Open Access. Powered by Scholars. Published by Universities.®
Operations Research, Systems Engineering and Industrial Engineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Air Force Institute of Technology (605)
- Chulalongkorn University (307)
- Georgia Southern University (212)
- California State University, San Bernardino (182)
- Old Dominion University (168)
-
- University of Arkansas, Fayetteville (98)
- University of Nebraska - Lincoln (50)
- Embry-Riddle Aeronautical University (29)
- California Polytechnic State University, San Luis Obispo (28)
- University of South Florida (26)
- Walden University (26)
- World Maritime University (26)
- Clemson University (24)
- Wayne State University (22)
- University of Louisville (20)
- Southern Methodist University (19)
- University of Kentucky (19)
- University of Central Florida (18)
- Purdue University (14)
- University of Texas at El Paso (13)
- Department of Primary Industries and Regional Development, Western Australia (11)
- Indian Institute of Management Bangalore (10)
- Portland State University (10)
- West Virginia University (9)
- American University in Cairo (8)
- University of Northern Iowa (8)
- Association of Arab Universities (7)
- City University of New York (CUNY) (7)
- Technological University Dublin (7)
- Bucknell University (6)
- Keyword
-
- Simulation (67)
- Optimization (56)
- Operations research (31)
- Technology (30)
- Scheduling (28)
-
- Information (25)
- Machine learning (24)
- Applied sciences (23)
- Linear programming (20)
- Internet (19)
- Decision support systems (17)
- Decision making (15)
- Logistics (15)
- Operations Research (15)
- Discrete-event simulation (14)
- IT (14)
- Systems (14)
- Heuristics (13)
- Integer programming (13)
- Management (13)
- Mathematical optimization (13)
- Monte Carlo method (12)
- Neural networks (Computer science) (12)
- Reinforcement learning (12)
- Computer simulation (11)
- Forecasting (11)
- Neural networks (10)
- Project management (10)
- Reliability (10)
- ToC (10)
- Publication Year
- Publication
-
- Theses and Dissertations (598)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (307)
- Journal of International Technology and Information Management (181)
- Engineering Management & Systems Engineering Theses & Dissertations (100)
- Graduate Theses and Dissertations (63)
-
- 12th IMHRC Proceedings (Gardanne, France – 2012) (41)
- 11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010) (38)
- International Material Handling Research Colloquium (34)
- 14th IMHRC Proceedings (Karlsruhe, Germany – 2016) (33)
- 13th IMHRC Proceedings (Cincinnati, Ohio. USA – 2014) (32)
- Department of Industrial and Management Systems Engineering: Faculty Publications (32)
- 15th IMHRC Proceedings (Savannah, Georgia. USA – 2018) (30)
- Electronic Theses and Dissertations (29)
- Industrial Engineering Undergraduate Honors Theses (26)
- USF Tampa Graduate Theses and Dissertations (25)
- Walden Dissertations and Doctoral Studies (25)
- World Maritime University Dissertations (25)
- Faculty Publications (23)
- Engineering Management & Systems Engineering Faculty Publications (21)
- All Dissertations (18)
- Wayne State University Dissertations (15)
- Master's Theses (14)
- Operations Research and Engineering Management Theses and Dissertations (14)
- Industrial and Manufacturing Engineering (11)
- Open Access Theses & Dissertations (11)
- IIMB Management Review (10)
- VMASC Publications (10)
- Computational Modeling & Simulation Engineering Theses & Dissertations (9)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (9)
- Journal of the Department of Agriculture, Western Australia, Series 4 (9)
- Publication Type
- File Type
Articles 91 - 120 of 2141
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Improving Zero Shot Learning By Linking Multi-Label Cnns With Llms, Michael A. Wegner
Improving Zero Shot Learning By Linking Multi-Label Cnns With Llms, Michael A. Wegner
Theses and Dissertations
