In public health research, it is common to follow a cohort of subjects over time, observing a vector of health indicators and a set of covariates at each of many visits. An objective of analysis is to characterize the inter-dependencies, in particular, the feedback of one response upon another...

Statistical models involving latent variables are widely used in many areas of applications, such as biomedical science and social science. When likelihood-based parametric inferential methods are used to make statistical inference, certain distributional assumptions on the latent variables are...

Thesis (Ph.D.)--University of Rochester. School of Medicine and Dentistry. Dept. of Biostatistics and Computational Biology, 2009.

In many studies, a primary endpoint and longitudinal measures of a continuous response are collected for each participant along with other covariates, and the association between the primary endpoint and features of the longitudinal profiles is of interest. One challenge is that the features of...

Optimal designs provide a very efficient way to maximize the amount of information gained in an experiment. For linear models the information is a factor of the covariates, but for non-linear models maximizing the information becomes more difficult because of the relationship of information with...

Incluye bibliografía ; Este trabajo utiliza datos de panel de olas 2002-2010 del Panel Socioeconómico Alemán, a fin de evaluar el impacto que la privación en términos de renta familiar tiene sobre el bienestar mental. La heterogeneidad no observable está controlada a través de un modelo...

This study focused on identifying factors that significantly affect the potentially insolvent status of life insurers. The potentially insolvent status is indicated based on insurer’s Risk-based capital ratio (RBC ratio) reported in the National Association of Insurance Commissioners (NAIC)...

This research endeavor consisted of two distinct efforts. First, following a literature review of the characteristics, objectives, and incentive programs available to nonindustrial private forest (NIPF) landowners, the potential effects of wood chip mill harvests on forest management practices...

This study used selected student record data to investigate the effect of students? characteristics prior to university admission (pre-admission variables), and academic actions and educational achievement indicators (post-admission variables) on retention in higher education. The analysis...

Over the last decade there has been growing interest in pool-based active learning techniques, where instead of receiving an i.i.d. sample from a pool of unlabeled data, a learner may take an active role in selecting examples from the pool. Queries to an oracle (a human annotator in most...