WorldCat Identities

Gaver, Donald P.

Overview
Works: 114 works in 181 publications in 1 language and 272 library holdings
Roles: Author
Publication Timeline
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Most widely held works about Donald P Gaver
 
Most widely held works by Donald P Gaver
Estimating aircraft recoverable spares requirements with cannibalization of designated items by Donald P Gaver( Book )

4 editions published in 1993 in English and held by 94 WorldCat member libraries worldwide

To estimate requirements for primary operating stocks (POS) of aircraft recoverable spare parts, the Air Force has not, as a matter of policy, assumed that parts shortages can be consolidated among aircraft (cannibalized). It has, however, assumed perfect consolidation of shortages in its computation of war readiness spares requirements, designating which parts are relatively easy to cannibalize and which are not. The research described in this report shows that a policy of designated cannibalization in estimating POS requirements is cost-effective. The authors present a computational model that incorporates designated cannibalization, determining the probability of meeting a specified aircraft availability goal with a specified confidence. They conclude that a designated cannibalization policy for POS can reduce safety stock requirements while maintaining traditional levels of system performance
Accommodation of second-class traffic by Donald P Gaver( Book )

1 edition published in 1962 in English and held by 3 WorldCat member libraries worldwide

Statistical Approaches to Managing Manpower Data Bases by Donald P Gaver( Book )

2 editions published in 1974 in English and held by 3 WorldCat member libraries worldwide

The report discusses various data bases types, with particular emphasis on controlling and understanding the error content by statistical means. A model is also made to describe a data base as an inventory; costs of modifying and maintaining the base are included. (Author)
Statistical methods of probable use for understanding remote sensing data by Donald P Gaver( Book )

2 editions published in 1979 in English and held by 3 WorldCat member libraries worldwide

This report outlines several new statistical approaches to data problems likely to be encountered when remote sensing methods are used. The methods described are robust regression analysis, smoothing, and modeling and estimation of ice pressure ridge characteristics
Analytical models for battlespace information operations (Bat-IO) by Donald P Gaver( Book )

3 editions published in 1999 in English and held by 2 WorldCat member libraries worldwide

Modern warfare uses information gathering resources ("sensors") and C4ISR capabilities to detect, acquire, and identify targets for attack ("shooters"). This report provides analytical state-space models that include the capabilities of the above functional elements in order to guide their appropriate balance; this includes attention to the effect of realistic errors, e.g., of target classification and battle damage assessment (BDA). Also, an analytic stochastic model that illustrates multiple attractor/steady states is presented
Assessing and Controlling the Availability of Failure-Degraded Service Agents by Donald P Gaver( Book )

3 editions published in 1998 in English and held by 2 WorldCat member libraries worldwide

Military items such as airborne surveillance systems (UAVs, JSTARs, helicopters, etc.) or combat vehicles (tanks, APCs, ships) may have high effectiveness when available on station, but require occasional restoration (refueling, re-arming, scheduled maintenance) and repair after unscheduled failures of certain subsystems. This requirement takes them off station, where delays occur that are affected by the numbers and types of support resources and the philosophy of scheduling those resources. This paper considers the effect of decision choices on long-run item availability on station when items can be in several levels of capability/effectiveness when on station. The model is used to show that a simple binary decision rule (that depends on ratios of endurance, failure, and restoration and repair rates) guides the decision as to whether a failed item should be completely repaired to its highest level, or returned to duty at an incompletely-capable state. View this as an indicator of the types of rules anticipated to apply in realistic generality. These will be the subject of additional research
Approximate Models for Central Server Systems with Two Job Types by John P Lehoczky( Book )

2 editions published in 1977 in English and held by 2 WorldCat member libraries worldwide

Two new approximation techniques for describing the performance of a closed queueing network when two or more job types are present are introduced and analyzed. The approximations apply in cases where a product form steady state solution can not be obtained, for example in the first-come-first served single server queue case. This approximation provides a method of reducing the state space to a small fraction of that needed for an implementation of the Gaver-Humfeld method. Numerical results illustrate the excellent accuracy of these techniques. (Author)
A Diffusion Approximation Model for a Communication System Allowing Message Interference by Donald P Gaver( Book )

2 editions published in 1977 in English and held by 2 WorldCat member libraries worldwide

Mathematical probability models are presented to describe the service furnished to messages approaching c communications channels, on which messages in progress may be 'destroyed' by an attempted access by a new message. Re-tries by destroyed messages are modeled. Numerical results, using the models, are compared to simulations, validating model usefulness. (Author)
Models that Reflect the Value of Information in a Command and Control Context by Donald P Gaver( Book )