Classifying previously unseen objects poses a significant challenge for traditional computer vision algorithms, which rely on extensive labeled training data. Zero-shot reasoning offers a way to overcome this limitation. This research explores a novel method for image recognition using the Animals with Attributes 2 (AWA2) dataset as a proof of concept. A multi-label ResNet50 model predicts core attributes like color, ear shape, or number of limbs. Those attributes then feed into ChatGPT which leverages its extensive knowledge base to classify the animal based on the provided attributes. This novel approach skips the need to train on every possible class. Instead, …
Incorporating Sustainability In Facility Layout Planning Algorithms And Assessing Hybridization Techniques On An Egyptian Case Study, Islam Atia
Theses and Dissertations
Due to the growing consequences faced as a result of global warming and climate change; humanity has come together to take an inclusive stance to combat this serious phenomena and work towards a more sustainable future. Large amounts of carbon dioxide emissions are a major contributor to global warming, and a vast proportion of this emission come from industrial and commercial facilities. Hence, if industrial facilities are built with a larger focus on carbon footprint, it will yield a significant reduction in global emissions throughout the lifetime of the facility and will constitute a huge milestone in the journey to …
Optimized Hiv/Aids Resource Allocation In Ohio: A Linear Programming Approach, Godfred Ahenkroa Kesse
Optimized Hiv/Aids Resource Allocation In Ohio: A Linear Programming Approach, Godfred Ahenkroa Kesse
Data Science and Data Mining
This study employs a linear and integer programming approach to optimize HIV resource allocation in Ohio, aiming to minimize new infections and enhance the impact of limited resources. With the advances in HIV prevention and treatment, Ohio faces challenges in addressing disparities in access to healthcare, particularly among high-risk populations. The proposed model integrates data on infection rates, transmission patterns, demographic factors, and cost-effectiveness to provide a decision-support framework for policymakers. Using epidemiological data and equity constraints, the model prioritizes high-risk regions and populations while ensuring fair resource distribution. Results indicate that increased funding allocations significantly enhance the potential to …
Nonconvex Optimization Methods Under Inexact Information, Dat Ba Tran
Nonconvex Optimization Methods Under Inexact Information, Dat Ba Tran
Wayne State University Dissertations
This thesis focuses on the design and convergence analysis of algorithms for solving nonconvex optimization problems under inexact first-order information. We introduce Inexact Reduced Gradient (IRG) methods for general smooth functions and Inexact Gradient Descent (IGD) methods for $\mathcal{C}^{1,1}_L$ functions with relative and absolute errors. Additionally, we develop Inexact Proximal Point and Inexact Proximal Gradient methods for weakly convex functions. Our methods improve the performance of standard inexact proximal point methods, inexact proximal gradient methods, and inexact augmented Lagrangian methods by approximately 2.5 to 10 times in terms of iteration complexity for image processing tasks. Moreover, we propose new derivative-free …
Crime Theory Informed Agent-Based Modeling For Crime Prediction And Patrolling Route Optimization, Shohreh Moradi
Crime Theory Informed Agent-Based Modeling For Crime Prediction And Patrolling Route Optimization, Shohreh Moradi
Industrial, Manufacturing, and Systems Engineering Dissertations - Archive
Crime reduction remains a global priority, demanding both accurate modeling of criminal dynamics and efficient allocation of scarce policing resources. To address these needs, this study presents a two‐fold framework that (1) simulates street‐level crime patterns using an agent‐based model (ABM) grounded in Routine Activity Theory (RAT), Rational Choice Theory (RCT), and Crime Pattern Theory (CPT), and (2) optimizes patrol routing through a time-dependent, multi‐visit mixed‐integer linear programming (MILP) formulation.
