Scientific Workflow Makespan Minimization In Edge Multiple Service Providers Environment

Abstract The edge computing model offers an ultimate platform to support scientific and real-time workflow-based applications over the edge of the network. However, scientific workflow scheduling and execution still facing challenges such as response time management and latency time. This leads to deal with the acquisition delay of servers, deployed at the edge of a network and reduces the overall completion time of workflow. Previous studies show that existing scheduling methods consider the static performance of the server and ignore the impact of resource acquisition delay when scheduling workflow tasks. Our proposed method presented a meta-heuristic algorithm to schedule the scientific workflow and minimize the overall completion time by properly managing the acquisition and transmission delays. We carry out extensive experiments and evaluations based on commercial clouds and various scientific workflow templates. The proposed method has approximately 7.7% better performance than the baseline algorithms, particularly in overall deadline constraint that gives a success rate.

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A Novel Completion-Time-Minimization Scheduling Approach of Scientific Workflows Over Heterogeneous Cloud Computing Systems

International Journal of Web Services Research ◽

10.4018/ijwsr.2019100101 ◽

2019 ◽

Vol 16 (4) ◽

pp. 1-20

Author(s):

S. Sabahat H. Bukhari ◽

Yunni Xia

Keyword(s):

Cloud Computing ◽

Time Management ◽

Completion Time ◽

Large Scale ◽

Scientific Workflow ◽

Scientific Workflows ◽

Transmission Delays ◽

Computing Paradigm ◽

Heterogeneous Cloud ◽

The Impact

The cloud computing paradigm provides an ideal platform for supporting large-scale scientific-workflow-based applications over the internet. However, the scheduling and execution of scientific workflows still face various challenges such as cost and response time management, which aim at handling acquisition delays of physical servers and minimizing the overall completion time of workflows. A careful investigation into existing methods shows that most existing approaches consider static performance of physical machines (PMs) and ignore the impact of resource acquisition delays in their scheduling models. In this article, the authors present a meta-heuristic-based method to scheduling scientific workflows aiming at reducing workflow completion time through appropriately managing acquisition and transmission delays required for inter-PM communications. The authors carry out extensive case studies as well based on real-world commercial cloud sand multiple workflow templates. Experimental results clearly show that the proposed method outperforms the state-of-art ones such as ICPCP, CEGA, and JIT-C in terms of workflow completion time.

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Monitoring the impact of COVID-19 in Myanmar: Mechanization service providers – June 2020 survey round in Burmese

10.2499/p15738coll2.133853 ◽

2020 ◽

Author(s):

Hiroyuki Takeshima ◽

Myat Thida Win ◽

Ian Masias

Keyword(s):

Service Providers ◽

Survey Round ◽

The Impact

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Comprehensive Effects of Short-Term Rental Platforms Across Hotel Types in U.S. and International Destinations

Cornell Hospitality Quarterly ◽

10.1177/19389655211033527 ◽

2021 ◽

pp. 193896552110335

Author(s):

John W. O’Neill ◽

Jihwan Yeon

Keyword(s):

Service Providers ◽

Comprehensive Analysis ◽

Competitive Market ◽

Substitution Effects ◽

Short Term ◽

Hotel Performance ◽

The World ◽

Different Types ◽

Location Type ◽

The Impact

In recent years, short-term rental platforms in the lodging sector, including Airbnb, VRBO, and HomeAway, have received extensive attention and emerged as potentially alternative suppliers of services traditionally provided by established commercial accommodation providers, that is, hotels. Short-term rentals have dramatically increased the available supply of rooms for visitors to multiple international destinations, potentially siphoning demand away from hotels to short-term rental businesses. In a competitive market, an increase in supply with constant demand would negatively influence incumbent service providers. In this article, we examine the substitution effects of short-term rental supply on hotel performance in different cities around the world. Specifically, we comprehensively investigate the substitution effects of short-term rental supply on hotel performance based on hotel class, location type, and region. Furthermore, we segment the short-term rental supply based on its types of accommodations, that is, shared rooms, private rooms, and entire homes, and both examine and quantify the differential effects of these types of short-term rentals on different types of hotels. This study offers a comprehensive analysis regarding the impact of multiple short-term rental platforms on hotel performance and offers both conceptual and practical insights regarding the nature and extent of the effects that were identified.