2 editions published in 1980 in English and held by 2 WorldCat member libraries worldwide

The influence of information upon combat models is given an initial investigation. Coordination of unit fire is evaluated on a static, and then dynamic (Lanchesterian) basis. A model is made for a discriminating missile directed at valuable targets surrounded by false (low value) targets. (Author)
Models for transmission and control of bioterroristic epidemics( Book )

2 editions published in 2004 in English and held by 2 WorldCat member libraries worldwide

A deterministic model for control of a bioterrorist epidemic in a large nonhomogeneous population is presented. Primary considerations in model development are the representation of a large nonhomogeneous population of individuals and the implementation of the model for quick numerical execution. The model represents the effect of mass pre-vaccination and mass vaccination during the epidemic. It is recognized that the vaccination can result in life threatening complications. The model also represents the effect of tracing and quarantining as control options. The model has been implemented in Java for a Web-based educational tool. Numerical examples (p. 12-15) illustrate possible behavior of populations exposed to such a disease as smallpox. Various disease controls such as vaccination and case tracing are studied
Modeling the operation of a platoon of amphibious vehicles for support of operational test and evalution (OT & E) by Donald P Gaver( Book )

3 editions published in 2001 in English and held by 2 WorldCat member libraries worldwide

This report documents an analytical model to assist in the planning of the Operational Test and Evaluation (OT & E) of the Marine Corps' prospective Advanced Amphibious Assault Vehicle (AAAV). The model's emphasis is on suitability issues such as Operational Availability in an on-land (after ocean transit) mission region. The model predicts strong sensitivity to the form of an assumed distribution of times to vehicle breakdown, and hence recommends that appropriate test data be obtained to reveal that form (the mean alone is inadequate). Removal of design faults likely to cause early failures is encouraged. The AAAV design is for a relatively lightweight but technologically advanced (mobile and lethal) amphibious vehicle that operates in platoons. If individual vehicles break down they must often be transported for repair, for example, to their point of origin, a ship. One option is to allow another platoon member to tow; another is to assign an auxiliary vehicle to transport. Such duties may seriously diminish the platoon productive mission availability (the towing/transport agents may themselves fail). OT & E should be designed to fully test for the system-wide effect of force (platoon, and beyond) sustainability requirements
Jackknifing the Kaplan-Meier Survival Estimator for Censored Data: Simulation Results and Asymptotic Analysis by Donald P Gaver( Book )

2 editions published in 1982 in English and held by 2 WorldCat member libraries worldwide

The Kaplan-Meier estimate is a non-parametric maximum likelihood estimate for the probability of equipment of human survival. This report describes a jackknife confidence limit procedure for probability of survival, based on K.-M., and describes confidence limit properties by simulation and by asymptotic analysis. (Author)
Programming and probability models in operations research [by] Donald P. Gaver [and] Gerald L. Thompson by Donald P Gaver( Book )

1 edition published in 1973 in English and held by 2 WorldCat member libraries worldwide

Battlespace/Information War (BAT/IW): A System-of-Systems Model of a Strike Operation by Donald P Gaver( Book )

3 editions published in 2002 in English and held by 1 WorldCat member library worldwide

This paper presents a low-resolution, high-level modeling methodology for the analysis of the effectiveness of a Blue system of systems operating in a battlespace. The methodology enables quick turn around and efficient exploration of sensitivities of measures of Blue combat success to realistically imperfect Blue intelligence, surveillance and reconnaissance capabilities: limited and imperfect sensor surveillance and reconnaissance, particularly battle damage assessment (BDA), and finite, hence saturable, communications and weapons delivery capability. The model explicitly represents aircraft sorties, fires, sensor/shooter latencies, target losses, imperfect target type classification, imperfect weapon assignment, and BDA; various levels of the above imperfections can be applied, facilitating tradeoff studies, The model is deterministic/expected value in nature, although it analytically represents time-dependent stochastic features such as system saturability. Model experimentation suggests the following results. Decreasing shooter latency can result in greater attrition than correspondingly increasing the probabilities of correct BDA or weapon assignment, although at the expense of a greater number of weapons fired per target killed. Erroneous BDA returns dead targets to the shooter targeting list. These dead targets not only result in wasted weapon expenditure but also take sensor/shooter resources away from legitimate live targets. Increasing the probability of correct BDA can result in a greater number of targets killed during a time period than increasing the probability of correct weapon assignment
Testing or fault-finding for reliability growth : a missile destructive-test example by Donald P Gaver( Book )

2 editions published in 1997 in English and held by 1 WorldCat member library worldwide