In the first component, we integrate real‐world crime, environmental, and census data to reproduce realistic offender, citizen, and Police behaviors, capturing where and when robbery, burglary, and larceny occur across …
Enhanced Load Detection With Data-Driven Appliance Signatures Using Mixed Integer Linear Programming In Non-Intrusive Load Monitoring, Marina Materikina
Enhanced Load Detection With Data-Driven Appliance Signatures Using Mixed Integer Linear Programming In Non-Intrusive Load Monitoring, Marina Materikina
Industrial, Manufacturing, and Systems Engineering Dissertations - Archive
Despite the numerous research studies and interest in the non-intrusive load monitoring (NILM) area to improve energy efficiency, the problem of accurate and precise disaggregation of electrical devices has not been solved yet. The goal of our research is to build a method with a focus on higher accuracy on complex state-based appliances, which most approaches struggle to detect due to their power signal complexity and low consumption. Our approach is NILM with data-driven signatures (DS), with the ability to potentially predict power usage over time that would work great for suitable applications such as demand response, anomaly detection, and …
Understanding The Determinants Of Blockchain Adoption: An Empirical Study, Amarpreet Kohli, Nihar Kumthekar, Piyush Shah, Rebecca Jauch
Understanding The Determinants Of Blockchain Adoption: An Empirical Study, Amarpreet Kohli, Nihar Kumthekar, Piyush Shah, Rebecca Jauch
Journal of International Technology and Information Management
Blockchain technology (BT) has the potential to enhance security and robustness of transactions through a distributed ledger bookkeeping process. This study employs technology-organization-environment (TOE) framework and threat-rigidity theory (TRT) to examine whether perceived disruption caused by COVID-19 pandemic significantly impacted the adoption of BT, and inclination to adopt BT in the US. The COVID-19 pandemic provided a unique backdrop, as it affected businesses across all industries, sizes, and geographies. Results show a non-significant effect of perceived pandemic disruption on the current stage of BT adoption and intention to adopt BT. However, disruption readiness positively influences the current stage of BT …
Introducing Sustainable Development Goals In College Curricula: A Way Forward, Christy Ashley, Jason D. Oliver, Hillary Leonard
Introducing Sustainable Development Goals In College Curricula: A Way Forward, Christy Ashley, Jason D. Oliver, Hillary Leonard
Markets, Globalization & Development Review
The commentary proposes a blueprint to help guide curriculum innovations, partnerships, and teaching interventions that incorporate the United Nations sustainable development goals (SDGs) into the curriculum. It suggests the utilization of AACSB’s Societal Impact Canvas with Ancona et al.’s (2007) Leadership Capabilities (Sensemaking, Relating, Visioning, Inventing) to provide a blueprint for mission-aligned SDG integration at a local level. It provides an illustrative example from the University of Rhode Island (USA), where the focus is on the Blue Economy. It aims to provide practical guidance for how a college or university can efficiently organize to gain stakeholder input that helps enhance …
การวิเคราะห์ความสามารถในการขับขี่และพฤติกรรมจากความเหนื่อยล้าโดยใช้สัญญาณภาพ, ภาสวิชญ์ บุญนุช
การวิเคราะห์ความสามารถในการขับขี่และพฤติกรรมจากความเหนื่อยล้าโดยใช้สัญญาณภาพ, ภาสวิชญ์ บุญนุช
Chulalongkorn University Theses and Dissertations (Chula ETD)
