determine how technical operator turnover rate related to selected working condition factors in Taiwan's printing industry. These factors, as defined in this study, included wages, employee benefits, alternative work schedules, training programs, and gainsharings. If the results of this study showed that technical operator turnover rate was related to these selected factors, then the findings of this study would be helpful to a manager making decisions on turnover management.

The data for this study were collected by using three sets of questionnaires: (a) one designed for personnel directors, (b) one targeted at financial …