Index Catalog // ScholarsArchive@OSU

Model Selection of Discrete Classifiers under Class and Cost Distribution Change: An Empirical Study

Creator:: Ahmed, Nahian and Hutchinson, Rebecca A.
Abstract:: A variety of important machine learning applications require predictions on test data with different characteristics than the data on which a model was trained and validated. In particular, test data may have a different relative frequency of positives and negatives (i.e., class distribution) and/or different mislabeling costs of false positive...
Resource Type:: Technical Report
Full Text:: require predictions on test data with different characteristics than the data on which a model was trained

A procedure for estimating the carbon budget of terrestrial ecosystems in the former Soviet Union by geographic information system analysis and classification of AVHRR derived Global Vegetation Index

Creator:: Gaston, Greg G.
Abstract:: The purpose of this research was to develop methods for using geographic information system (GIS) analysis and unsupervised classification of Global Vegetation Index (GVI) images to improve carbon budget estimates of the former Soviet Union (FSU). A GIS was used to locate the geographic distribution and estimate the area of...
Resource Type:: Dissertation
Full Text:: , Applications of Clustering in Multi-Image Data Analysis. Report #18 Earth observation division, NASA/Johnson

Using DNA metabarcoding to describe biodiversity and disease dynamics

Creator:: Massey, Aimee L.
Abstract:: Land-use change, particularly in the form of the conversion of primary forest to forest-matrix systems, alters species communities and species interactions. Describing these often complex and nuanced species responses is one of the great challenges in ecology. Another complementary challenge is finding and using the most efficient means for collecting...
Resource Type:: Dissertation
Full Text:: the most efficient means for collecting quality data necessary for understanding ecological

The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

Creator:: Zybach, Bob
Abstract:: The purpose of this study is to examine the relationship between land management practices of Indian communities prior to contact with Europeans and the nature or character of subsequent catastrophic forest fires in the Oregon Coast Range. The research focus is spatial and temporal patterns of Indian burning across the...
Resource Type:: Dissertation
Full Text:: ) inventories, eyewitness accounts and other sources of evidence that document fire history. Data were

Oregon school district reorganization 1957-64 and implications for improvement

Creator:: Williams, Delos Dale
Abstract:: Purpose of the Study: The purpose of this research was to present a documentary analysis of school district reorganization in Oregon during the period from August 2O, 1957, to July 1, 1964, and to develop a plan for further school district reorganization for Oregon. The major elements of this study...
Resource Type:: Dissertation

Effect of Oregon’s Coordinated Care Organizations on Healthcare Utilization and Maternal and Neonatal Outcomes Among Low-income Women with Chronic Mental-Physical Comorbidities

Creator:: Masoumirad, Mandana
Abstract:: Background: The number of people diagnosed with chronic physical conditions is increasing in the United States. Chronic mental illnesses are also common in the country. Low-income women and those on Medicaid bear a disproportionate burden of chronic conditions and these conditions significantly contribute to obstetric morbidity. Prioritizing preventive measures and...
Resource Type:: Dissertation
Full Text:: in Medicaid. Method: I analyzed a uniquely linked data set that came from Oregon Medicaid

Assessing Exposures and Simplifying Complex Mixtures of SVOCs for Hazard Characterization using Alternative Model Systems

Creator:: Rivera, Brianna N.
Abstract:: Throughout their lifetime individuals are exposed to complex mixtures of chemicals. The study of chemical mixtures is an internationally recognized research priority, but seemingly complex challenge. To reduce the intricacy of studying mixtures, researchers have identified different prioritization methods based on exposure or the toxicity of chemicals. However, understanding the...
Resource Type:: Dissertation
Full Text:: representative mixture by coupling data from personal sampling devices with high-throughput bioactivity

The Viability of Container-Based Sanitation as a Tool for Sanitation Coverage in Urban Haiti

Creator:: VanRiper, Froggi Ramona
Abstract:: Haiti is far from achieving the UN goal of sanitation access for all; 20% Haitians have no sanitation access, and less than 0.1% of urban excreta is safely managed. Container-Based Sanitation (CBS) may be a key tool for achieving equitable sanitation coverage in Haiti’s cities. CBS is a sanitation strategy...
Resource Type:: Dissertation
Full Text:: CBS. Excreta handling data from secondary sources was analyzed, to understand potential impacts of

A Diachronic Linguistic Analysis of the Diagnostic and Statistical Manual of Mental Disorders (DSM)

Creator:: Rensi, Matthew T.
Abstract:: The Diagnostic and Statistical Manual of Mental Disorders (DSM) has reached a level of authority and ubiquity within the mental health field. It is the guidance force in insurance reimbursement or coverage for mental health treatment, determinations of disability related to mental health and in determinations of competence to stand...
Resource Type:: Dissertation
Full Text:: plot followed by a LOESS (locally estimated scatterplot smoothing) to fit a curve to the various data

Learning-based Techniques for Fast and Robust Motion Planning

Creator:: Chow, Scott
Abstract:: Motion planning is a cornerstone of autonomous robots, enabling robots to safely and efficiently perform tasks such as package delivery, infrastructure inspection, and manipulation. However, as the field of robotics matures, robotic systems are being developed that (1) are challenging to analytically model, (2) require computationally expensive model-based controllers, and...
Resource Type:: Dissertation
Full Text:: the other hand, data-driven methods offer a promising way to utilize observed data to learn fast-to

ScholarsArchive@OSU

Model Selection of Discrete Classifiers under Class and Cost Distribution Change: An Empirical Study

A procedure for estimating the carbon budget of terrestrial ecosystems in the former Soviet Union by geographic information system analysis and classification of AVHRR derived Global Vegetation Index

Using DNA metabarcoding to describe biodiversity and disease dynamics

The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

Oregon school district reorganization 1957-64 and implications for improvement

Effect of Oregon’s Coordinated Care Organizations on Healthcare Utilization and Maternal and Neonatal Outcomes Among Low-income Women with Chronic Mental-Physical Comorbidities

Assessing Exposures and Simplifying Complex Mixtures of SVOCs for Hazard Characterization using Alternative Model Systems

The Viability of Container-Based Sanitation as a Tool for Sanitation Coverage in Urban Haiti

A Diachronic Linguistic Analysis of the Diagnostic and Statistical Manual of Mental Disorders (DSM)

Learning-based Techniques for Fast and Robust Motion Planning

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