อาการเหนื่อยล้ายังคงเป็นประเด็นด้านความปลอดภัยที่สำคัญในกลุ่มผู้ขับรถบรรทุก ซึ่งมักจะส่งผลให้ระดับความสามารถในการขับขี่ลดลงและเพิ่มความเสี่ยงต่อการเกิดอุบัติเหตุ การศึกษาในครั้งนี้นำเสนอแนวทางการใช้แบบจำลองการเรียนรู้ของเครื่อง (Machine Learning) โดยมีการรวมข้อมูลเหตุการณ์การเกิดพฤติกรรมของผู้ขับขี่ที่ตรวจจับได้จากระบบ AI Camera และข้อมูลด้านประชากรศาสตร์และลักษณะการทำงาน เพื่อทำนายระดับความสามารถในการขับขี่ที่ลดลงที่มีสาเหตุมาจากอาการเหนื่อยล้า โดยทำการศึกษาจากข้อมูลจำนวน 600 วัน ซึ่งประกอบไปด้วยผู้ขับขี่จำนวน 105 คน โดยแบ่งระดับความสามารถในการขับขี่ออกเป็น 3 ระดับ ได้แก่ ความสามารถปกติ ความสามารถลดลง และความสามารถที่มีความเสี่ยงสูง โดยสังเกตจากพฤติกรรมการตอบสนองขณะขับขี่ การวิเคราะห์จะพิจารณาการรวมข้อมูลด้านประชากรศาสตร์และลักษณะการทำงาน วิธีการพัฒนาเกณฑ์ในการระบุระดับความสามารถในการขับขี่ กรอบเวลาในการสังเกตอาการเหนื่อยล้า และคุณภาพของข้อมูลเชิงพฤติกรรม โดยใช้แบบจำลองการเรียนรู้ของเครื่องภายใต้กรอบเวลาในการสังเกตที่แตกต่างกันก่อนเกิดที่ระดับความสามารถในการขับขี่ลดลง ผลการศึกษาแสดงให้เห็นว่าปัจจัยด้านประชากรศาสตร์และปัจจัยที่แสดงลักษณะการทำงานช่วยเพิ่มความแม่นยำในการทำนาย โดยสำหรับการศึกษานี้ แบบจำลองชนิด LightGBM ให้ผลการทำนายที่ดีที่สุดที่ค่าความแม่นยำ 90% ภายใต้เงื่อนไขเหตุการณ์ที่ผ่านการตรวจสอบและใช้กรอบเวลา 8 นาที ซึ่งสะท้อนให้เห็นถึงประโยชน์ของการใช้กรอบเวลาสั้นในการตรวจจับอาการเหนื่อยล้า การวิเคราะห์ความสำคัญของแต่ละปัจจัย (Feature Importance) พบว่า การหาว การปฏิบัติงานต่อเนื่องเกิน 4 ชม. และการหลับตา เป็นตัวบ่งชี้ทางพฤติกรรมที่สำคัญที่สุดตามลำดับ ในขณะที่อายุ การยกของก่อนขับรถ ช่วงเวลาในการทำงาน ประสบการณ์ในการทำงาน เป็นปัจจัยด้านประชากรศาสตร์และการทำงานที่มีอิทธิพลต่อการลดลงของระดับความสามารถในการขับขี่ ผลการศึกษานี้ชี้ให้เห็นถึงความสำคัญของการรวมข้อมูลเหตุการณ์ที่ผ่านการตรวจสอบเข้ากับลักษณะเฉพาะของผู้ขับขี่ และกรอบเวลาในการสังเกตอาการเหนื่อยล้าที่เหมาะสม เพื่อใช้ในการประเมินระดับความสามารถที่ลดลงที่มีสาเหตุจากอาการเหนื่อยล้าได้อย่างมีประสิทธิภาพในงานขนส่ง
การเปรียบเทียบขนาดของรอยฝ่าเท้าที่ได้จากเครื่องพิมพ์รอยฝ่าเท้า 3 มิติ แบบพกพาและโฟมพิมพ์เท้า, วรัญญา รัตนสุมาวงศ์
การเปรียบเทียบขนาดของรอยฝ่าเท้าที่ได้จากเครื่องพิมพ์รอยฝ่าเท้า 3 มิติ แบบพกพาและโฟมพิมพ์เท้า, วรัญญา รัตนสุมาวงศ์
Chulalongkorn University Theses and Dissertations (Chula ETD)
ความแม่นยำของเครื่องมือใหม่ที่ถูกพัฒนามาใช้ทดแทนเครื่องมือเดิม เป็นปัจจัยสำคัญต่อความน่าเชื่อถือ ได้มีการพัฒนาเครื่องพิมพ์รอยฝ่าเท้า 3 มิติแบบพกพาเพื่อทดแทนการใช้โฟมพิมพ์เท้า และใช้ iPhone 12 mini เป็นอุปกรณ์สแกนรอยฝ่าเท้าเพื่อทดแทนเครื่อง 3D scanner เพื่อประเมินให้เห็นว่าสามารถนำเครื่องพิมพ์รอยฝ่าเท้า 3 มิติแบบพกพาและ iPhone 12 mini มาใช้ทดแทนได้ จึงได้มีการออกแบบการทดลองแบบ Randomized Complete Block Design (RCBD) โดยศึกษาปัจจัยของประเภทเครื่องมือที่ใช้พิมพ์รอยฝ่าเท้า ได้แก่ โฟมพิมพ์เท้า และ เครื่องพิมพ์รอยฝ่าเท้า 3 มิติ แบบพกพา และประเภทเครื่องสแกน 3 มิติ ได้แก่ 3D scanner และ iPhone 12 mini การทดสอบได้เก็บข้อมูลเท้า 18 ข้าง จากผู้เข้าร่วมวิจัย 9 คน โดยพิมพ์ลงบนเครื่องพิมพ์รอยฝ่าเท้า 3 มิติ แบบพกพาและโฟมพิมพ์เท้า และทำซ้ำ 3 ครั้ง รอยฝ่าเท้าที่ได้ถูกสร้างรูปร่างรอยฝ่าเท้าดิจิตอลด้วย iPhone 12 mini และ 3D scanner เพื่อเก็บข้อมูลตัวชี้วัดทั้ง 7 ตัว ได้แก่ ความกว้างรอยฝ่าเท้า ความยาวรอยฝ่าเท้า ความสูงรอยฝ่าเท้าในพื้นที่บริเวณอุ้งเท้า 4 ตำแหน่ง และความสูง Metatarsal head ที่ 3 จากผลการวิเคราะห์ทางสถิติแบบ Randomized Complete Block Design (RCBD) ที่ระดับความเชื่อมั่น 95% พบว่าตัวชี้วัดทั้ง 7 ตัว ของเครื่องพิมพ์รอยฝ่าเท้า 3 มิติ แบบพกพากับโฟมพิมพ์เท้าไม่มีความแตกต่างกันอย่างมีนัยสำคัญ และการใช้ iPhone 12 กับ 3D scanner ไม่มีความแตกต่างกันอย่างมีนัยสำคัญเช่นกัน ผลการวิจัยสรุปได้ว่า …
Optimal Control Of Queueing Systems With Error-Prone Servers, Junqi Hu, Sigrún Andradóttir, Hayriye Ayhan
Optimal Control Of Queueing Systems With Error-Prone Servers, Junqi Hu, Sigrún Andradóttir, Hayriye Ayhan
Information Technology & Decision Sciences Faculty Publications