A new piece of equipment has been purchased in a lot of size m. Some of the items can be used in destructive testing before the item is put into use. Testing uncovers faults which can be removed from the remaining pieces of equipment in the lot. If t <m pieces of equipment are tested, then those that remain, mt = m - t, have reduced fault incidence and are more reliable than initially, but mt may be too small to be useful, or than is desirable. In this paper models are studied to address this question: given the lot size m, how to optimize by choice of t the effectiveness of the pieces of equipment remaining after the test The models used are simplistic and illustrative; they can be straightforwardly improved
Prediction of changeover performance : operational test (OT) parameters from developmental test (DT) parameters via meta-analysis by Donald P Gaver( Book )

2 editions published in 1997 in English and held by 1 WorldCat member library worldwide

This paper sketches and examines some analytical statistical concepts and methodologies that should usefully inform and sharpen the process of military test and evaluation decision making. The concepts fall into the broad category of combining information. Developmental testing (DT) refers to the testing of a new or upgraded system in the course of its technical engineering development. Operational testing (OT) is conducted later by operational military personnel in the field. Because of the rigors of field operation there is the expectation that OT failure rates are related to, but likely to be higher, than DT failure rates. The relationship between DT and OT failure rates is modeled and estimation of model parameters examined. A likelihood-based pooling of observations from sensors with a range-dependent precision is studied. Alternatives to the circular normal dispersion model are examined and estimation of the model parameters sketched; experience shows that in projectile testing it is often the case that some individual shots deviate from aimpoint more wildly than described by the customary circular normal model
DISC-O-TIC: A Discrete-Time Analysis Meta-Model for Use in Combat Systems Studies that Utilize High-Resolution Simulation Models by Donald P Gaver( Book )

3 editions published in 2000 in English and held by 1 WorldCat member library worldwide

This paper provides various meta-models for extending or extrapolating in time, and varying and enhancing in coverage capability, the 2-day output of a high-resolution simulation model, here specifically but not exclusively, the Army's COSAGE. The models we propose, generically called DISC-0-TIC, (Discrete-Time Analytical Meta Model) are tailored to employ the discrete-time output of COSAGE and, potentially, many other such models. The model parameters are estimated from data available from a high-resolution simulation model; in the case of COSAGE the killer/victim scoreboards are used. The models are used to compute/estimate, in spread-sheet format, future force sizes and compositions that result from mutual attrition, as well as ammunition expenditures. Meta-model examination can and is shown to reveal apparent anomalies in data. Meta-models that reflect environmental variations and adaptable firing (ATCAL-like) firing rates illustrate those effects for long (8-day) battles
Methodology for an Operationally-Based Test Length Decision by Donald P Gaver( Book )

3 editions published in 1997 in English and held by 1 WorldCat member library worldwide

Weapon systems that function destructively (e.g. missile or torpedo) are to be acquired in a lot of size m. Acceptance of the lot is based on the result of an operational test, administered to part of the lot if the test results indicate positive operational value the lot is accepted and the remaining part of the lot if fielded; otherwise the lot is 'rejected'. A test plan is designed that establishes an optimal number of weapon copies to test, given (models of) the operational gain of the fielded weapon under two tactical options, and the uncertainty in the weapon's predicted probability of success after the test is complete. The major test objective is to realize possible operational utility from the lot of items, and secondarily to demonstrate arbitrary levels of certainty
The analysis of shooting problems via generalised bandits( Book )

2 editions published in 2004 in English and held by 1 WorldCat member library worldwide

A single Red wishes to shoot at a collection of Blue targets in order to maximize some measure of return obtained from Blues killed before Red's own demise. While the class of decision processes called multi-armed bandits has been previously deployed to develop optimal policies for Red, we argue the importance of a little known, but more general class of bandit processes introduced by Nash (1980). In particular, the deployment of this class of processes will enable Red to take account in a natural way of the relative threats posed to his own survival in taking targeting actions. We develop optimal shooting policies for Red in the context of a range of models, which are of independent interest. The paper concludes with a numerical study
Proposal for Research in Quantitative Bioassay Methodology and Risk Analysis and Characterization( )

3 editions published between 1994 and 1995 in English and held by 0 WorldCat member libraries worldwide

The use of canonical correlation to combine information from biological testing systems is discussed. A graphical procedure to combine results from biological test systems is proposed. Results are presented of analyses of data from health screens to monitor the health status of medaka used in toxicological studies. A statistical model that incorporates a non-ignorable missing data mechanism is proposed to study the effect of leukocrit values which are not measurable. Results are presented of analyses of pathology data from the six month interim sacrifice of the West Branch Canal Creek Carcinogenicity Study with Medaka, Test 4O1-OO2R
 
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English (48)