Databases and Information Systems Commons^™

Strategies To Implement Big Data Analytics In Telecommunications Organizations, Delton Aneato

Walden Dissertations and Doctoral Studies

Information Technology (IT) leaders who do not invest in big data projects may struggle to gain a competitive advantage and business insights to improve performance. Grounded in the Kotter’s change and Six Sigma models, the purpose of this qualitative multiple case study was to explore strategies IT leaders used to implement big data analytics successfully. The participants comprised 4 IT leaders from 2 telecommunication organizations in the United States of America, who effectively used strategies to promote and maximize competitive advantage using big data analytics. Data were collected from semistructured interviews, company documents, and project-related documents and were analyzed using …

Obstacles With Data Security: Strategies From Carolina Universities, Yamiah R. Compton

Walden Dissertations and Doctoral Studies

Some university data custodians lack information security strategies to prevent data security breaches. Reducing duplicitous use of personally identifiable information (PII) obtained maliciously from colleges and universities should be important to university data custodians, IT leadership of all levels, state legislators, and individuals that have an interest in moving into the cybersecurity space in higher education. Grounded in general systems theory, the purpose of this multiple qualitative case study was to examine information security strategies that university data custodians use to protect PII collected from staff, students, and other stakeholders. The participants consisted of 15 college and university data custodians …

Strategies For Automating Pharmacovigilance Adverse Event Case Processing, Mythily Easwar

Walden Dissertations and Doctoral Studies

Business leaders who fail to implement innovative technology solutions in their companies face economic distress in these organizations. Guided by the task technology fit model as the conceptual framework, the purpose of this qualitative single case study was to explore strategies used by pharmacovigilance (PV) systems leaders to implement innovative technology solutions. The participants were 4 PV systems managers working in a pharmaceutical company in the Boston area of Massachusetts, United States, who used successful strategies to implement innovative technology solutions to automate adverse events case processing. Data were collected using semistructured interviews and company documents. The collected data were …

Information Technology Disaster Recovery Planning By Florida Nonprofit Organizations, Derek Keith Erfourth

Walden Dissertations and Doctoral Studies

Inadequate information technology (IT) disaster recovery planning (DRP) by nonprofit organizations could lead to organizational failure post-large-scale natural disasters. Without proper funding and planning, organizations may not be able to withstand the effects of a natural disaster resulting in the closure and the community losing a critical need service. Grounded in resilience theory, the purpose of this qualitative multiple case study was to explore strategies utilized by Florida-based nonprofit organization technology managers to adopt and implement an IT DRP to aid in post-natural disaster recovery efforts. The data collection included interviews with 5 IT managers and reviews of 4 business …

Implementing Cloud-Based Enterprise Resource Planning Solutions In Small And Medium Enterprises, Ali Hamdar

Walden Dissertations and Doctoral Studies

Lacking strategies to implement a cloud-based enterprise resource planning (ERP) solution in small and medium-sized enterprises (SMEs) can lead to a failed implementation. SME owners can improve company performance by integrating company processes by successfully implementing a cloud-based ERP solution. Grounded in the diffusion of innovation theory augmented with business process management design for Six Sigma, the purpose of this qualitative multiple case study was to explore strategies SME owners use to implement cloud-based ERP solutions. The participants consisted of 4 SME owners in Lebanon who successfully implemented a cloud-based ERP solution and improved company performance and growth. Data were …

Exploring Mid-Market Strategies For Big Data Governance, Kenneth Stanley Knapton Iii

Walden Dissertations and Doctoral Studies

Many data scientists are struggling to adopt effective data governance practices as they transition from traditional data analysis to big data analytics. Data governance of big data requires new strategies to deal with the volume, variety, and velocity attributes of big data. The purpose of this qualitative multiple case study was to explore big data governance strategies employed by data scientists to provide a holistic perspective of those data for making decisions. The participants were 10 data scientists employed in multiple mid-market companies in the greater Salt Lake City, Utah area who have strategies to govern big data. This study’s …