Consider a Markovian tandem line with finite intermediate buffers and an equal number of stations and servers. Servers are flexible but noncollaborative, so that a job can be processed by at most one server at any time. When a job is being processed, it can be damaged and wasted depending on the proficiency of the server. We identify the dynamic server assignment policy that maximizes the long-run average throughput of the system with two stations and two servers. We find that the optimal policy is either a single or a double threshold policy on the number of jobs in the …
An Operational Field Study: A Comparison Of Piloting Uncrewed Underwater Vehicles And Uncrewed Aircraft Systems, David Thirtyacre, Joseph Cerreta, Pete Miller, Kimberly Luthi, Jolee Thirtyacre
An Operational Field Study: A Comparison Of Piloting Uncrewed Underwater Vehicles And Uncrewed Aircraft Systems, David Thirtyacre, Joseph Cerreta, Pete Miller, Kimberly Luthi, Jolee Thirtyacre
Publications
and operations, the ability to cross-train personnel in both Uncrewed Underwater Vehicles and Small Uncrewed Aircraft System operations has become a focal point for efficiency and workforce optimization. This study presents a comparative analysis of the operational and human factor considerations involved in piloting mini UUV and sUASs, highlighting the key similarities and differences in control methods, environmental influences, navigation, emergency procedures, and situational awareness. A qualitative experimental field study was conducted between July 2024 and October 2024, involving real-world deployments of both systems in maritime and aerial environments. Findings indicated that while UUV and sUAS operators relied on remote …
A Design And Analysis Of Computer Experiments Approach To Water Distribution Network Seismic Rehabilitation Optimization, Uthman Abiola Kareem
A Design And Analysis Of Computer Experiments Approach To Water Distribution Network Seismic Rehabilitation Optimization, Uthman Abiola Kareem
Industrial, Manufacturing, and Systems Engineering Dissertations - Archive
Water is an essential part of human life. However, there are critical infrastructures that enable water availability in communities and homes. One of such is a water distribution network. Water distribution network performance depends on its reliability, which could be threatened by external agents like earthquakes. When earthquakes occur, they cause damages on some pipes within the distribution network and this limits performance of water distribution network. While earthquakes cannot be prevented, effective maintenance intervention may reduce the impact of earthquakes on water distribution networks. In order to develop an effective maintenance plan, researchers approach it in different ways. However, …
Multiphysics Modeling Of Solid Oxide Fuel Cells For Gradient Minimization And Inductive Loop Analysis In Impedance Spectroscopy Using Machine Learning-Based Microstructural Property Estimation, Muhammad Usman Khan
College of Graduate Studies: Theses & Dissertations
Solid oxide fuel cells have significant advantages in renewable energy utilization due to their high efficiency, fuel flexibility, and low emissions. However, despite the numerous efforts of technology, thermal and current density gradients and impedance behavior fluctuations are still causing performance degradation. A combined computational framework that integrates machine learning and three-dimensional Multiphysics modeling is needed to investigate and optimize the performance of solid oxide fuel cells. A machine learning model, trained on synthetic microstructure data by percolation analysis, is used to predict important microstructural parameters like triple phase boundary density and geometric tortuosity. These are then employed in a …
Quantifying The Transfer Effectiveness Of An Artificial Intelligence-Based Simulator Pre-Training Program For Student Pilots, Ryan Guthridge
Quantifying The Transfer Effectiveness Of An Artificial Intelligence-Based Simulator Pre-Training Program For Student Pilots, Ryan Guthridge
