Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Random Parameter"”.
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Sensitivity analysis of optimal linear random parameter systems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1979.
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A random parameter approach to modeling and forecasting time series
… + u<sub>t</sub> where α(t) is a random function of time. This dissertation gives necessary and sufficient conditions for the existence of a mean zero stochastic process with finite second-order moments which is a solution to the generalized AR(1) model and gives sufficient …
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Eterogeneità delle preferenze in ambito energetico-ambientale. Modelli di scelta e Posterior Analysis
… and forms of Posterior Analysis on individual parameters are useful methodologies for detailed investigation. In the first case study a Random Parameter Logit Model is used to investigate individual preferences towards energy efficient technologies from Choice Experiments where respondents act …
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Interpretable Deep Image Denoiser by Unrolling Graph Laplacian Regularizer
… but these models require on large numbers of parameters, lack interpretability, and depend heavily on random parameter initialization. As a result, they frequently converge to poor-performing local minima. This thesis proposes an image denoising neural net constructed by unrolling an iterative …
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Construction of nonlinear filter algorithms using the saddlepoint approximation
… of the maximum likelihood estimator of a non-random parameter given a set of measurements), its potential for use in the dynamic setting of the nonlinear filtering problem has yet to be realized. This is probably because the assumptions on the form of the integrand that is typical in the …
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Achieving Data Privacy and Security in Cloud
… relationship between the edges. One is to add random noise in each piece, the other is to design a one-to-one mapping function for each piece to map different pixel value into different another one, which cuts off the relationship between pixels as well the edges. Our mapping function is given …
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Modeling Temporal and Spatial Data Dependence with Bayesian Nonparametrics
… at consecutive time points are linked via a random parameter that controls their probabilistic similarity. The new model favors a smooth evolutionary clustering while allowing innovative patterns to be inferred. Experimental analysis is performed on music, and may also be employed on text …
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An Assessment of Consumers’ Willingness to Pay for Attributes of Milk and Dairy Products with the 100% Canadian Milk Symbo
… out using the Multinomial Logit (MNL) and the Random Parameter Logit models (RPL). The results suggest that consumers in general have positive perceptions of milk and ice cream with the 100% Canadian milk symbol but negatively perceive store brand and organic labels. However, in some cases, …
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Consumer Choice of Hotel Experiences: The Effects of Cognitive, Affective, and Sensory Attributes
… hotel choice using multinomial logit (MNL) and random parameter (or mixed) logit (RPL) models. For choice experiments, the main objectives are to determine the choice attributes and attribute levels to be used for the choice modeling and to create an optimal choice design. I used a Bayesian …
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Integrating Pro-Environmental Behavior with Transportation Network Modeling: User and System Level Strategies, Implementation, and Evaluation
… a lb. of GHG emissions are estimated from random parameter models. Results indicate that different trade-off values for male and female groups. Further, participants from high-income households are found to have higher trade-off values compared with other groups. Next, we propose personal …
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Demand for Water Quality: Empirical Evidence from a Knowledge, Attitude, Behavior, and Choice Experiment Survey about the Bagmati River in Kathmandu, Nepal
… in river water quality. Results from a random parameter logit model show that residents of Kathmandu are willing to pay NRS 1520 (NRS 75=US$ 1) per year to improve the river water quality to a level that is suitable for fish and other aquatic animals from a level that is suitable for …
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The Potential for Innovative Farm Business Structures in the Australian Grains Sector
… JV attribute preferences was identified using random parameter logit modelling and latent class analysis. Six classes of farmers, each with distinct preferences for JV structure attributes suggest that, although there is no ‘one size fits all’ model, there are opportunities for compatible JV …
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Addressing water scarcity in urban Tanzania: household preferences, behavioural interventions, and technological adoption
… reveals preference heterogeneity and employs a random parameter logit model to capture this diversity. Findings indicate a preference for high-quality, drinkable tap water with good pressure, available either in the morning, afternoon, or at night. The study suggests that policy options should …
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Three essays on stated choice experiments for nonmarket valuation of landslide protection
… essay addresses the issue of the stability of parameter estimates obtained through simulation using choice models with latent variables. Specifically, it analyses the stability of the coefficients to the number of simulation draws and the increasing number of latent variables. Three Random …
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Empirical Studies of Discrete Choice Models in Health, Fertility, and Voting
… account for preference heterogeneity by using a random parameter framework. Chapter 2 discusses another application of discrete choice models in event history models (also called survival analysis). In these type of models, the main goal is to use the history of happening an event to learn more …
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Development of nitrogen doped resorcinol-formaldehyde gels for carbon capture
… and process routes.;There are a number of parameters that can be altered when synthesising a gel, namely, R/C (catalyst) and R/F molar ratios, concentration of M, solids content, solution pH, catalyst, solvent, temperature, time, and agitation. This research aims to tailor the gel structure …
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Testing Criterion Validity of Benefit Transfer Using Simulated Data
… between the study and policy sites- scale parameter, substitution possibilities, observable characteristics, population preferences, measurement error in variables, and a case of preference heterogeneity at the study site and fixed preferences at the policy site. These cases of difference …
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Methods, Tools, and Data to Facilitate Development and Implementation of Essential Health Benefit Packages
… preference weights for each attribute using a random-parameter mixed logit model. I found that all four criteria were statistically significant and varied monotonically across different attribute levels, as expected. The conditional relative importance of each of the four attributes was 38.8% …
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Uncertainty quantification for integrated circuits and microelectrornechanical systems
… models, the stochastic nature of some design parameters, external environmental fluctuations (e.g., temperature variation), measurement noise, and so forth. In order to enable robust engineering design and optimal decision making, efficient stochastic solvers are highly desired to quantify the …
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An Agent-based Travel Demand Model System for Hurricane Evacuation Simulation
… the evacuate-stay choice model using the random-coefficient binary logit specification. It uses heterogeneous mean of the random parameter across households to capture shadow evacuation. It is found that the likelihood of evacuation for households that do not receive any evacuation notice …
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