Leadership Styles And Emotional Intelligence Of Federal Employees In Diversified Work Environments, Richard Lopez

Walden Dissertations and Doctoral Studies

On the Office of Personnel Management Federal Viewpoint Surveys, followers rated their leaders as ineffective. The public expects federal government leaders to effectively lead their followers in order to efficiently manage public services. The purpose of this correlational nonexperimental study was to determine whether there is a correlation between emotional intelligence (EQ) and a full range of leadership styles, as measured by the multileadership questionnaire (MLQ), from the perspective of the follower. Grounded in the theory of EQ, the extant scholarly literature revealed EQ skills complements leadership styles and predict leader success in a variety of business sectors, cultures, and …

Enterprise Resource Planning Implementation In Higher Education: Cost Containment Strategies, Tysha K. Tolefree

Walden Dissertations and Doctoral Studies

Lack of effective cost containment strategies to support enterprise resource planning (ERP) system implementations within higher education institutions (HEIs) result in budget overruns 50% of the time. Grounded in Gartner’s IT cost containment techniques, the purpose of this qualitative multiple case study was to explore strategies HEI project directors use to support a successful ERP implementation on time and within budget. The participants comprised 5 project directors and managers from HEIs and another public organization in the state of Washington. Data were collected from semistructured interviews, archival data, and organization documents. Thematic analysis was used to analyze the data, and …

Factors Affecting Electronic Banking Adoption In Barbados, Jacqueline Delores Bend

Walden Dissertations and Doctoral Studies

The low rate of customers' adoption of electronic banking services affects retail banks' profitability. The operating cost for a financial transaction performed by bank tellers averages US$1.07 compared to US$0.01 using electronic banking channels. It is paramount for retail banking leaders to understand the factors influencing customer adoption of electronic banking to sustain competitive advantage. Grounded in the technology acceptance model framework, the purpose of this quantitative correlational study was to examine the relationship between perceived usefulness (PU), perceived ease of use (PEOU), and customer adoption of electronic banking in Barbados. The validated technology acceptance model survey instrument was used …

Strategies Used To Mitigate Social Engineering Attacks, Lindiwe T. Hove

Walden Dissertations and Doctoral Studies

Cybercriminal activity performed widely through social engineering attacks is estimated to be one of the substantial challenges the world will face over the next 20 years. Cybercriminal activity is important to chief information security officers (CISOs) because these attacks represent the largest transfer of economic wealth in history and pose risks to the incentives for organizational innovation and investment and eventually become more profitable than the global trade of all major illegal drugs combined. Grounded in the balanced control theory, the purpose of this multiple case study was to explore strategies CISOs use to mitigate social engineering attacks within their …

Evaluation Of Telehealth Applications For Patients Seeking Hospice Care, Victoria Emma Surujlall

Walden Dissertations and Doctoral Studies

Telehealth (TH) is one of the newest avenues for improving accessibility and healthcare accommodations for patients with chronic health issues and terminal illness. The purpose of a quality improvement (QI) initiative at the project site was to align current evidence-based practice to address the disparities in the admissions process experienced by patients seeking hospice care from remote locations. The health belief model and Roger's diffusion of innovation theory were used to inform this doctor of nursing QI evaluation project to determine whether using a standardized evidence-based intake assessment process delivered by TH would increase accessibility for patients seeking hospice services. …

Youth Leadership Development Program Evaluation, Loreley Lyn Smith

Walden Dissertations and Doctoral Studies

In competitive youth sports organizations, few organizational leaders focus on leadership development to prepare youth for life situations. Sports organizational leaders are concerned about youth leadership development, as development allows youth to build skills necessary to understand their strengths and weaknesses and recognize ways to overcome fears. Grounded in social learning theory, the purpose of this summative program evaluation was to determine the extent to which a competitive youth sports leadership development program aligned with the organization’s primary objective to provide skilled athletic training while providing lessons to prepare youth for adulthood. The participants comprised 40 key stakeholders, including participants …

Analysis Of Driving Forces That Ensures The Sustainability Of Voter Accreditation Technology, Lawrence Oluwagbenga Bayode