Journal of Aviation/Aerospace Education & Research
Since the airline pilot shortage was initially studied in 2016, the pilot hiring model has been significantly impacted, with airlines hiring qualified pilots at unprecedented rates. The COVID-19 pandemic has slowed this hiring rate, however it is expected that airline hiring will soon increase to a rate higher than initially expected (Bureau of Transportation Statistics, 2022). With this dynamic, certified flight instructors are often the most qualified recruits for airlines, due to the number of hours and experience they have gained in the flight training organization. In turn, certified flight instructors are in short supply for flight training organizations worldwide. …
The State Of Uas Operations At Airports, A Perspective From Airport Managers, Damon Lercel, Sarah M. Hubbard
The State Of Uas Operations At Airports, A Perspective From Airport Managers, Damon Lercel, Sarah M. Hubbard
Journal of Aviation/Aerospace Education & Research
As the number of Uncrewed Aircraft Systems (UAS) operating in our National Airspace System (NAS) increases, so do UAS operations near or at an airport. The accelerating technology in Advanced Air Mobility (AAM) and related business opportunities will only further increase UAS operations at airports. This continued growth in new UAS technologies and applications introduces new hazards and risks to the airport environment. This proliferation of UAS highlights the importance of airports developing a robust Safety Management System (SMS) that includes specific UAS risk mitigations. There is currently little empirical data regarding UAS traffic around airports and there is no …
Predicting Crises On The African Frontier Stock Markets With Investor Sentiment Indicators: A Machine Learning Approach, David Korsah, Lord Mensah
Predicting Crises On The African Frontier Stock Markets With Investor Sentiment Indicators: A Machine Learning Approach, David Korsah, Lord Mensah
Journal of International Technology and Information Management
This study examined the predictive ability of machine learning algorithms in identifying crises within African stock markets. The study employed seven distinct machine-learning models, analyzing historical stock prices from eight stock markets, three major sentiment indicators, and the exchange rates of local currencies against the US dollar, with each data spanning from May 1, 2007, to April 1, 2023. Extreme Gradient Boosting (XGBoost) emerged as the most effective algorithm for predicting crises. Historical stock prices and exchange rates were identified as the most critical features for prediction. On the sentiment side, investors’ perceptions of potential volatility on the S&P 500, …
Pedagogy In The Age Of Ai: Exploring Generative Ai For Higher Education, Alison Munsch Phd
Pedagogy In The Age Of Ai: Exploring Generative Ai For Higher Education, Alison Munsch Phd
Journal of International Technology and Information Management
Generative Artificial Intelligence (AI) presents transformative opportunities for higher education, enabling personalized learning, enhanced student engagement, and efficient pedagogical practices. This tutorial-style article guides educators in integrating generative AI into their classrooms through hands-on activities, practical strategies, and reflective exercises. It explores the capabilities of AI tools such as ChatGPT, their applications across disciplines, and the ethical considerations for their use. By cultivating critical thinking and fostering student readiness for AI-driven futures, this article underscores the transformative potential of generative AI in higher education with an emphasis on the academic areas of business analytics, information systems, and computer science.
