Digital Commons Network^™

Autopruner: Transformer-Based Call Graph Pruning, Cong Thanh Le, Hong Jin Kang, Truong Giang Nguyen, Stefanus Agus Haryono, David Lo, Xuan-Bach D. Le, Huynh Quyet Thang

Research Collection School Of Computing and Information Systems

Constructing a static call graph requires trade-offs between soundness and precision. Program analysis techniques for constructing call graphs are unfortunately usually imprecise. To address this problem, researchers have recently proposed call graph pruning empowered by machine learning to post-process call graphs constructed by static analysis. A machine learning model is built to capture information from the call graph by extracting structural features for use in a random forest classifier. It then removes edges that are predicted to be false positives. Despite the improvements shown by machine learning models, they are still limited as they do not consider the source code …

Efficient Navigation For Constrained Shortest Path With Adaptive Expansion Control, Wenwen Xia, Yuchen Li, Wentian Guo, Shenghong Li

Research Collection School Of Computing and Information Systems

In many route planning applications, finding constrained shortest paths (CSP) is an important and fundamental problem. CSP aims to find the shortest path between two nodes on a graph while satisfying a path constraint. Solving CSPs requires a large search space and is prohibitively slow on large graphs, even with the state-of-the-art parallel solution on GPUs. The reason lies in the lack of effective navigational information and pruning strategies in the search procedure. In this paper, we propose SPEC, a Shortest Path Enhanced approach for solving the exact CSP problem. Our design rationales of SPEC rely on the observation that …

How To Formulate Specific How-To Questions In Software Development?, Mingwei Liu, Xin Peng, Andrian Marcus, Christoph Treude, Jiazhan Xie, Huanjun Xu, Yanjun Yang

Research Collection School Of Computing and Information Systems

Developers often ask how-to questions using search engines, technical Q&A communities, and interactive Q&A systems to seek help for specific programming tasks. However, they often do not formulate the questions in a specific way, making it hard for the systems to return the best answers. We propose an approach (TaskKG4Q) that interactively helps developers formulate a programming related how-to question. TaskKG4Q is using a programming task knowledge graph (task KG in short) mined from Stack Overflow questions, which provides a hierarchical conceptual structure for tasks in terms of [actions], [objects], and [constraints]. An empirical evaluation of the intrinsic quality of …

In War And Peace: The Impact Of World Politics On Software Ecosystems, Raula Kula, Christoph Treude

Research Collection School Of Computing and Information Systems

Reliance on third-party libraries is now commonplace in contemporary software engineering. Being open source in nature, these libraries should advocate for a world where the freedoms and opportunities of open source software can be enjoyed by all. Yet, there is a growing concern related to maintainers using their influence to make political stances (i.e., referred to as protestware). In this paper, we reflect on the impact of world politics on software ecosystems, especially in the context of the ongoing War in Ukraine. We show three cases where world politics has had an impact on a software ecosystem, and how these …

Inception Transformer, Chenyang Si, Weihao Yu, Pan Zhou, Yichen Zhou, Xinchao Wang, Shuicheng Yan

Research Collection School Of Computing and Information Systems

Recent studies show that Transformer has strong capability of building long-range dependencies, yet is incompetent in capturing high frequencies that predominantly convey local information. To tackle this issue, we present a novel and general-purpose Inception Transformer, or iFormer for short, that effectively learns comprehensive features with both high- and low-frequency information in visual data. Specifically, we design an Inception mixer to explicitly graft the advantages of convolution and max-pooling for capturing the high-frequency information to Transformers. Different from recent hybrid frameworks, the Inception mixer brings greater efficiency through a channel splitting mechanism to adopt parallel convolution/max-pooling path and self-attention path …

A Decade Of Job Prospects In The Librarianship Profession, Akwasi Duffour Frimpong, Anthony Obeng Mr.

Library Philosophy and Practice (e-journal)

ABSRACT

From 2010 to 2020, the study examined job advertisements for library practitioners in Ghana. The study results reveal no substantial changes over a ten-year period. Notwithstanding, job opportunities have gradually increased. In both 2010 and 2020, Assistant Librarians had more job openings than Librarians which is the topmost position in the library profession. Higher degrees of Ph.D. and MPhil are mostly the requisite for any positions, but most jobs require a Master of Arts in Information Studies or Information Science or Bachelor of Arts in Information Science. Despite the fact that technology is permeating job openings in libraries, employers …

