Digital Commons Network^™

Desiderata For A Big Data Language, David Maier

Computer Science Faculty Publications and Presentations

Data management and analytics systems for big data have proliferated, including column stores, array databases, graphanalysis environments and linear-algebra packages. This burgeoning of systems has lead to a surfeit of language and APIs. It is time to consider a new framework that can span these systems and simplify the programming and maintenance of Big Data applications. There are two key goals for such a framework:

Portability: It should be relatively easy to move an application or tool developed on one platform to operate against another. As a corollary, back-end data and analytics services should be swappable in a particular …

Usage Based Topology For Dcns, Qing Yi, Suresh Singh

Computer Science Faculty Publications and Presentations

Many data center network topologies are designed to provide full bisection bandwidth for tens of thousands of servers in order to achieve high network throughput and server agility. However, the utilization rate of DCNs on average is below 10%, which results in a significant waste of network resources and energy. Many researchers propose consolidating network traffic flows to maximize the set of idle network equipment and switching them to low power mode to save energy. In this paper, we propose using skinnier network topologies to meet performance requirements of realistic loads thus saving not only energy but capital cost as …

A Theory Of Name Resolution, Pierre Néron, Andrew Tolmach, Eelco Visser, Guido Wachsmuth

Computer Science Faculty Publications and Presentations

We describe a language-independent theory for name binding and resolution, suitable for programming languages with complex scoping rules including both lexical scoping and modules. We formulate name resolution as a two-stage problem. First a language-independent scope graph is constructed using language-specific rules from an abstract syntax tree. Then references in the scope graph are resolved to corresponding declarations using a language-independent resolution process. We introduce a resolution calculus as a concise, declarative, and language- independent specification of name resolution. We develop a resolution algorithm that is sound and complete with respect to the calculus. Based on the resolution calculus we …

A Demonstration Of The Bigdawg Polystore System, Aaron J. Elmore, Jennie Duggan, Michael Stonebraker, Magdalena Balazinska, Ugur Cetintemel, Vijay Gadepally, J. Heer, Bill Howe, Jeremy Kepner, Tim Kraska, Samuel Madden, David Maier, Timothy G. Mattson, S. Papadopoulos, J. Parkhurst, Nesime Tatbul, Manasi Vartak, Stan Zdonik

Computer Science Faculty Publications and Presentations

This paper presents BigDAWG, a reference implementation of a new architecture for “Big Data” applications. Such applications not only call for large-scale analytics, but also for real-time streaming support, smaller analytics at interactive speeds, data visualization, and cross-storage-system queries. Guided by the principle that “one size does not fit all”, we build on top of a variety of storage engines, each designed for a specialized use case. To illustrate the promise of this approach, we demonstrate its effectiveness on a hospital application using data from an intensive care unit (ICU). This complex application serves the needs of doctors and researchers …

Food-Based Activities Versus Material Possessions: Alternatives To Consumption, Robin René Wikoff, Madeleine E. Pullman

Business Faculty Publications and Presentations

We examine how food-related experiential activities offer different types of intrinsic pleasures, create an alternative path to consumerism, and subsequently affect happiness and well-being. Participant’s perspectives on these activities are compared to those of their favourite material possessions to explore the differences in meaning and motivations. Phenomenological interviews centred on food activities and material possessions revealed that experiential food-related hobbies are valued highly and a source of great life satisfaction because of meeting a variety of psychological needs. These activities offer an alternative conception of what it is to flourish and to enjoy a ‘high’ standard of living as they …

Robust Estimates For Hp-Adaptive Approximations Of Non-Self-Adjoint Eigenvalue Problems, Stefano Giani, Luka Grubišić, Agnieszka Międlar, Jeffrey S. Ovall

Mathematics and Statistics Faculty Publications and Presentations

We present new residual estimates based on Kato’s square root theorem for spectral approximations of non-self-adjoint differential operators of convection–diffusion–reaction type. These estimates are incorporated as part of an hp-adaptive finite element algorithm for practical spectral computations, where it is shown that the resulting a posteriori error estimates are reliable. Provided experiments demonstrate the efficiency and reliability of our approach.