Surviving And Thriving In The Hybrid Cloud: A Review Of The Current Cloud Computing Landscape, Peter Munsch, Alison Munsch
Surviving And Thriving In The Hybrid Cloud: A Review Of The Current Cloud Computing Landscape, Peter Munsch, Alison Munsch
Journal of International Technology and Information Management
Background and Purpose
Both academic and industry institutions have increasingly migrated essential services to public cloud providers (e.g., Microsoft, AWS, Google) with mixed outcomes. Some industry leaders attempted to fully replace their on-premises data centers with public cloud services, a move not advised without thorough performance and cost analyses (Potel, 2023). Despite some organizations pulling back from the “Cloud First” strategy, the public cloud services market continued to grow, with revenue increasing by approximately 20% year-over-year since 2020 and surpassing half a trillion dollars in 2022 (IDC Worldwide Semiannual Public Cloud Services Tracker, 2H 2022). Cloud technologists suggested that hybrid …
Predicting Global Healthcare Supply Chain Delays: A Machine Learning Approach Leveraging Country-Level Logistics Metrics, Jeevan Sai Gali, Nima Molavi, Sepideh Alavi
Predicting Global Healthcare Supply Chain Delays: A Machine Learning Approach Leveraging Country-Level Logistics Metrics, Jeevan Sai Gali, Nima Molavi, Sepideh Alavi
Journal of International Technology and Information Management
In global healthcare logistics, ensuring the timely delivery of medical commodities is critical, particularly in low- and middle-income countries characterized by infrastructural limitations and operational uncertainties. This research introduces an advanced, data-driven predictive framework designed to forecast delivery delays by synthesizing granular, internal shipment-level data from the USAID Global Health Supply Chain Program (GHSC-PSM) with external country-level logistics capabilities indicators derived from the World Bank’s Logistics Performance Index (LPI). Rather than relying on retrospective trend analyses, this study employs machine learning algorithms such as Random Forest, XGBoost, Support Vector Machines (SVM), and Multi-Layer Perceptron (MLP) to detect …
Data Driven Bridge Deck Deterioration Modeling And Maintenance Intervention Scheduling, Deepak Kumar
Data Driven Bridge Deck Deterioration Modeling And Maintenance Intervention Scheduling, Deepak Kumar
Dissertations and Theses
Majority of over 617,000 bridges across the United States are significantly impacted by environmental factors, aging materials, and heavy traffic loads. According to the 2021 Infrastructure Report, nearly 231,000 bridges require repair or preservation work, with 46,154 (7.5%) being classified as structurally deficient, thereby posing risks for mor than 178 million daily trips across these bridges. Despite recent improvements, 42% of U.S. bridges are at least 50 years old, underscoring an urgent need for increased investment to meet repair demands. The nation’s backlog of bridge repairs is estimated at $125 billion, with a 58% increase in annual spending required to …
Inspection Program Effectiveness Key Performance Indicator For Pressurized Static Equipment Integrity At Offshore Platform, Teuku Ahmad Haekal, Johny Wahyuadi Soedarsono, Badrul Munir, Muhammad Yudi Masduky Sholihin
Inspection Program Effectiveness Key Performance Indicator For Pressurized Static Equipment Integrity At Offshore Platform, Teuku Ahmad Haekal, Johny Wahyuadi Soedarsono, Badrul Munir, Muhammad Yudi Masduky Sholihin
Journal of Materials Exploration and Findings
One of the key challenges in asset integrity management system at offshore platform is the lack of visibility regarding performance issues and program effectiveness. Without proper performance measurement systems, it becomes difficult to address positive or negative trends promptly and for management to stay informed about the status and the impact of the inspection program. Therefore, Key Performance Indicator (KPI) is needed to measure inspection program effectiveness to prevent undesirable equipment failures that could lead to Loss of Primary Containment (LOPC) or Process Safety Event (PSE). The developed KPI is the ratio of the number of non-leak inspection findings with …
Strategic Responses For Unplanned Events, Tidjan Simpson
Strategic Responses For Unplanned Events, Tidjan Simpson
Harrisburg University Dissertations and Theses
The paper addresses the question, “Can dynamic, effective response plans be made for stakeholders of a manufacturing line dealing with unplanned events at a manufacturing line, irrespective of an individual’s unique subject matter expertise? Prior research in manufacturing-related environments has indicated the existence of a high frequency of unplanned events. When not responded to efficiently, they can result in reduced financial efficiency and employee overwhelm. Through collection and analysis of interviews conducted with stakeholders in the manufacturing environment, a possible means of efficiently addressing unplanned events can be found or synthesized to help stakeholders navigate uncertainty in the manufacturing environment …
The Practical Adoption And Application Of Blockchain Technology Within The Beverage Industry, Alexander Adams Jr
The Practical Adoption And Application Of Blockchain Technology Within The Beverage Industry, Alexander Adams Jr
Electronic Theses, Projects, and Dissertations
Abstract
The beverage industry is facing heightened scrutiny as the demand for transparency and accountability reaches new heights. In the age of information technology, companies must prioritize enhanced traceability to ensure product safety, comply with government regulations, maintain customer trust, and protect brand integrity. This thesis explores the potential of blockchain technology as a solution to these challenges, focusing on its ability to decentralize data, improve traceability, and expedite response times during safety recalls. The research provides an overview of the evolution of food safety regulations, beginning with the first establishment by Upland Sinclair, and examines current traceability practices and …
Integrating Risk And Vulnerability: Exploring A Unified Model For Supply Chain Resiliency, William G. Cook
Integrating Risk And Vulnerability: Exploring A Unified Model For Supply Chain Resiliency, William G. Cook
USF Tampa Graduate Theses and Dissertations
The world has entered an era of retreating globalization, mounting geo-political tensions, rising protectionism, and increasing focus on the fragility of complex supply chains. The negative impacts of supply chain disruptions have been increasingly documented since the turn of the century. Given the global scale of recent disruptions, supply chain resiliency has become a national imperative. The Global Financial Crisis, the Covid-19 pandemic, and other major disruptive events demonstrate the active role of government in mitigating damage, the enduring effects of regulation, and the resultant re-evaluation of supply chain strategies by the private and public sectors. In this environment, supply …
Inexact Methods For Large-Scale Stochastic Programming, Niloofar Fadavi
Inexact Methods For Large-Scale Stochastic Programming, Niloofar Fadavi
Operations Research and Engineering Management Theses and Dissertations
This dissertation addresses the development of inexact methods for solving large-scale stochastic programming problems, with a focus on two-stage and multistage settings. Stochastic programming is a robust approach for managing uncertainty in decision-making, with applications across various domains like supply chain management, power systems, and logistics. However, solving large-scale stochastic programming problems, especially those with a nonlinear structure, is computationally challenging due to the high-dimensional nature of uncertainties and the need for efficient optimization techniques.
