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Filtering by: Creator Nalven, Sarah G. Remove constraint Creator: Nalven, Sarah G. Committee Member Emerson, Sarah Remove constraint Committee Member: Emerson, Sarah

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  • Positive graphical lasso estimation of sparse inverse covariance matrices

    Creator:
    Logan, Paul
    Abstract:
    We explore the possibility of estimating sparse inverse covariance matrices when for scientific reasons the covariance matrix is restricted to be a non-negative matrix. The process mirrors the graphical lasso process developed by Friedman and others(2008) that did not have this additional constraint.Accordingly, the Lasso procedure is done through coordinate...
    Resource Type:
    Capstone Project
    Full Text:
    for some non-negative function 𝜇 and 𝑥, 𝑦 in a finite distributive lattice 𝑋, then if 𝑓 and 𝑔

  • Statistical methods for assessing the likelihoods of fault rupture scenarios in earthquakes

    Creator:
    Tallan, Katherine S.
    Abstract:
    Earthquake rupture scenarios are important tools for understanding the nature of plate movement and patterns in seismic activity. The creation and assessment of these rupture scenarios rely heavily on geologic reasoning and principles applied to earthquake event data. This reliance introduces a certain amount of subjectivity to the rupture scenario...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Sarah Emerson, Committee Member, representing Statistics

  • An Overview of Multivariate Regression Analysis of Biological Data

    Creator:
    DeHart, Christopher M.
    Abstract:
    This study investigates methods of multivariate regression analysis and their applications to biological data. It provides an overview of methods of reduced rank regression and sparse multivariate regression, including their motivations, methods, and applications. It also implements a form of sparse regression known as Regularized Multivariate Regression for Identifying Master...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Sarah Emerson, Committee Member, representing Statistics

  • Music Generation and Evaluation Using R

    Creator:
    Lanz, Andrea L.
    Abstract:
    The main goal of this project is to implement an algorithmic music composition procedure and present all procedures and results in a reproducible fashion by creating a web application produced by R. To approach the implementation of the algorithmic composition of music, we start by exploring various models, but ultimately...
    Resource Type:
    Honors College Thesis
    Full Text:
    , representing Mathematics Sarah Emerson, Committee Member, representing Statistics Toni Doolen, Dean, Oregon

  • Nutrient Profile and Nursery Feeding Damage of Halyomorpha halys (Hempitera: Pentatomidae)

    Creator:
    Skillman, Victoria P.
    Abstract:
    Halyomorpha halys Stål, brown marmorated stink bug or BMSB, is now present in 43 US states. A native of eastern Asia, this pest can feed on ~200 different plant species damaging bark, leaves, buds, stems, and fruits. Many of these plant species include wild plants, ornamentals, and agricultural crops. BMSB...
    Resource Type:
    Masters Thesis
    Full Text:
    also like to thank Dr. Jim Myers and Dr. Sarah Emerson for being part of my committee and help me

  • Modeling and analyzing processes with infrequent failures : implications for process monitoring policies

    Creator:
    Darabi, Shooka
    Abstract:
    Continues improvement of industrial systems require constant measuring process variation and eliminating extraneous variation whenever possible to push the target measures as close to the ideal value as possible. Statistical Processes Control (SPC) technique is a very efficient statistical technique for monitoring and controlling processes variation. In recent years an...
    Resource Type:
    Masters Thesis
    Full Text:
    recent years an alternate Shewhart-type statistical quality control charts called g-chart has been

  • Turbine Induced Bird and Bat Fatalities at Wind Projects : Statistical Methods for Mortality Estimation Using Road and Pad Carcass Surveys

    Creator:
    Maurer, Joseph D.
    Abstract:
    Turbines at wind projects pose a threat to birds and bats flying at altitudes within the rotor swept area. These animals die from colliding with the turbine blades. Estimating mortality, or the total number of bird or bat fatalities at a wind project, is critical to understanding environmental impacts of...
    Resource Type:
    Dissertation
    Full Text:
    Theoretical Results for the Cake Estimator . . . . . . . . . . . . . . . . . 43 3.3 Estimating G

  • Take me out to (analyze) the ballgame : visualization and analysis techniques for big spatial data

    Creator:
    Comiskey, Chris
    Abstract:
    For spatial data visualization, we approach two problems and provide solutions: heat map resolution selection, and heat map confidence interval presentation. Analysts often present spatial data in gridded heat maps, at some chosen resolution. However, many data types vary in density across the domain. We develop variable-resolution heat maps to...
    Resource Type:
    Dissertation
    Full Text:
    against empirical probabilities of success, for each of the quantile groups k, for k = 1, . . . ,g. The

  • Risk of work-related musculoskeletal disorders among surgeons: comprehensive question pool development and a pilot study

    Creator:
    Kia, Kiana
    Abstract:
    Work-related musculoskeletal disorders (WMSDs) are prevalent among surgeons due to a variety of risk factors. Various subjective tools have been used to investigate the associations between these risk factors and their contributions to the development of WMSDs. This study aimed to provide a summary of a collection of popular subjective...
    Resource Type:
    Masters Thesis
    Full Text:
    , minor advisor Dr. Sarah Emerson, and Graduate Council Representative Dr. Kathy Mullet for reviewing

  • Development of Technologies to Evaluate Hot Mix Asphalt Adhesion through Tack Coat

    Creator:
    Mahmoud, Aiman Mustafa H.
    Abstract:
    Flexible pavements consist of multilayers, which form the pavement structures. Since the strength of the bond at interface between layers plays a significant role in improving the structural integri-ty and the performance of pavement structures, tack coat materials and methods used for their application during construction are important in providing...
    Resource Type:
    Masters Thesis
    Full Text:
    , Katharine Zawor- ski, and Sarah Emerson) who generously shared their time and encouragement. This