Walden Dissertations and Doctoral Studies

Nigeria’s electoral body, the independent national electoral commission (INEC), deployed a novel information technology (IT) based voter accreditation technology in 2015. Benefits realized included transparency and curtailed electoral malpractices. The purpose of this quantitative correlational study was to examine the relationship(s) between some variables categorized into technological, organizational, and economic factors, and Sustainability of voter accreditation technology (SVAT). The theoretical framework for the study was the e-voting system adoption model in combination with constructs from three other theories. A total of 138 IT experts participated and were asked (via SurveyMonkey) of the relationships between the following factors and SVAT: ease …

Knowledge Management, Innovations Systems, And Firm Performance, Henry Dion Young

Walden Dissertations and Doctoral Studies

Small and medium sized-enterprise managers are unable to effectively manage employees’ knowledgeability and innovation systems successfully, which results in negative firm performance. Managers who do not consider employee knowledge management and the benefits related to innovation systems experience financial hardships within the organization. Grounded in the unified model of dynamic organizational knowledge creation theory, the purpose of this quantitative correlational study was to examine the relationship between knowledge management, innovation systems, and firm performance. Data were collected using SurveyMonkey to gather online survey responses from 80 small and medium-sized enterprise managers in California. The results of the standard multiple linear …

Factors That Influence Throughput On Cloud-Hosted Mysql Server, Eric Brown

Walden Dissertations and Doctoral Studies

Many businesses are moving their infrastructure to the cloud and may not fully understand the factors that can increase costs. With so many factors available to improve throughput in a database, it can be difficult for a database administrator to know which factors can provide the best efficiency to maintain lower costs. Grounded in Six Sigma theoretical framework, the purpose of this quantitative, quasi-experimental study was to evaluate the relationship between the time of day, the number of concurrent users, InnoDB buffer pool size, InnoDB Input/Output capacity, and MySQL transaction throughput to a MySQL database running on a cloud, virtual, …

Exploration Of Ehr Implementation Strategies: A Qualitative Study, Scot Eric Loerch

Walden Dissertations and Doctoral Studies

AbstractElectronic health record system implementations have a high failure rate when properly developed strategies are not used. These implementation failures affect healthcare workers and practitioners core roles through a lack of documentation practices, which decreases the quality of the care of the patients. Grounded in the technology acceptance model, the purpose of this qualitative multiple case study was to explore the strategies information technology systems engineers use for the implementation of Health Information Management Systems. The participants were 10 information technology systems engineers from three healthcare organizations in the greater Tennessee area. The data were collected through recorded participant interviews …

A Secure And Strategic Approach To Keep Iot Devices Safe From Malware Attack, Christopher Ray Murray

Walden Dissertations and Doctoral Studies

Through the advances in technology, businesses can now utilize the Internet of Things (IoT) devices to improve workflow and provide better services to customers. However, without a strategy to secure these devices, Information Technology (IT) security professionals are left with vulnerable equipment. Grounded in routine activities theory, the purpose of this qualitative multiple case study was to determine strategies IT security professionals used to protect IoT devices in their environment. The participants were 6 IT professionals from 2 medium to large size healthcare facilities based in the Buffalo, New York, and the Washington D.C. area, who possessed strategies to protect …

The Perceptions And Lived Experiences Of Female Students In A Computer Science Program At A Community College, Terry Voldase

Walden Dissertations and Doctoral Studies

America's higher education institutions have aligned computer science curricula with today's modern technology. Despite these efforts, data have shown that there is slow growth among young women majoring in computer science and even slower growth in this area at community colleges. Higher education institutions have also acknowledged a gap between men and women entering the computer science field and a need to explore options for computer science programs to engage women in the industry. The purpose of this phenomenological study was to gain an understanding of the perceptions and lived experiences of female students enrolled in computer classes at New …

Relationship Between Risk Identification, Risk Response, And Project Success, Marsha Marinich