This work introduces novel inexact proximal bundle algorithms designed to solve two-stage stochastic quadratic programming problems. The proposed methods utilize dual-based and partition-based approaches to …
An Integrated Theoretical Socio-Technical Framework For Implementing Service Robots’ Integration In Healthcare, Sujatha Alla
An Integrated Theoretical Socio-Technical Framework For Implementing Service Robots’ Integration In Healthcare, Sujatha Alla
Engineering Management & Systems Engineering Theses & Dissertations
Healthcare workers, either clinical or non-clinical, are obligated to serve patients. However, lack of a sufficient number of professionals leads to burnout, severe stress, and, consequently, decreased quality of services. In this context, very few countries have been successful in employing service robots to perform dull, dirty, and/or dangerous tasks related to patient wellbeing/healthcare, while most countries are still skeptical about it. As robotics advances, there is an opportunity for healthcare to take advantage of this technology to reduce personnel workload and to reduce the possibility of exposure to contagious pathogens. However, healthcare is a vulnerable environment and requires critical …
Toward Adaptive And Modular Joint Multi-Domain Operational Planning, Kyle S. Wilkinson
Toward Adaptive And Modular Joint Multi-Domain Operational Planning, Kyle S. Wilkinson
Theses and Dissertations
This research develops a multiparametric optimization framework for modeling joint multi-domain operational planning under uncertainty. We address the application of our framework to model the doctrine of adaptive planning. We apply set-based design, which is a program management practice of maintaining maximal design options through time as a response to epistemic uncertainty. We couple this with a multiparametric optimization method yielding both sets of solutions and sensitivity profiles. We use the sensitivity profiles to quantify risk associated with changes during adaptive planning. This research also models features of military operational planning via the mathematics of category theory. We formalize intuitive …
Improving Military Medical Evacuation System Performance Via Stochastic Optimization, Virbon B. Frial
Improving Military Medical Evacuation System Performance Via Stochastic Optimization, Virbon B. Frial
Theses and Dissertations
This research highlights the importance of improving the performance of military medical evacuation systems to reduce the risk of permanent disability or death among service members in deployed environments. We employ a range of stochastic optimization techniques relating to integer programming, Markov decision process, approximate dynamic programming, and machine learning, as appropriate, to gain insights into factors that contribute to improving system performance.
Data Driven Decision Making For Sustainable Planning And Operations Of Large Scale Networks, Bahareh Kargar
Data Driven Decision Making For Sustainable Planning And Operations Of Large Scale Networks, Bahareh Kargar
Dissertations
This dissertation explores data-driven decision-making networks, focusing on sustainable planning and operations for large-scale systems such as healthcare supply chains and power systems. One significant application in healthcare is the optimization of vaccine supply chains. An agent-based simulation-optimization modeling framework is developed to enhance the efficiency and sustainability of vaccine distribution. First, an agent-based epidemiological model of COVID-19 is extended to capture disease transmission dynamics and forecast the number of susceptible individuals and infections. Then, a sustainable vaccine supply chain considering the impacts of greenhouse gases is developed and integrated with the simulation model to minimize total costs and environmental …