Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Employee retention (3)
- Logistic regression analysis (3)
- Forecasting (2)
- ADP (1)
- Accidents (1)
-
- Afghanistan conflict (1)
- Air defenses (1)
- Ambient noise (1)
- Approximate policy iteration (1)
- Computer simulation (1)
- Cost effectiveness (1)
- Design of experiments (1)
- Economic indicators (1)
- Economic warfare (1)
- Entry control point (1)
- Game theory (1)
- Heuristic algorithms (1)
- Inventory control (1)
- Inverse problems (1)
- LSTD (1)
- Least squares temporal differences (1)
- Machine learning (1)
- Macroeconomics (1)
- Manpower planning (1)
- Markov models (1)
- Model validation (1)
- Network intrusion detection systems (1)
- Neural networks (Computer science) (1)
- Queuing theory (1)
- SIMIO (computer software) (1)
Articles 1 - 15 of 15
Full-Text Articles in Engineering
An Examination Of Commercial Motor Vehicle Hours Of Service Safety Regulation, Jason R. Anderson
An Examination Of Commercial Motor Vehicle Hours Of Service Safety Regulation, Jason R. Anderson
Theses and Dissertations
The Federal Motor Carrier Safety Administration (FMSCA) stipulates Hours of Service (HOS) regulations in order to minimize or eliminate fatigued truck driving, a major cause of truck-related accidents. This research examines the efficacy of HOS with three unique research approaches: 1) a typology classification model to indicate differences in HOS regulation from other safety regulations, 2) an exhaustive enumeration method utilizing the theoretical foundation of perishable inventory theory, and 3) a statistical analysis on accidents caused by or involving truck drivers. This research provides insight into similar Air Force Instructions regarding flight-time restrictions for pilots, which attempt to prevent flying …
Using Approximate Dynamic Programming To Solve The Stochastic Demand Military Inventory Routing Problem With Direct Delivery, Ethan L. Salgado
Using Approximate Dynamic Programming To Solve The Stochastic Demand Military Inventory Routing Problem With Direct Delivery, Ethan L. Salgado
Theses and Dissertations
A brigade combat team must resupply forward operating bases (FOBs) within its area of operations from a central location, mainly via ground convoy operations, in a way that closely resembles vendor managed inventory practices. Military logisticians routinely decide when and how much inventory to distribute to each FOB. Technology currently exists that makes utilizing cargo unmanned aerial vehicles (CUAVs) for resupply an attractive alternative due to the dangers of utilizing convoy operations. However, enemy actions, austere conditions, and inclement weather pose a significant risk to a CUAV's ability to safely deliver supplies to a FOB. We develop a Markov decision …
United States Air Force Officer Manpower Planning Problem Via Approximate Dynamic Programming, Amelia E. Bradshaw
United States Air Force Officer Manpower Planning Problem Via Approximate Dynamic Programming, Amelia E. Bradshaw
Theses and Dissertations
The United States Air Force (USAF) is concerned with managing its officer corps to ensure sufficient personnel for mission readiness. Manpower planning for the USAF is a complex process which requires making decisions about accessions. Uncertainty about officer retention complicates such decisions. We formulate a Markov decision process model of the Air Force officer manpower planning problem (AFO-MPP) and utilize a least squares approximate policy iteration algorithm as an approximate dynamic programming (ADP) technique to attain solutions. Computational experiments are conducted on two AFO-MPP instances to compare the performance of the policy determined with the ADP algorithm to a benchmark …
Modeling And Economy’S Dynamics And External Influences Through A System Of Differential Equations, Thomas M. Dickey
Modeling And Economy’S Dynamics And External Influences Through A System Of Differential Equations, Thomas M. Dickey
Theses and Dissertations
This research proposes a methodology to develop models for the greater understanding of the application of the economic instrument of national power through a selection of factors that define the economic condition of a country. The major components of an economy are identified as GDP per capita, a treasury bond yield, and a major stock market index. The components have interconnected dynamics along with external influences from the United Stated Federal Funds Rate and foreign direct investment. These connections are considered through a metamodel in the form of a system of differential equations which is solved as an inverse problem. …
Rate Setting Analysis: A Statistical Approach To Outlier Analysis In The Rate Setting Process Within The United States Transportation Command, Warren B. Mcgriff