Walden Dissertations and Doctoral Studies

AbstractProjects are used to implement the organization's strategic goals, but high failure rates reduce projects' effectiveness in successfully achieving goals. High failure rates reduce project managers’ effectiveness of projects in successfully achieving goals. Senior leaders and project managers are unable to deliver successful projects due to unmanaged risks. Grounded in expected utility theory, the purpose of this quantitative correlational study was to examine the relationship between risk identification, risk responses, and project success. A survey was created in SurveyMonkey® and distributed on LinkedIn. Survey responses were analyzed from 71 project managers with at least five years of experience in Washington, …

Opening Books And The National Corpus Of Graduate Research, William A. Ingram, Edward A. Fox, Jian Wu

Computer Science Faculty Publications

Virginia Tech University Libraries, in collaboration with Virginia Tech Department of Computer Science and Old Dominion University Department of Computer Science, request $505,214 in grant funding for a 3-year project, the goal of which is to bring computational access to book-length documents, demonstrating that with Electronic Theses and Dissertations (ETDs). The project is motivated by the following library and community needs. (1) Despite huge volumes of book-length documents in digital libraries, there is a lack of models offering effective and efficient computational access to these long documents. (2) Nationwide open access services for ETDs generally function at the metadata level. …

Entity-Sensitive Attention And Fusion Network For Entity-Level Multimodal Sentiment Classification, Jianfei Yu, Jing Jiang

Research Collection School Of Computing and Information Systems

Entity-level (aka target-dependent) sentiment analysis of social media posts has recently attracted increasing attention, and its goal is to predict the sentiment orientations over individual target entities mentioned in users' posts. Most existing approaches to this task primarily rely on the textual content, but fail to consider the other important data sources (e.g., images, videos, and user profiles), which can potentially enhance these text-based approaches. Motivated by the observation, we study entity-level multimodal sentiment classification in this article, and aim to explore the usefulness of images for entity-level sentiment detection in social media posts. Specifically, we propose an Entity-Sensitive Attention …

Deepmag+ : Sniffing Mobile Apps In Magnetic Field Through Deep Learning, Rui Ning, Cong Wang, Chunsheng Xin, Jiang Li, Hongyi Wu

Electrical & Computer Engineering Faculty Publications

This paper reports a new side-channel attack to smartphones using the unrestricted magnetic sensor data. We demonstrate that attackers can effectively infer the Apps being used on a smartphone with an accuracy of over 80%, through training a deep Convolutional Neural Networks (CNN). Various signal processing strategies have been studied for feature extractions, including a tempogram based scheme. Moreover, by further exploiting the unrestricted motion sensor to cluster magnetometer data, the sniffing accuracy can increase to as high as 98%. To mitigate such attacks, we propose a noise injection scheme that can effectively reduce the App sniffing accuracy to only …

Factors That Influence The Perception Of Higher Education Leaders In The Adoption Process Of Instructional Technology And Distance Education, Diego Tibaquirá

Theses and Dissertations

The problem addressed by this study was that many administrators at institutions of higher learning are faced with the task of finding ways to provide the latest technologies while being extremely constricted by budgets and the rising cost of education. The purpose of this study was to determine the factors that influence the perceptions of higher education leaders in the adoption process of Instructional Technology and Distance Education. This included an examination of the decision-making process and what determined if Instructional Technology and Distance Education were either implemented or upgraded at various higher learning institutions.

The researcher implemented a mixed-methods …

Deep Sequential Real Estate Recommendation Approach For Solving Item Cold Start Problem, Jirut Polohakul

Chulalongkorn University Theses and Dissertations (Chula ETD)

The item cold-start problem occurs when a recommendation system cannot recommend new items owing to record deficiencies and new listing omissions. When searching for real estate, users can register a concurrent interest in recent and prior projects. Thus, an approach to recommend cold-start and warm-start items simultaneously must be determined. Furthermore, unrequired membership and stop-by behavior cause real estate recommendations to have many cold-start and new users. This characteristic encourages the use of a content-based approach and a session-based recommendation system. Herein, we propose a real estate recommendation approach for solving the item cold-start problem with acceptable warm-start item recommendations …