Periodic State Revivals In Commensurate Waveguide Arrays, Jovan Petrovic, J. J. P. Veerman

Mathematics and Statistics Faculty Publications and Presentations

Emerging optical and quantum computers require hardware capable of coherent transport of and operations on quantum states. Here, we investigate finite optical waveguide arrays with linear coupling as means of efficient and compact coherent state transfer. Coherent transfer with periodic state revivals is enabled by engineering coupling coefficients between neighbouring waveguides to yield commensurate eigenvalue spectrum. Particular cases of finite arrays have been actively studied to achieve the perfect state transfer by mirroring the input into the output state.

We explore a much wider scope of coherent propagation and revivals of both the state amplitude and phase. We analytically solve …

Safety At Intersections In Oregon: A Preliminary Update Of Statewide Intersection Crash Rates, Daniel R. Hazel

Civil and Environmental Engineering Master's Project Reports

This research aims to provide a preliminary update to statewide intersection crash rates for the state of Oregon using 2008-2013 crash data and a statewide sample of 129 intersections where two (or more) state-owned facilities intersect. Using intersections where state-owned facilities represent both the major and minor legs of the intersection allows for the maintenance of up-to-date intersection crash rates by eliminating time-intensive traffic volume data collection. Due to the frequency and severity of crashes at intersections, development of easily obtained intersection crash rates is important to assess trends and effectiveness of safety countermeasures employed at these locations in the …

Open Peer Review At Four Stem Journals: An Observational Overview [Version 2; Referees: 2 Approved, 2 Approved With Reservations], Emily Ford

Library Faculty and Staff Publications and Presentations

Open peer review, peer review where authors' and reviewers' identities are disclosed to one another, is a growing trend in scholarly publishing. Through observation of four journals in STEM disciplines, PLOS One, Atmospheric Chemistry & Physics, PeerJ, and F1000Research, an observational overview is conducted. The overview relies on defined characteristics of open peer review. Results show that despite differing open peer review implementations, each journal retains editorial involvement in scholarly publishing. Further, the analysis shows that only one of these implementations is fully transparent in its peer review and decision making process. Finally, the overview contends …

Geotechnical Statistical Evaluation Of Lahore Site Data And Deep Excavation Design, Aiza Malik

Civil and Environmental Engineering Master's Project Reports

Geotechnical characterization for foundation design is critical during preliminary planning, designing and feasibility studies of various engineering projects. In this research, an effort has been made to develop a geotechnical database for the city of Lahore, Pakistan. This database would aid geologists and engineers involved in the geotechnical design and planning of engineering projects in Lahore. The project area has been divided into zones geographically. Soil profiles have been developed for all zones, which provide ranges of soil properties and SPT-N values at regular intervals. Furthermore, the research also focuses on deep excavations in urban areas of Lahore, Pakistan and …

Parametric Study Of Rocking Shallow Foundations Under Seismic Excitation, Benjamin I. Herdrich

Civil and Environmental Engineering Master's Project Reports

Conventional design of structures relies on incorporating a certain level of inelastic deformation into select components to provide seismic energy dissipation, while ensuring the foundation remains relatively stationary. However, this inelasticity comes at the cost of severe damage to the structure, which often is no longer suitable to occupancy after a seismic event. In contrast with conventional structures, structures with rocking foundations shift the ductility demands away from the structure itself, and onto the underlying soil, which may result in less damage and greater stability. The purpose of this study is to explore the behavior and performance of a simple …

Disaggregating Student Outcomes By Race And Income: Educational Equity In Oregon, Anne Sinkey, Ann Curry-Stevens

Center to Advance Racial Equity Publications and Reports

This research seeks to answer an emerging question in public school debates: whether race is just a proxy for income when it comes to disparities in educational outcomes among Oregon’s K-12 students. This research set out to respond to this question, and draws from public school data records to answer the question. We investigated student test scores across three different environments: elementary schools, middle schools and high schools. We also investigated student graduation rates from high school. The pattern of findings is absolutely clear: regardless of the site or type of disparities, when we compare how low-income students fare, all …

Brochure: Reducing The Costs Of University Education Is A Priority For Psu, Portland State University Library, Office Of Academic Innovation

Reducing Student Costs Initiative

This brochure was developed by the Portland State Library and the Office of Academic Innovation under the direction of the university's "Reducing Student Cost" working group. It provides tips for reducing the cost of textbooks.

