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Browsing Theses and Dissertations - Department of Information Systems, Statistics & Management Science by Title

Browsing Theses and Dissertations - Department of Information Systems, Statistics & Management Science by Title

Now showing items 16-35 of 41

Location privacy exchange behavior: development and testing of two proposed models

Thompson, Samuel Charles (University of Alabama Libraries, 2013)

Researchers studying the role of privacy perceptions in Location-Based Services (LBS) have primarily focused on information disclosure decisions at the individual transaction level, weighing the benefits of LBS against the ...
Medical decision making in patients with chronic diseases

Mirghorbani, Seyedeh Saeideh (University of Alabama Libraries, 2018)

Inefficient resource allocation and planning, expensive treatment costs, and low patient adherence to medication plans lead to undesired health outcomes in patients with chronic diseases. Operation research and stochastic ...
Model tree analysis with randomly generated and evolved trees (M-TARGET)

Sasamoto, Mark Makoto (University of Alabama Libraries, 2010)

Tree structured modeling is a data mining technique used to recursively partition a data set into relatively homogeneous subgroups in order to make more accurate predictions on future observations. One of the earliest ...
Models for patient-centered appointment scheduling in physician clinics

Dogru, Ali Kemal (University of Alabama Libraries, 2018)

Naive clinical capacity planning, myopic appointment scheduling techniques, and unavoidable appointment interruptions lead to excessive patient waiting time, physician idle time and overtime, which result in inefficient ...
Multivariate time series clustering using kernel variant multi-way principal component analysis

Choi, Hwanseok (University of Alabama Libraries, 2010)

Clustering multivariate time series data has been a challenging task for researchers since data has multiple dimensions to consider such as auto-correlations and cross-correlations whereas multivariate time series data has ...
Network design models for intermodal logistics

Ishfaq, Rafay (University of Alabama Libraries, 2010)

This research is motivated by the extraordinary increase in the use of intermodal shipments in recent years for both domestic and global movement of freight. Three mathematical models, which explore the dynamics of intermodal ...
New models for homeland security and public safety

Fontem, Belleh (University of Alabama Libraries, 2014)

The standard approach to mathematical optimization is to construct models which assume 1) perfect knowledge of the algebraic form of the optimizable function, and 2) that the problem parameters are not subject to external ...
New models for operations planning under risk and uncertainty

Freeman, Nickolas Kirk (University of Alabama Libraries, 2014)

The presence of uncertainty complicates planning decisions in all industries and sectors. In an operations context, failure to acknowledge and incorporate the unknowns in the decision-making process may lead to undesirable ...
On robust estimation of multiple change points in multivariate and matrix processes

Melnykov, Yana (University of Alabama Libraries, 2017)

There are numerous areas of human activities where various processes are observed over time. If the conditions of the process change, it can be reflected through the shift in observed response values. The detection and ...
On the detection and estimation of changes in a process mean based on kernel estimators

Mercado Velasco, Gary Ricardo (University of Alabama Libraries, 2012)

Parametric control charts are very attractive and have been used in the industry for a very long time. However, in many applications the underlying process distribution is not known sufficiently to assume a specific ...
On the identification of statistically significant network topology

Michaelson, Gregory Vincent (University of Alabama Libraries, 2010)

Determining the structure of large and complex networks is a problem that has stirred great interest in many fields including mathematics, computer science, sociology, biomedical research, and epidemiology. Despite this ...
On the use of transformations for modeling multidimensional heterogeneous data

Sarkar, Shuchismita (University of Alabama Libraries, 2019)

The objective of cluster analysis is to find distinct groups of similar observations. There are many algorithms in literature that can perform this task and among them model based clustering is one of the most flexible ...
Online vehicle routing problems and analysis

Capar, Ibrahim (University of Alabama Libraries, 2016)

Traditional optimization models, whether classified as deterministic or stochastic, require problem related parameters to be known with certainty or according to a probability distribution. However, in many real life ...
Reduced bias prediction regions and estimators of the original response when using data transformations

Walker, Michael (University of Alabama Libraries, 2015)

Initially motivated by electron microscopy experiments, we develop an approximate prediction interval on the univariate response variable Y, where it is assumed that a normal-theory linear model is fit using a transformed ...
Some contributions to univariate nonparametric tests and control charts

Zheng, Rong (University of Alabama Libraries, 2017)

In general, statistical methods have two categories: parametric and nonparametric. Parametric analysis is usually made based on information regarding the probability distribution of the random variable. While, nonparametric ...
Specification theory, patterns, and models in information systems domains: an exploratory investigation

Woolridge, Richard William (University of Alabama Libraries, 2010)

Application and project domain specifications are an important aspect of Information Systems (IS) development. Observations of over thirty IS projects suggest dimly perceived structural patterns in specifications that are ...
Stochastic decision models for last mile distribution using approximate dynamic programming

Cook, Robert A. (University of Alabama Libraries, 2018)

After localized disasters, donations are sometimes collected at the same facility as they are distributed, and the damaged infrastructure is overwhelmed by the congestion. However, separating the donation facilities from ...
Supply chain network design and analysis under disruptions

Firouz, Mohammad Firouz (University of Alabama Libraries, 2016)

This dissertation focuses on two contributions in supply chain management when there is a risk of disruptions. The first contribution investigates the supply chain network design of a consumable product with risks imposed ...
The development of diagnostic tools for mixture modeling and model-based clustering

Zhu, Xuwen (University of Alabama Libraries, 2016)

Cluster analysis performs unsupervised partition of heterogeneous data. It has applications in almost all fields of study. Model-based clustering is one of the most popular clustering methods these days due to its flexibility ...
The statistical detection of clusters in networks

Ballard, Marcus Alan (University of Alabama Libraries, 2018)

A network consists of vertices and edges that connect the vertices. A network is clustered by assigning each of the N vertices to one of k groups, usually in order to optimize a given objective function. This dissertation ...

Now showing items 16-35 of 41

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Browsing Theses and Dissertations - Department of Information Systems, Statistics & Management Science by Title

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