Search Results - "Hill, Raymond R"

Forecasting country conflict using statistical learning methods by Neumann, Sarah, Ahner, Darryl, Hill, Raymond R

“…Purpose>This paper aims to examine whether changing the clustering of countries within a United States Combatant Command (COCOM) area of responsibility…”
Get full text

Lightning forecast from chaotic and incomplete time series using wavelet de-noising and spatiotemporal kriging by Nystrom, Jared, Hill, Raymond R, Geyer, Andrew, Pignatiello, Joseph J, Chicken, Eric

“…PurposePresent a method to impute missing data from a chaotic time series, in this case lightning prediction data, and then use that completed dataset to…”
Get full text

Analysis of the effects of spatiotemporal demand data aggregation methods on distance and volume errors by Hornberger, Zachary, Cox, Bruce, Hill, Raymond R

“…PurposeLarge/stochastic spatiotemporal demand data sets can prove intractable for location optimization problems, motivating the need for aggregation. However,…”
Get full text

Comparing greedy constructive heuristic subtour elimination methods for the traveling salesman problem by Jackovich, Petar, Cox, Bruce, Hill, Raymond R

“…PurposeThis paper aims to define the class of fragment constructive heuristics used to compute feasible solutions for the traveling salesman problem (TSP) into…”
Get full text

Editorial: Welcome to the Journal of Defense Analytics and Logistics by Hazen, Ben, Hill, Raymond R

Get full text

Back in business: operations research in support of big data analytics for operations and supply chain management by Hazen, Benjamin T., Skipper, Joseph B., Boone, Christopher A., Hill, Raymond R.

“…Few topics have generated more discourse in recent years than big data analytics. Given their knowledge of analytical and mathematical methods, operations…”
Get full text

Wavelet analysis of variance box plot by Williams, Jeffrey, Hill, Raymond R., Pignatiello Jr, Joseph J., Chicken, Eric

“…Functional box plots satisfy two needs; visualization of functional data, and the calculation of important box plot statistics. Data visualization illuminates…”
Get full text

Forecasting US Army enlistment contract production in complex geographical marketing areas by McDonald, Joshua L, White, Edward D, Hill, Raymond R, Pardo, Christian

“…PurposeThe purpose of this paper is to demonstrate an improved method for forecasting the US Army recruiting.Design/methodology/approachTime series methods,…”
Get full text

Predicting success in United States Air Force pilot training using machine learning techniques by Jenkins, Phillip R., Caballero, William N., Hill, Raymond R.

“…The chronic pilot shortage that has plagued the United States Air Force over the past three years poses a national-level problem that senior military members…”
Get full text

A bilevel exposure-oriented sensor location problem for border security by Lessin, Aaron M., Lunday, Brian J., Hill, Raymond R.

“…•We present an application of Wireless Sensor Networks for border security.•We develop a bilevel optimization model and solve its single-level…”
Get full text

A multi-objective, bilevel sensor relocation problem for border security by Lessin, Aaron M, Lunday, Brian J, Hill, Raymond R

“…Consider a set of sensors having varying capabilities and respectively located to maximize an intruder’s minimal expected exposure to traverse a defended…”
Get full text

Testing local search move operators on the vehicle routing problem with split deliveries and time windows by McNabb, Marcus E., Weir, Jeffery D., Hill, Raymond R., Hall, Shane N.

“…The vehicle routing problem (VRP) is an important transportation problem. The literature addresses several extensions of this problem, including variants…”
Get full text

Utilizing reliability modeling to analyze United States Air Force officer retention by Schofield, Jill A., Zens, Christine L., Hill, Raymond R., Robbins, Matthew J.

“…•Considered thousands of officer personnel records form the United States Air Force.•Models for retention over several dozen career fields.•Retention models…”
Get full text

Problem reduction heuristic for the 0–1 multidimensional knapsack problem by Hill, Raymond R., Kun Cho, Yong, Moore, James T.

“…This paper introduces new problem-size reduction heuristics for the multidimensional knapsack problem. These heuristics are based on solving a relaxed version…”
Get full text

A case study in engineering model validation using new wavelet‐based methods by Hill, Raymond R., Rupp, Cara C., Jones, Kaitlyn M., Atkinson, Andrew D.

“…Simulation model validation is an important part of simulation development and use. An emerging challenge is the examination of functional data systems and the…”
Get full text

Examining potential reductions in wind tunnel testing requirements by Hill, Raymond R., Ahner, Darryl K., Dillard, Douglas A., Montgomery, Douglas C.

“…Wind tunnel test campaigns involve a large number of experimental data points, can take a long time to accomplish, and can consume tremendous resources. Design…”
Get full text

Maximum likelihood estimation for the poly-Weibull distribution by Freels, Jason K., Timme, Daniel A., Pignatiello, Joseph J., Warr, Richard L., Hill, Raymond R.

“…The Weibull distribution has long been a popular choice for modeling lifetime data of various mechanical and biological phenomena when the associated hazard…”
Get full text

Point-wise model validation over experimental regions using regression confidence and tolerance intervals with Bayesian relaxations by Storm, Scott M, Hill, Raymond R, Pignatiello, Joseph J, White, Edward D, Vining, G Geoffrey

“…As systems grow more complex, so does our propensity to use computers to emulate complex real-world systems. Often these real-world systems possess dynamic…”
Get full text

An agent-based modeling approach to analyze the impact of warehouse congestion on cost and performance by Heath, Brian L., Ciarallo, Frank W., Hill, Raymond R.

“…This article discusses a novel agent-based modeling (ABM) approach to analyze the impact of warehouse congestion and presents results indicating the…”
Get full text

OPEN CHALLENGES IN BUILDING COMBAT SIMULATION SYSTEMS TO SUPPORT TEST, ANALYSIS AND TRAINING by Hill, Raymond R., Tolk, Andreas, Hodson, Douglas D., Millar, Jeremy R.

“…High expectations to leverage Modeling and Simulation (M&S) capabilities to support operational testing, systems analysis and user/operator training is…”
Get full text