Buyer Beware: Avoiding Pitfalls When Buying Fine Art, Gerard Ng, Vincent Ooi

Research Collection Yong Pung How School Of Law

Our article introduces the reader to crucial concepts such as provenance, authenticity and ownership of fine art. It explains how one can check the established art databases and registers to conduct due diligence searches.We also explain the importance of a written contract for both buyers and sellers. The current common practice of transacting without a written contract can lead to considerable difficulties if issues with the artwork are discovered in the future.At the minimum, a contract should make it clear that the seller has the full responsibility for the accuracy of the provenance, particularly in cases where the artwork has …

The Curious Case Of The 0.1 Per Cent Service Charge, Vincent Ooi

Research Collection Yong Pung How School Of Law

Just before 1 August 2022, a coffeeshop zi char chain announced that it would impose a 0.1% service charge. This decision was reversed within two weeks due to "customers' reactions".While the rate might appear to be absurdly low and not worth the trouble of imposing, this article suggests that there was more to the situation than first meets the eye. GST regulations require merchants to list GST inclusive prices unless the goods and services are provided by hotels and F&B outlets that are subject to a service charge. The 0.1% rate is thus explicable as a likely attempt to get …

Privacy Qui Tam, Peter Ormerod

Faculty Publications

Privacy law keeps getting stronger, but surveillance-based businesses have proven immune to these new legal regimes. The disconnect between privacy law in theory and in practice is a multifaceted problem, and one critical component is enforcement.

Today, most privacy laws are enforced by governmental regulators—the Federal Trade Commission, the nascent California Privacy Protection Agency, and state attorneys general. An enduring impasse for proposed privacy laws is whether to supplement public enforcement by using a private right of action to authorize individuals to enforce the law.

Both of these conventional enforcement schemes have significant shortcomings. Public enforcement has proven inadequate because …

Commentary: Examining Contextual Factors Contributing To Differentials In Covid-19 Mortality In U.S. Vs. India., Preeti Zanwar, Katrine L Wallace, Christopher Soria, Arokiasamy Perianayagam

College of Population Health Faculty Papers

No abstract provided.

Digital Services Trade And Trade Agreements, Henry S. Gao

Research Collection Yong Pung How School Of Law

Trade agreements have become the main forum for the regulation of digital services trade issues over the past decade. This chapter provides a comprehensive examination of the regulation of digital services trade in trade agreements, first reviewing the rules in the World Trade Organization (WTO), then comparing the approaches between the United States (US), the People’s Republic of China (PRC), and the European Union (EU), and explaining the reasons for their deep differences. This chapter further analyzes such provisions in trade agreements in Asia and the Pacific, which has become one of the most dynamic regions in terms of new …

The Investment Chapter In The Regional Comprehensive Economic Partnership: Enhanced Rules Without Enforcement Mechanism, Henry S. Gao

Research Collection Yong Pung How School Of Law

This Chapter examines the legal rules in the investment chapter in the Regional Comprehensive Economic Partnership (RCEP). It starts with an overview and summary of the main provisions in the chapter, followed by an assessment of the rules by comparing established free trade agreements (FTAs), especially the Comprehensive and Progressive Trans-Pacific Partnership. In particular, it notes that the chapter, whilst largely following the established approaches to investment in other FTAs, also includes important twists to the common rules to favour the host states. The last part discusses the conspicuous absence of an investor-state dispute settlement mechanism, its pros and cons, …

Book Review: Mediation Ethics: A Practitioner's Guide Edited By Omer Shapira Ed, Dorcas Quek Anderson

Research Collection Yong Pung How School Of Law

A review of the book Mediation ethics: A practitioner's guide, edited by Omer Shapira. Mediation ethics have been consistently featured in mediation training courses and mediation ethical principles have also been encapsulated in mediation providers’ codes of conduct for mediators. However, mediation ethics have probably inspired fewer publications and academic discussions than the popular topic of mediation skills. It is thus timely that Shapira has edited this publication focusing on mediation ethics. Published in 2021, this collection of reflections on mediation ethics has been written primarily for the American mediation profession, with frequent references made to the US Model Standards …

How I Perform Totally Endoscopic Robotic Mitral Valve Repair., Colin C Yost, Jake L Rosen, Meagan Wu, Caroline M Komlo, Jordan E Goldhammer, T Sloane Guy

Department of Medicine Faculty Papers

A sixty-two-year-old male presented with significant symptoms related to severe mitral regurgitation with posterior leaflet flail and prolapse on transesophageal echocardiogram (TEE). Preoperative computed tomography (CT) angiography showed normal caliber thoracoabdominal aorta and patent access vessels. The patient underwent totally endoscopic robotic mitral valve repair (rMVr) with left atrial CryoMAZE procedure.