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Exploring the Impact of Technology-Facilitated Abuse and Its Relationship with Domestic Violence: A Qualitative Study on Experts’ Perceptions

Global Qualitative Nursing Research ◽

10.1177/23333936211028176 ◽

2021 ◽

Vol 8 ◽

pp. 233339362110281

Author(s):

Renee Fiolet ◽

Cynthia Brown ◽

Molly Wellington ◽

Karen Bentley ◽

Kelsey Hegarty

Keyword(s):

Domestic Violence ◽

Service Providers ◽

Structured Interviews ◽

Specialist Service ◽

Data Coding ◽

Integral Role ◽

Impact Of Technology ◽

The Impact ◽

The Relationship ◽

Inductive Thematic Analysis

Technology-facilitated abuse can be a serious form of domestic violence. Little is known about the relationship between technology-facilitated abuse and other types of domestic violence, or the impact technology-facilitated abuse has on survivors. The aim of this interpretative descriptive study is to understand domestic violence specialist service providers’ perspectives on the impact of technology-facilitated abuse, and the link between technology-facilitated abuse and other forms of domestic violence. A qualitative approach using 15 semi-structured interviews were undertaken with Australian domestic violence specialist practitioners, and three themes were identified through data coding using inductive thematic analysis. Another form of control describes technology-facilitated abuse behaviors as enacting controlling behaviors using new mediums. Amplifies level of fear characterizes the impact of technology-facilitated abuse. A powerful tool to engage others describes opportunities technology offers perpetrators to abuse through engaging others. Findings highlight technology-facilitated abuse’s complexity and integral role in domestic violence and can assist clinicians to understand the impact and harm that can result from technology-facilitated abuse.

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The Impact of Live Cases on Student Skill Development in Marketing Courses

Journal of Marketing Education ◽

10.1177/02734753211034553 ◽

2021 ◽

pp. 027347532110345

Author(s):

Shannon Cummins ◽

Jeff S. Johnson

Keyword(s):

Time Management ◽

Learning Experience ◽

Skill Development ◽

Handling Time ◽

Thinking Skills ◽

Critical Thinking Skills ◽

Small Samples ◽

Conflict Handling ◽

Student Skill ◽

The Impact

Live cases, where students work directly with an outside organization to solve real-world problems, can be an immersive learning experience for marketing students. Current scholarship on live case usage in marketing is limited to small samples from a handful of live case devotees. This article draws from a large, international sample of 169 marketing educators to investigate the perceived educational impacts of live cases on student skill development. Specifically, the paper explores student teamwork, conflict handling, time management, presentation, communication, and critical thinking skills. Additionally, the article explores how student skill development is affected by the amount of course time dedicated to the live case as well as faculty experience with live cases.

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Elementary General Music Performances and Teachers’ Perceptions of Stress

Update Applications of Research in Music Education ◽

10.1177/87551233211010401 ◽

2021 ◽

pp. 875512332110104

Author(s):

Jennifer Potter

Keyword(s):

Time Management ◽

Music Teachers ◽

Management Control ◽

Elementary Music ◽

General Music ◽

Teachers Perceptions ◽

Time Control ◽

Elementary General Music ◽

And Performance ◽

The Impact

The purpose of investigation was to examine the perceptions of elementary music teachers concerning the preparation of elementary music performances and the impact on their perceived stress. Participants were practicing elementary general music teachers ( N = 3) representing three different elementary schools from a metropolitan area in the Midwest. All participants were interviewed twice over a period of two months via Zoom. Data were analyzed through an open coding process (Gibbs, 2007), which yielded three themes: time management, control, and isolation. Facets of time management included strategic planning, organizational techniques, and instructional time; control concerned scheduling, repertoire selection, equipment, and performance venues; and isolation pertained to relationships with colleagues and administrators and an overwhelming amount of responsibility. These findings indicate the importance of acknowledging various stressors affecting music educators and how those might positively and negatively affect teachers and students.

