2,814 research outputs found
CUSTOMER SATISFACTION MEASUREMENT MODELS: GENERALISED MAXIMUM ENTROPY APPROACH
This paper presents the methodology of the Generalised Maximum Entropy (GME) approach for estimating linear models that contain latent variables such as customer satisfaction measurement models. The GME approach is a distribution free method and it provides better alternatives to the conventional method; Namely, Partial Least Squares (PLS), which used in the context of costumer satisfaction measurement. A simplified model that is used for the Swedish customer satis faction index (CSI) have been used to generate simulated data in order to study the performance of the GME and PLS. The results showed that the GME outperforms PLS in terms of mean square errors (MSE). A simulated data also used to compute the CSI using the GME approach.Generalised Maximum Entropy, Partial Least Squares, Costumer Satisfaction Models.
Simulation of spherulite growth using a comprehensive approach to modeling the first-order isotropic/smectic-A mesophase transition
A comprehensive modeling and simulation study of the first-order
isotropic/smectic-A transition is presented and applied to phase diagram
computation and two-dimensional spherulite growth. An approach based on
nonlinear optimization, that incorporates experimental data (from 12CB,
dodecyl-cyanobiphenyl), is used to determine physically realistic model
parameters. These parameters are then used in conjunction with an optimized
phase diagram computation method. Additionally, a time-dependent formulation is
presented and applied to the study of two-dimensional smectic-A spherulite
growth. These results show the growth kinematics and defect dynamics of
nanoscale smectic-A spherulite growth in an isotropic phase with an initially
radial layer configuration
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