Index Catalog // ScholarsArchive@OSU

Enhancing Facial Recognition: A Comparative Analysis of Image Preprocessing Techniques in PCA, KL Expansion and SVD

Creator:: Tuffour, Prince A.
Abstract:: Facial recognition has become increasingly important in recent years, due to the wide range of applications it has in fields such as security, surveillance, and human-computer interaction. Three popular methods for facial recognition are the Principal Component Analysis (PCA), Karhunen-Loeve Expansions, which is fundamentally a continuous form of PCA but...
Resource Type:: Capstone Project
Full Text:: discretized point tj = j · ∆t, the integral equation can be approximated by a sum: N−1∑ k=0 Γ(sk, tj)ϕi(sk

Electromagnetic Inverse Problem for Relaxation Time Distribution in the Time-Domain

Creator:: Armentrout, Megan
Abstract:: We consider wide bandwidth electromagnetic pulse interrogation problems for the determination of dielectric response parameters in complex dispersive materials. We couple Maxwell’s equations with an auxiliary ODE modeling dielectric polarization. A problem of particular interest is to identify parameters in a standard polarization model (e.g., Debye or Lorentz) using time-domain...
Resource Type:: Capstone Project
Full Text:: Distribution in the Time-Domain Megan J. Armentrout∗ Oregon State University Advisor: Professor Nathan L

Polynomial Chaos Expansions for Random Ordinary Differential Equations

Creator:: McKenzie, Brian
Abstract:: We consider numerical methods for finding approximate solutions to Ordinary Differential Equations (ODEs) with parameters distributed with some probability by the Generalized Polynomial Chaos (GPC) approach. In particular, we consider those with forcing functions that have a random parameter in both the scalar and vector case. We then consider linear...
Resource Type:: Capstone Project
Full Text:: Differential Equations Brian McKenzie Advisor: Dr. Nathan Gibson January 6, 2012 Abstract We consider

Using Machine Learning Models and SVD Dimension Reduction to Predict Cancer Outcomes

Creator:: Wofford, Rachel
Abstract:: Machine learning models are powerful tools which may aid in the prediction of survival outcomes of cancer patients. This study evaluated eight classification models and eight regression models on their ability to predict survival outcomes on breast cancer and prostate cancer data sets from the SEER database. The most accurate...
Resource Type:: Capstone Project
Full Text:: to Predict Cancer Outcomes Rachel Wofford Advisors: Dr. Nathan Gibson, Dr. Samantha Erwin Oregon

Using Machine Learning Models and SVD Dimension Reduction to Predict Cancer Outcomes

Creator:: Wofford, Rachel E.
Abstract:: Machine learning models are powerful tools which may aid in the prediction of survival outcomes of cancer patients. This study evaluated eight classification models and eight regression models on their ability to predict survival outcomes on breast cancer and prostate cancer data sets from the SEER database. The most accurate...
Resource Type:: Capstone Project

Dynamic Probabilistic Risk Assessment Using ADAPT/RELAP5-3D for Cybersecurity Threat Analysis

Creator:: Wiltbank, Nathan E.
Abstract:: There is a growing need for an expanded Probabilistic Risk Assessment (PRA) framework that is able to accommodate new uncertainties that are present in Generation 3+ reactor designs. Dynamic PRA (DPRA) can allow for a more realistic risk assessment by taking advantage of established nuclear simulation codes to drive Dynamic...
Resource Type:: Masters Thesis
Full Text:: WiltbankNathanE2022 AN ABSTRACT OF THE THESIS OF Nathan Wiltbank for the

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Creator:: Hostetter, Nathan J.
Abstract:: The ability to non-destructively assess fish condition and subsequently track fish behavior and survival can be vital in understanding natural and anthropogenic stressors and sources of mortality, especially in populations of fish listed as threatened or endangered. I investigated the use of a quick, non-lethal, external examination technique to assess...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nathan J

Removal of E. coli with alternative media Biosand filters

Creator:: Fulton, Nathan J.
Abstract:: When Biosand filters cannot be constructed with crushed quarry rock due to resource limitations, a suitable alternative filter media is needed. In this research, two crushed quarry rock alternatives were examined. Three bench-scale Biosand filters with crushed rock, beach sand, and heat-treated beach sand media were simultaneously dosed with Willamette...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Nathan J. Fulton for the degree of Master of Science in Chemical Engineering

First-Year Mentorship Program Influence on Second-Year Student Success

Creator:: Petitti, Nathan J.
Abstract:: Second-year students are a population that is often overlooked by higher education institutions. Many programs are offered to foster the success of students, but there is little research on their influence on second-year students. Mentorship initiatives are well researched and utilized support programs for students, but relatively little research has...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nathan Petitti for the degree

Population Ecology of the Mariana Swiftlet (Aerodramus bartschi) on O'ahu, Hawaiian Islands

Creator:: Johnson, Nathan Christopher
Abstract:: The Mariana Swiftlet (Aerodramus bartschi) (Aves: Apodidae) is endemic to the Mariana Islands, where it currently occurs on Saipan, Aguiguan, and Guam. An introduced population of Mariana Swiftlets is also present on O'ahu in the Hawaiian Islands. Sparing interference with the endangered population in the Marianas, the introduced, surrogate population...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nathan Christopher Johnson for the degree of Master of Science in

ScholarsArchive@OSU

Enhancing Facial Recognition: A Comparative Analysis of Image Preprocessing Techniques in PCA, KL Expansion and SVD

Electromagnetic Inverse Problem for Relaxation Time Distribution in the Time-Domain

Polynomial Chaos Expansions for Random Ordinary Differential Equations

Using Machine Learning Models and SVD Dimension Reduction to Predict Cancer Outcomes

Using Machine Learning Models and SVD Dimension Reduction to Predict Cancer Outcomes

Dynamic Probabilistic Risk Assessment Using ADAPT/RELAP5-3D for Cybersecurity Threat Analysis

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Removal of E. coli with alternative media Biosand filters

First-Year Mentorship Program Influence on Second-Year Student Success

Population Ecology of the Mariana Swiftlet (Aerodramus bartschi) on O'ahu, Hawaiian Islands

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