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Evaluating the Impact of State Policy Interventions for LGBT Aging: Comparative Case Study of New York and California

Innovation in Aging ◽

10.1093/geroni/igaa057.2340 ◽

2020 ◽

Vol 4 (Supplement_1) ◽

pp. 674-674

Author(s):

Austin Oswald ◽

Nancy Giunta ◽

Tim Johnston ◽

Sherrill Wayland

Keyword(s):

New York ◽

Service Providers ◽

Secondary Data ◽

Comparative Case Study ◽

Policy And Practice ◽

Sensitivity Training ◽

Attitudinal Differences ◽

Group Interest ◽

The Impact ◽

Lgbt Aging

Abstract The majority of aging network service providers are unprepared to deliver targeted services to lesbian, gay, bisexual, or transgender (LGBT) older adults. In 2017, California legislature mandated ongoing LGBT sensitivity training for congregate living providers. Services and Advocacy for GLBT Elders (SAGE) developed a specialized training, Creating Inclusive Communities, for congregate living staff to learn the unique needs of LGBT elders. This secondary data analysis compared pre-test knowledge and attitudes of training participants in two states, one mandating LGBT aging sensitivity training (California, N=328) and one without the mandate (New York, N=622). Preliminary results show that prior to receiving training, California participants demonstrate significantly less knowledge of LGBT aging issues compared to New York participants; t(948)=-3.808, p<.001. Attitudinal differences were also demonstrated. These results suggest that laws mandating LGBT sensitivity training may help reach providers with greater training needs. Policy and practice implications will be discussed. Part of a symposium sponsored by Rainbow Research Group Interest Group.

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The Impact of Notification Modality and Ambient Sound on Users’ Mobile Interaction

Symmetry ◽

10.3390/sym13030395 ◽

2021 ◽

Vol 13 (3) ◽

pp. 395

Author(s):

Chien-Hsiung Chen ◽

Miao Huang

Keyword(s):

Completion Time ◽

Sampling Method ◽

Sound Level ◽

Task Completion ◽

Maze Task ◽

Task Completion Time ◽

Mobile Interaction ◽

Ambient Sound ◽

Convenience Sampling ◽

The Impact

This study investigated the impacts of different notification modalities used in low and high ambient sound environments for mobile phone interaction. Three different notification modalities—Shaking Visual, Shaking Visual + Vibration, and Vibration—were designed and experimentally tested by asking users to conduct a maze task. A total of 72 participants were invited to take part in the experiment through the convenience sampling method. The generated results indicated that (1) the notification modality affects participants’ task completion time, (2) the error rate pertinent to the number of notifications is positively related to the participants’ task completion time, and (3) the ambient sound level and notification modalities impact the overall experience of the participants. The main contributions of this study are twofold. First, it verifies that the multi-dimensional feature of a Shaking Visual + Vibration synesthesia notification design is implementable. Second, this study demonstrated that the synesthesia notification could be feasible for mobile notification, and it was more perceptible by the users.

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An Exploration of the Critical Risk Factors in Sustainable Telecom Services: An Analysis of Indian Telecom Industries

Sustainability ◽

10.3390/su13020445 ◽

2021 ◽

Vol 13 (2) ◽

pp. 445

Author(s):

Wen-Kuo Chen ◽

Venkateswarlu Nalluri ◽

Suresh Ma ◽

Mei-Min Lin ◽

Ching-Torng Lin

Keyword(s):

Risk Factors ◽

Supply Chain ◽

Supply Chain Management ◽

Service Providers ◽

Telecommunications Industry ◽

Sustainable Supply Chain ◽

Chain Management ◽

Sustainable Supply Chain Management ◽

The Impact ◽

The Relationship

Different sources of risk factors can occur in sustainable supply chain management due to its complex nature. The telecommunication service firm cannot implement multiple improvement practices altogether to overcome the risk factors with limited resources. The industries should evaluate the relationship between risk factors and explore the determinants of improvement measures. The purpose of the present study is to identify and analyze critical risk factors (CRFs) for enhancing sustainable supply chain management practices in the Indian telecommunication industry using interpretive structural modelling (ISM). Risk factors are identified through a literature survey, and then with the help of experts, nine CRFs are identified using a fuzzy Delphi method (FDM). The relationship among these CRFs has been analyzed using ISM, and the driving and the dependence power of those CRFs are analyzed. Results indicate that both “government policies (laws and regulations)” and “the impact of rapid change in technology” are independent or key factors that affect the sustainability of the telecommunications supply chain. In addition, results provide significant managerial implications, including enhanced sustainability, and the government should build justice, fairness, open laws, certainties, and regulations to prevent risk in the telecommunications industry supply chain; service providers should monitor the rapidly evolving technologies and focus on technical learning and organizational capacity development to overcome the impact of technological changes. The contribution of this study is using a novel approach to establish a hierarchical structural model for an effective understanding of CRFs relationships and to explore decisive risk factors that can help telecom service providers to better plan and design effective improvement strategies to enhance sustainability supply chain management.

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