Explainable Stock Price Prediction Using Technical Indicators With Short Thai Textual Information, Kittisak Prachyachuwong

Chulalongkorn University Theses and Dissertations (Chula ETD)

A stock trend prediction has been in the spotlight from the past to the present. Fortunately, there is an enormous amount of information available nowadays. There were prior attempts that have tried to forecast the trend using textual information; however, it can be further improved since they relied on fixed word embedding, and it depends on the sentiment of the whole market. In this paper, we propose a deep learning model to predict the Thailand Futures Exchange (TFEX) with the ability to analyze both numerical and textual information. We have used Thai economic news headlines from various online sources. To …

Learning Personally Identifiable Information Transmission In Android Applications By Using Data From Fast Static Code Analysis, Nattanon Wongwiwatchai

Chulalongkorn University Theses and Dissertations (Chula ETD)

The ease of use of mobile devices has resulted in a significant increase in the everyday use of mobile applications as well as the amount of personal information stored on devices. Users are becoming more aware of applications' access to their personal information, as well as the risk that these applications may unwittingly transmit Personally Identifiable Information (PII) to third-party servers. There is no simple way to determine whether or not an application transmits PII. If this information could be made available to users before installing new applications, they could weigh the pros and cons of having the risk of …

Sop Development For Erp/Software Project Management Of A Consulting Company, Piyanat Viengcome

Chulalongkorn University Theses and Dissertations (Chula ETD)

Presently, ERP/software consulting company has experienced in information gathering process from users in customer company which lead to insufficient to-be process development and vendor selection process. The unexpected results would be extra budget and high manual workload in organization. The possible root cause is uncleared procedure to proceed the project management in ERP/software implementation. The objective of this research is to develop the standard operating procedure for ERP/software project management of a consulting company concentrated in manufacturing industry in Thailand. The methodology starts with studying of competitors' approach from their websites. The ERP expert interview is the next step, 3 …

Med-Asa Smart Task-Volunteer Matching System, Taweesin Wongpinkaew

Chulalongkorn University Theses and Dissertations (Chula ETD)

In the context of healthcare, volunteers play an important role in improving the patient's experience and lowering the operational cost. However, the process which facilitate their management is reported to be problematic. In this thesis, the problems of the current system is explored, and a potential solution of a new IT system is outlined. The system was tested for a duration of 2 month during the COVID-19 outbreak in Thailand. SUS and an in-depth interview was conducted in order to gauge the usability and the effectiveness the system. The time it takes for the volunteers to go through with the …

Aateam: Achieving The Ad Hoc Teamwork By Employing The Attention Mechanism, Shuo Chen, Ewa Andrejczuk, Zhiguang Cao, Jie Zhang

Research Collection School Of Computing and Information Systems

In the ad hoc teamwork setting, a team of agents needs to perform a task without prior coordination. The most advanced approach learns policies based on previous experiences and reuses one of the policies to interact with new teammates. However, the selected policy in many cases is sub-optimal. Switching between policies to adapt to new teammates' behaviour takes time, which threatens the successful performance of a task. In this paper, we propose AATEAM – a method that uses the attention-based neural networks to cope with new teammates' behaviour in real-time. We train one attention network per teammate type. The attention …

Coupled Rain Streak And Background Estimation Via Separable Element-Wise Attention, Yinjie Tan, Qiang Wen, Jing Qin, Jianbo Jiao, Guoqiang Han, Shengfeng He

Research Collection School Of Computing and Information Systems

Single image de-raining is challenging especially in the scenarios with dense rain streaks. Existing methods resolve this problem by predicting the rain streaks of the image, which constrains the network to focus on local rain streaks features. However, dense rain streaks are visually similar to mist or fog (with large intensities), in this case, the training objective should be shifted to image recovery instead of extracting rain streaks. In this paper, we propose a coupled rain streak and background estimation network that explores the intrinsic relations between two tasks. In particular, our network produces task-dependent feature maps, each part of …