A Case Of Isolated Cardiac Burkitt Lymphoma Causing Right-Sided Heart Failure, Graham Rector, Stephanie J Koh, Rashed Tabbaa

The Texas Heart Institute Journal

Primary cardiac tumors are rare, as the most common cause of cardiac masses is from metastatic disease. In this article, a unique case of isolated cardiac Burkitt lymphoma causing right-sided heart failure in a 70-year-old man who presented to the emergency department with abdominal distension and lower-extremity swelling is described. The right ventricular mass was initially identified via computed tomographic scans of the abdomen and pelvis. Further workup included transthoracic echocardiogram and cardiac magnetic resonance imaging that showed extension of the mass into the right atrium and pericardium. Staging imaging and bone marrow biopsy revealed no evidence of metastatic disease. …

Can't Really Teach: Crt Bans Impose Upon Teachers' First Amendment Pedagogical Rights, Mary L. Krebs

Vanderbilt Law Review

The jurisprudence governing K-12 teachers’ speech protection has been a convoluted hodgepodge of caselaw since the 1960s when the Supreme Court established that teachers retain at least some First Amendment protection as public educators. Now, as new so-called Critical Race Theory bans prohibit an array of hot button topics in the classroom, K-12 teachers must either preemptively censor themselves or risk running afoul of these vague bans with indeterminate legal protection. This Note proposes an elucidation of K-12 teachers’ free speech rights via a two-part test to assess the reasonability of instructional speech. Rather than analogizing K-12 teacher speech to …

Societal Impact Assessment Of Depression, Mohammed Salah Almazrouei

Theses

Depression is a mental problem characterised by unusual changes in the mood of a person, accompanied by a temporary different emotional response to everyday changes in the phenomena (WHO, 2020). Affected people suffer greatly, hence functioning poorly in the workplace, school, or at home in a family setup. Even though the public is well aware of its existence, there is little going on to combat this condition. Amongst the various stumbling blocks towards achieving an effective approach to address the problem include limited resources and associated well-trained personnel to help the victims.

A mental disorder associated with social stigma and …

Regulating Global Stablecoins: A Model-Law Strategy, Steven L. Schwarcz

Vanderbilt Law Review

Digital currencies have the potential to improve the speed and efficiency of the payment system. The principal challenge is retail: to facilitate day-to-day payments among consumers as an alternative to cash, both domestically and across national borders. Two models of digital currencies are becoming viable: central bank digital currencies and nongovernment-issued currencies that are backed by assets having intrinsic value (stablecoins or, when widely used internationally, global stablecoins). Because they are not government issued, global stablecoins present complex and novel cross-border regulatory challenges, including managing the costs of complying with a multitude of national laws and ensuring international legal enforceability. …

Two Specialists, Two Recommendations: Discordance Between Urologists' & Radiation Oncologists' Prostate Cancer Treatment Recommendations, Rebecca K Delaney, Brittany L Sisco-Taylor, Xuechen Wang, Karen Scherr, Peter A Ubel, Benjamin Haaland, Valerie C Kahn, Daniel Hamstra, John T Wei, Farrah Madanay, J Kelly Davis, Taylor U Greeno, Angela Fagerlin

Center for Medical Ethics and Health Policy Staff Publications

Objective: To examine the treatment recommendation patterns among urologists and radiation oncologists, the level of concordance or discordance between physician recommendations, and the association between physician recommendations and the treatment that patients received.

Method: The study was a secondary analysis of data from a randomized clinical trial conducted November 2010 to April 2014 (NCT02053389). Eligible participants were patients from the trial who saw both specialists. The primary outcome was physician recommendations that were scored using an adapted version of the validated PhyReCS coding system. Secondary outcomes included concordance between physician recommendations and the treatment patients received.