History, Current Conditions, And Wetland Restoration At Killin Wetlands Natural Area, Washington County, Oregon, John A. Christy

Institute for Natural Resources Publications

In September 2014, the Metro Natural Area Program engaged The Wetland Conservancy to develop a scientific assessment of Metro’s 590-acre Killin Wetlands Natural Area. Metro acquired the lands comprising the KWNA between 2000 and 2012 with funds from two voterapproved open space bond measures. Since 2000, Metro has sought to advance natural area restoration at the site, focusing on the suppression of non-native pasture weeds and planting of native trees and shrubs in higher parts of the floodplain and its edges. Most uplands in Metro ownership have been maintained in agriculture through leased partnerships with local farmers.

Metro and its …

Linear Regression Analysis On Net Income Of An Agrochemical Company In Thailand, Supichaya Sunthornjittanon

University Honors Theses

The purpose of this research is to analyze the ABC Company’s data and verify whether the regression analysis methods and models would work effectively in the ABC Company based in Bangkok, Thailand. After the data are collected, models are created to examine the contribution of each of the company's financial factors to the net income of the company. The final model is selected using Stepwise Regression Methods. A linear regression line and equation for the model are generated to help observe and predict future trends. The model also shows which variables play the most important roles in the company's net …

Fostering Critical Thought Alongside The Common Core State Standards, Bianca Arias

University Honors Theses

This thesis evaluates a segment of the second grade English language arts and literacy (ELA) curriculum presently utilized in Portland Public Schools (PPS) school district in Portland, Oregon, using five principles for evaluation. These principles address the extent to which lessons are hands-on, engage home life, integrate the academic disciplines, encourage student autonomy, and are relevant to society today. These criteria were established following a review of John Dewey’s ideas and philosophies, and of two practices that model Deweyan principles: Project-Based Learning (PBL) and progettazione in the Municipal Infant/Toddler Centers and Preschools of Reggio-Emilia, Italy. This analysis of the ELA …

That Mysterious, Remisse Knot: Katherine Philips's Unincorporated Fraternity, Rene Kramer

University Honors Theses

Recent critics in early modern poetry, women’s literature, and queer studies have attempted to factor Katherine Philips’s friendship poetry into a history of homoerotic suspicion. Her metaphysical poems have been offered as a publically significant, potential erotics of textual, rather than physical, embodiment. This thesis responds by returning to the significance of the in-significance of textual representations of feminine erotics, as well as to earlier criticism of Philips as a poet of non-public life and chastity. An examination of notions of innocence in Philips’s configurations of friendship highlights an excess of innocence and a passion predicated on exception, restraint, and …

Analyzing Riboswitches As A Function Of Genome Size And Genus Ancestry In Gammaproteobacteria, Robyn Reid

University Honors Theses

Riboswitches are RNA molecules that regulate gene expression, without the need for protein factors, at the mRNA level in the bacterial kingdom. This paper focuses on nine riboswitches: TPP, FMN, SAM, Lysine, Cobalamine, Glycine, Molybdenum, Mg, and SAH, and whether or not there exists a relationship between genome size and riboswitch existence. The hypothesis of this paper is that there does exist a direct relationship because it is assumed that the more basepairs (bp) in a genome, the higher the chance that an old characteristic, such as a riboswitch, is conserved. Three hundred twenty members of the gammaproteobacteria class were …