Rate Setting Analysis: A Statistical Approach To Outlier Analysis In The Rate Setting Process Within The United States Transportation Command, Warren B. Mcgriff
Theses and Dissertations
The rate setting process implemented by the USTRANSCOM J8 Program Analysis & Financial Management Directorate (USTC J8 or TCJ8) is of importance, as accurate rates yield proper and equitable recoupment of costs from customers and ensure USTC can achieve an accurate Net Operating Result (NOR) in each given year. This research sought to identify areas in which the current rate setting methodology can be improved. We initially examined the use of six months of historical cost data versus a full year of data to set rates, concluding that there is not a statistically significant difference with respect to their relative …
Sortie Generation Simulation Of A Fighter Squadron, Abdurrahman Sevimli
Sortie Generation Simulation Of A Fighter Squadron, Abdurrahman Sevimli
Theses and Dissertations
The Turkish Air Force utilizes several fighter squadrons to enhance its military capabilities. One of the most critical challenges for these squadrons is generating sorties to meet the currency and demand during both peacetime and wartime. This sortie generation process directly affects the success of both training and operations. In this study, this process is assessed using a discrete event simulation. Air Force decision makers require a simulation tool to conduct “what-if” analysis on how potential changes in the environment affect an F-16 fighter squadron’s sortie generation process. Creating a usable simulation provides decision makers with a flexible tool to …
Heterogeneous Air Defense Battery Location: A Game Theoretic Approach, Nicholas T. Boardman
Heterogeneous Air Defense Battery Location: A Game Theoretic Approach, Nicholas T. Boardman
Theses and Dissertations
The Unites States and its allies confront a persistent and evolving threat from missile attacks as nations around the world continue to invest and advance their current capabilities. Within the air defense context of a missile-and-interceptor engagement, a challenge for the defender is that surface to air interceptor missile batteries often must be located to protect high-value targets dispersed over a vast area, subject to an attacker observing the disposition of batteries prior to developing and implementing an attack plan. To model this scenario, we formulate a two-player, three-stage, perfect information, sequential move, zero-sum game that accounts for, respectively, a …
A Response Surface Validation Of A Quantum Key Distribution Model, Jacob M. Ehrlich
A Response Surface Validation Of A Quantum Key Distribution Model, Jacob M. Ehrlich
Theses and Dissertations
The need for secure communication in the presence of an adversary introduced the field of cryptology -- the practice and study of techniques for secure communication. A common method to secure communication is to distribute a secret key among authorized parties so they can encrypt and decrypt messages between each other. By doing so, ideally, any messages intercepted by a third party are meaningless. An innovative technique to distribute a shared key is Quantum Key Distribution (QKD). QKD uses laws of quantum mechanics to generate and distribute such keys. The purpose of this thesis is to validate an existing mathematical …
Analysis Of Military Entry Control Point Queueing, Justin J. Dwyer
Analysis Of Military Entry Control Point Queueing, Justin J. Dwyer
Theses and Dissertations
Military Entry Control Facilities (ECFs) are unique service queues that are constrained by space, receive high peak traffic flow, and have a customer base that must receive service. Due to complexity of the interactions within the system, simulations provide input that would be impractical for quantitative experimentation. Our research examines relationships within the ECF in order to develop insights that could lead to more efficient daily operations. We focus the research on interactions that generate a queue length that would interfere with traffic flow surrounding the base. Examining the interactions between multiple arrival rates and service times as well as …
Contingency Workload Demand Forecast Techniques For Cargo And Flying Hours, Calvin J. Bradshaw Iii
Contingency Workload Demand Forecast Techniques For Cargo And Flying Hours, Calvin J. Bradshaw Iii
Theses and Dissertations