Results: Participants …

Incidence Trends Of Kaposi Sarcoma Among Young Non-Hispanic Black Men By Us Regions, 2001-2018, Ryan Suk, Donna L White, Sheena Knights, Ank Nijhawan, Ashish A Deshmukh, Elizabeth Y Chiao

Center for Medical Ethics and Health Policy Staff Publications

Despite the overall national decline in Kaposi sarcoma (KS) incidence in the United States among persons living with HIV, previous studies suggest there might be specific subgroups of the US population that are associated with higher KS incidence rates than others. Using the 2001-2018 National Program of Cancer Registries and Surveillance, Epidemiology, and End Results Program database, we assessed KS incidence trends among young men aged 20-34 years by race and ethnicity and geographic region. Statistical significance is 2-sided. The KS incidence rate increased nationally by 1.5% per year in non-Hispanic Black men, whereas the rate decreased statistically significantly by …

National Forest Visitation Preferences And Avenues To Participation For Urban Hispanic Recreationists In The Portland Metropolitan Area (Usa), Lee Cerveny, Rebecca Mclain, David Banis, Matthew Helmer

Geography Faculty Publications and Presentations

Health benefits of outdoor recreation have been broadly demonstrated and land managers recognize the equity implications of providing safe and inclusive outdoor spaces. Data on public lands visitation and outdoor participation show that Hispanic recreationists are less likely to engage in outdoor leisure than White persons. Early studies of outdoor preferences of Hispanic persons identified a desire for large-group settings and social activities. To update our understanding of outdoor recreation needs, preferences, and constraints, we collaborated with a Latinx organization in Portland, Oregon (USA). We collaboratively designed three focus groups that combined structured engagement, cognitive sorting, and participatory mapping to …

Pedestrian Wayfinding Under Consideration Of Visual Impairment, Blindness, And Deafblindness: A Mixed-Method Investigation Into Individual Experiences And Supporting Elements, Martin Swobodzinski, Amy T. Parker, Elizabeth Schaller, Denise Snow

TREC Final Reports

In this report we discuss to-date findings of a project that aimed at assessing individual and environmental affordances in the context of human pedestrian wayfinding of visually impaired, blind, and deafblind travelers in public spaces. Our project afforded collaboration, co-design, and co-creation of knowledge between the investigators, partners at the American Printing House of the Blind and GoodMaps, the Portland State University Digital City Testbed Center, and members of the disability community. The objective of the project was to better understand how different wayfinding aids, that is, wayfinding apps, tactile maps, and verbal route descriptions, are employed by visually impaired, …

"It Made Me Feel Like Things Are Starting To Change In Society:" A Qualitative Study To Foster Positive Patient Experiences During Phone-Based Social Needs Interventions, Anna Steeves-Reece, Christina Nicolaidis, Dawn M. Richardson, Melissa Frangie, Katherin Gomez-Arboleda, Chrystal Barnes, Minnie Kang, Bruce Goldberg, Stephan Lindner, Melinda M. Davis

School of Social Work Faculty Publications and Presentations

Many healthcare organizations are screening patients for health-related social needs (HRSN) to improve healthcare quality and outcomes. Due to both the COVID-19 pandemic and limited time during clinical visits, much of this screening is now happening by phone. To promote healing and avoid harm, it is vital to understand patient experiences and recommendations regarding these activities. We conducted a pragmatic qualitative study with patients who had participated in a HRSN intervention. We applied maximum variation sampling, completed recruitment and interviews by phone, and carried out an inductive reflexive thematic analysis. From August to November 2021 we interviewed 34 patients, developed …

Co-Design Of An Nhs Primary Care Health Check For Autistic Adults, Helen Taylor, Barry Ingham, David Mason, Tracy Finch, Colin Wilson, Clare Scarlett, Sebastian Moss, Christina M. Nicolaidis, Multiple Additional Authors

School of Social Work Faculty Publications and Presentations

Autistic people experience more health conditions and earlier mortality. This study investigated views about a primary care health check for autistic adults to inform its design. Fifty-one people participated in consultation groups and interviews, comprising autistic adults (some with co-occurring intellectual disabilities), adults with intellectual disabilities, supporters and health professionals. Participants wanted the health check to cover physical and mental health and social functioning. They emphasised the importance of sharing information about individual needs and associated adjustments before the health check. They highlighted the need to change the way healthcare services communicate with autistic people, such as reducing phone contact …

A Performance Guide To Michael Patterson's "People Of The Land" For Baritone And Piano, Thaddeus Harm Ennen

LSU Doctoral Dissertations

The purpose of this document is to supply a comprehensive performer’s guide to Iowa composer, Dr. Michael Patterson’s, People of the Land, an eight song, song cycle for baritone and piano, set to poetry by Iowa poet James Hearst. This song cycle was personally commissioned to fulfill a need in the American song cycle literature on the topic of farming and more specifically Iowa farmers. The poetry of James Hearst, farmer and poet, has never been previously set in a song cycle.