On The Role Of Probability In Hume's Imagination And Associationism: A Bayesian Response To Fodor's Hume Variations, Jason Krivo Flores

University Honors Theses

In his 2003 book Hume Variations, Jerry Fodor argues the Computational Theory of Mind (CTM) has obviated the need for Hume's associationism and faculty of imagination. Contrary to Fodor, in this paper I argue that contemporary Bayesian models of cognitive science suggest that Hume’s account continues to comprise a viable theory of mental operations. I propose a Bayesian interpretation of Hume's associationism wherein the "liberty of the imagination to transpose and change its ideas" is accounted for by the contributions of randomness, noise, or stochasticity--i.e., probability.

If my analysis is on track, Fodor has misconstrued the Humean mind by interpreting …

A Portrait Of Hope: A Beginning Teacher Learns About Community, Kathleen Cowin

Northwest Journal of Teacher Education

A question listed in the call for this issue was: What are the sources and examples of hope for teachers, school leaders, and students as experienced and gained through learning,…, [and] community connections? This portrait of a beginning teacher’s experiences learning about community as she navigates her first year of teaching provides a way for readers to think about how to develop community within a classroom and school, the roles members of a school community play in community development, and how mentoring may influence community building. Through portraiture methodology (Lawrence-Lightfoot & Davis, 1997) the reader will glimpse a deeper view …

Annual Faculty Senate Minutes October 2015 - June 2016, Portland State University Faculty Senate

Annual Compilations of the Faculty Senate Minutes (Minutes Only)

Minutes of the Faculty Senate for October 2015 to June 2016.

Integrating Information Literacy, The Pogil Method, And Ipads Into A Foundational Studies Program, Carrie Moore, Jennifer Black, Barbara C. Glackin, Margie Ruppel, Elaine Watson

Library Faculty and Staff Publications and Presentations

This article provides an overview of the design, implementation, revision and informal assessment of an information literacy curriculum embedded in a new University Foundations (UF) program at a mid‐sized public university. The library information literacy sessions incorporated teambased learning and Process Oriented Guided Inquiry Learning (POGIL) elements using iPads. Each session provided students an opportunity to develop and apply information literacy skills, and included critical thinking questions which led students to think about underlying concepts. A focus group with the librarians assessed the UF library curriculum, its impact on student engagement, and the training activities for librarian teaching preparation.

An Ornithological Investigation Of The Relationships Among Species Assemblages In Diverse Landscapes In Portland, Oregon, Trevor Attenberg

Environmental Science and Management Professional Master's Project Reports

This study involves geographic variables of the urban landscape and how they affect bird species assemblage. I utilized bird point count data from observation sites in the Portland, OR metropolitan region provided by Portland Environmental Services. Species data and its relationship with environmental variables were evaluated using Bray-Curtis Dissimilarity measurements together with Non-metric Multidimensional scaling (NMDS) to provide a clear image of the spatial relationships between sites. Land classification, water and canopy in 500 m buffers were quantified in order to describe important geographic variability among collection areas of bird data. Patterns indicating spatial trends in the urban landscape emerged. …

Structuring Creativity: Successful Strategies For Using Creative Activities In The Classroom, Ellen West, Dannelle D. Stevens, Candyce Reynolds

Education Faculty Publications and Presentations

From the political to the environmental, the 21st century presents a dizzying array of challenges for current and future generations. Society needs people who have the confidence to explore unique ideas and the willingness to take risks in shaping and sharing those ideas. Where will we prepare and encourage people to be creative? Is it in our universities? How can faculty members help our students learn to envision new, unusual and, in fact, creative solutions to ensure a better life for all? The purpose of this chapter is twofold: first, to show how three faculty members from three different disciplines …

Oregon Lake Watch, 2015 Annual Report, Samuel Cimino, Rich Miller, Angela L. Strecker

Center for Lakes and Reservoirs Publications and Presentations

The Oregon Lake Watch (OLW) volunteer monitoring program completed its third year of operation during 2015 with a focus on early detection of aquatic invasive species (AIS) and water quality status and trend assessments for the better management of Oregon’s lakes and reservoirs. AIS surveys emphasized the detection of Watch List aquatic plant and species that can have a negative impacts on the beneficial uses of our waterbodies. Water transparency and temperature measurements were used to track the condition of volunteers' lakes.