Accurate forecasting of contingency workload demand for USTRANSCOM (USTC) is a herculean effort. Transportation Working Capital Fund (TWCF) managers rely on various subject matters outside and within the combatant command to estimate future workload. Since rates are set annually, when TWCF activities use incorrect or incomplete projections of workload, this leads to erroneous price structures and misaligned customer billing rates. The USTC leadership lacks the ability to accurately forecast workload demand, which is a key driver for service provider rate-setting. As a result, some customers perceive spiked rates and seek service from other competitors, which generates lost revenue, customer dissatisfaction …
An Examination Of Economic Metrics As Indicators Of Air Force Retention, Helen L. Jantscher
An Examination Of Economic Metrics As Indicators Of Air Force Retention, Helen L. Jantscher
Theses and Dissertations
Fluctuations in the economy can cause military recruitment and retention plans to go awry. By focusing on various economic metrics, it is possible to anticipate changes in retention rates for specific Air Force Specialty Codes (AFSCs). To address the challenge of maintaining a robust and mission capable Air Force, a correlation analysis is employed to determine the relationship between certain economic indicators and AFSC retention rates. As one might suspect, retention rates follow the trend of decreasing when the economy is strong. Of interest, we found two AFSCs which go against this trend. Namely, the retention rates for officers in …
The Impact Of Reducing Full Time Support Positions In The U.S. Army National Guard And Reserves, Lucas J. Lease
The Impact Of Reducing Full Time Support Positions In The U.S. Army National Guard And Reserves, Lucas J. Lease
Theses and Dissertations
The United States Army is at a point in its history in which it, along with the other branches of the military, are experiencing cuts, constraints and a tightening of resources. The days of seemingly large budgets, abundant financial resources and high amounts of manpower are becoming a thing of the past. As the government reduces the allocations to the military, it is examining ways to reduce costs and improve its financial prospects. One of the positions examined for reduction or outright elimination is the full time support position in the U.S. Army National Guard (ARNG) and Reserves (USAR). The …
A Model Of Ambient Noise Caused By Wind Flow, Jovan Popovich
A Model Of Ambient Noise Caused By Wind Flow, Jovan Popovich
Theses and Dissertations
The generation of noise caused by wind owing past a human ear is an important yet vastly understudied factor in determining the ambient noise of an environment experienced by a human observer. Sound level measurements were obtained from wind tunnel tests simulating a human experiencing wind ows at various speeds and from various directions. This data set was used in this thesis. This thesis presents a collection of models for predicting wind noise levels across a broad spectrum of frequencies based on wind speed and angle inputs. Graphical approaches are included to characterize the observed data and illustrate the models' …
Methods To Address Extreme Class Imbalance In Machine Learning Based Network Intrusion Detection Systems, Russell W. Walter
Methods To Address Extreme Class Imbalance In Machine Learning Based Network Intrusion Detection Systems, Russell W. Walter
Theses and Dissertations
Despite the considerable academic interest in using machine learning methods to detect cyber attacks and malicious network traffic, there is little evidence that modern organizations employ such systems. Due to the targeted nature of attacks and cybercriminals’ constantly changing behavior, valid observations of attack traffic suitable for training a classifier are extremely rare. Rare positive cases combined with the fact that the overwhelming majority of network traffic is benign create an extreme class imbalance problem. Using publically available datasets, this research examines the class imbalance problem by using small samples of the attack observations to create multiple training sets that …
Application Of Non-Rated Line Officer Attrition Levels And Career Field Stability, Christine L. Zens
Application Of Non-Rated Line Officer Attrition Levels And Career Field Stability, Christine L. Zens
Theses and Dissertations
The Air Force monitors the strength of its active duty officer force and attempts to achieve the difficult challenge of employing a diversity of talent among career specialties and experience levels. This study completes two objectives, predicting future manning levels for 23 career fields, and providing a statistical framework to assess the stability of these fields. The first part of the study applies regression and survival analysis to subpopulations within the active duty Air Force officer corps, and then aggregates them by year to forecast future personnel levels. Four career fields are considered, including Acquisitions (ACQ), Logistics (LOG), Support (SPT), …