People of the Land tells the story of an Iowa farmer from the beginning to end of …

Assessment Of Economic Opportunities For Young Rohingyas In Bangladesh, Md. Noorunnabi Talukder, Md. Irfan Hossain, Abdullah Al Mahmud Shohag, Eashita Haque, Iqbal Ehsan, Joseph Falcone, Ubaidur Rob

Adolescents and Young People

Bangladesh has been hosting nearly a million Rohingyas for the past five years. Since the 1980s, to escape widespread persecution and conflict, Rohingyas have been crossing the border from Myanmar into Bangladesh. Rohingyas are not entitled to, or integrated into, any long-term development agendas of the Bangladesh government. They do not have freedom of movement and permission to work, but they are engaged in some informal income-generating activities in Cox’s Bazar. This study was intended to assess the livelihood and work opportunities, challenges, aspirations, needs, and preferences of young Rohingya populations living in the camps in the Cox’s Bazar district …

“Everything…Fell Apart Once Covid-19 Hit”—Leveraging The Covid-19 Response To Strengthen Public Health Activities Toward Ending The Hiv Epidemic: A Qualitative Study, Samantha A. Devlin, Moctezuma Garcia, Kayo Fujimoto, Camden Hallmark, Marlene Mcneese, John Schneider, Moira C. Mcnulty

Faculty Research, Scholarly, and Creative Activity

COVID-19 caused widespread disruption of activities for Ending the HIV Epidemic (EHE). In this study we assessed public health perspectives on leveraging the COVID-19 response to advance the goals of EHE. We conducted a qualitative study with 33 public health partners in the Midwestern and Southern United States from October 2020 to February 2022. Participants were asked how the strategies developed for COVID-19 could be applied to the HIV epidemic. Interviews were recorded, transcribed, and examined using rapid qualitative analysis. Four themes emerged: (1) Rebuilding teams and adapting culture for success in EHE activities; (2) Recognizing and modernizing the role …

Exploring Latinx Parents’ Experiences With Special Education: Developing A Community-Based Workshop To Empower Latinx Parents Of Children In Special Education, Gabriela Alejandra Perez

Doctoral Dissertations

Parent involvement has been found to be predictive of successful student learning. Under the Individuals with Disabilities Education Act (IDEA), parents are required to be active participants in the development of their child’s special education. Latinx parents of children in special education face various challenges when it comes to parent involvement. A sample size of seven Latinx mothers with children in special education participated in this study, whose aim was to examine Latinx parents’ experiences in navigating the special education process and to identify and explore culturally responsive interventions that can increase parents’ participation and advocacy for their children with …

A Comparison Of Us Medicare Expenditures For Hemodialysis And Peritoneal Dialysis, Jennifer M Kaplan, Jingbo Niu, Vivian Ho, Wolfgang C Winkelmayer, Kevin F Erickson

Center for Medical Ethics and Health Policy Staff Publications

Background: Observations that peritoneal dialysis (PD) may be an effective, lower-cost alternative to hemodialysis for the treatment of ESKD have led to policies encouraging PD and subsequent increases in its use in the United States.

Methods: In a retrospective cohort analysis of Medicare beneficiaries who started dialysis between 2008 and 2015, we ascertained average annual expenditures (for up to 3 years after initiation of dialysis) for patients ≥67 years receiving in-center hemodialysis or PD. We also determined whether differences in Medicare expenditures across dialysis modalities persisted as more patients were placed on PD. We used propensity scores to match 8305 …

Primary Outcomes For Adults Receiving The Unified Protocol After Hurricane Harvey In An Integrated Healthcare Setting, Saira A Weinzimmer, Amy R Goetz, Andrew G Guzick, Lynn M Hana, Sandra L Cepeda, Sophie C Schneider, Sarah M Kennedy, Gifty N Amos Nwankwo, Catherine C Christian, Ashley M Shaw, Alison Salloum, Asim A Shah, Wayne K Goodman, Jill Ehrenreich-May, Eric A Storch

Center for Medical Ethics and Health Policy Staff Publications

The Unified Protocol for Transdiagnostic Treatment of Emotional Disorders (UP) has demonstrated efficacy for treating anxiety and depression. However, there are limited effectiveness data when conducted in real-world settings with diverse populations, including those with trauma. We evaluated treatment outcomes in a naturalistic, community setting among 279 adults who received UP following Hurricane Harvey. We examined change in overall clinical severity, depression and anxiety symptoms, functional impairment, and baseline outcome predictors (i.e., demographic characteristics, impact from Hurricane Harvey, co-occurrence of depression and anxiety symptoms). Global clinical severity, depression and anxiety symptoms, and functional impairment decreased by end-of-treatment. Participants experienced global …