Thirty-one Oregon lakes have been surveyed during the OLW’s three years, 16 of which were surveyed during 2015. …

Patterns And Processes Of Salt Efflorescences In The Mcmurdo Region, Antarctica, Kelsey M. Bisson, Kathleen A. Welch, Susan A. Welch, Julia Meyer Sheets, W. Berry Lyons, Joseph S. Levy, Andrew G. Fountain

Geology Faculty Publications and Presentations

Evaporite salts are abundant around the McMurdo region, Antarctica (~78°S) due to very low precipitation, low relative humidity, and limited overland flow. Hygroscopic salts in the McMurdo Dry Valleys (MDVs) are preferentially formed in locations where liquid water is present in the austral summer, including along ephemeral streams, ice-covered lake boundaries, or shallow groundwater tracks. In this study, we collected salts from the Miers, Garwood, and Taylor Valleys on the Antarctic continent, as well as around McMurdo Station on Ross Island in close proximity to water sources with the goal of understanding salt geochemistry in relationship to the hydrology of …

Moscap Oxide Charges, August George

University Honors Theses

Transistors form the backbone of digital devices, allowing for amplification and digital "switching" of electrical signals. One of the simplest devices is the Metal-Oxide-Semiconductor Capacitor (MOSCAP). The MOSCAP is analogous to a parallel plate capacitor with the Si wafer and metal layer corresponding to the positive and negative plates, and the oxide layer corresponding to the dielectric material. During the fabrication process it is likely that trapped charge impurities will become incorporated into the oxide layer of the MOSCAP. This thesis project will examine the effects of these charges on the capacitance and voltage characteristics of a MOSCAP.

Drift Of Plumes In The Mantle, Luke Douglas Brown

University Honors Theses

We quantified the fixity of mantle plumes relative to the mantle in high Rayleigh number numerical thermal convection with radially- and temperature-dependent viscosity structures in a 3D spherical shell geometry. The relative velocities between plumes and the mantle increased with increasing Rayleigh number. Net migration rates of plumes vary from ~0.016-0.053 °/Myr, and differential plume velocities can be up to ~25% of past- and present-day rates of net lithospheric rotation. Individual plumes migrate on average at ~0.0617-0.223 °/Myr for Rayleigh numbers between 1·10⁷ and 2·10⁸. We compared the ratio of plume velocity to horizontal average velocity (a) …

Analytic Thinking Predicts Vaccine Endorsement: Linking Cognitive Style And Affective Orientation Toward Childhood Vaccination, Daniel A. Anderson

University Honors Theses

Though popular opinion in the US is favorable toward vaccination, a growing hesitancy to vaccinate children threatens rates of uptake and coverage. In response, researchers now study psychological factors thought to influence vaccine-decisions, as having this information might be useful in addressing vaccine hesitancy in the clinic and beyond. The present thesis reviews evidence from this body of work, and shares results of a new study on the influence of analytic and intuitive thinking styles upon endorsement of childhood vaccines. In a national sample (N = 543), analytic thinking predicted endorsement alone and in the presence of covariates in …

The Majorization Minimization Principle And Some Applications In Convex Optimization, Daniel Giles

University Honors Theses

The majorization-minimization (MM) principle is an important tool for developing algorithms to solve optimization problems. This thesis is devoted to the study of the MM principle and applications to convex optimization. Based on some recent research articles, we present a survey on the principle that includes the geometric ideas behind the principle as well as its convergence results. Then we demonstrate some applications of the MM principle in solving the feasible point, closest point, support vector machine, and smallest intersecting ball problems, along with sample MATLAB code to implement each solution. The thesis also contains new results on effective algorithms …