Truth through scientific discipline
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Experience - Complex System Modeling and Simulation
40 years experience building and applying phenomenological models and computer simulations using mathematical techniques from irreversible thermodynamics, stochastic differential equations, causal modeling, probability networks and discrete mathematics to design and build models and simulations of a planaria neural system, silicon solar cells under high illumination, torpedo countermeasures, military command decision making, military command and control (C2) systems, information warfare, combat robots, semi-automated forces, human behavior, large scale organizations, information system phenomenology, military operations, distributed simulation interoperability, and the human brain.
Developed objective and repeatable techniques for constructing simulation referents from subject matter expert opinions using survey research techniques, defining simulation fidelity, assessing distributed simulation interoperability, constructing distributed simulation executions, and composing distributed simulations from representational components.
This experience in complex system modeling and simulation can be organized into the following technical areas:
- solar cell charge transport
- torpedo countermeasures
- military command and control
- information warfare
- semi-automated forces
- human behavior
- information system phenomena
- military operations
- distributed information system interoperability
- distributed simulation composition
- simulation science
The following sections provide more detailed information about the experience in these areas along with citations for the technical publications produced.
Solar Cell Charge Transport
- Constructed a model of the behavior of minority charge carriers in semiconductor junctions under high injection levels
- Applied this model to estimate free carrier lifetime from experimental measurements of solar cell capacitance [7, 8]
Torpedo Countermeasures
- Analyzed the available intelligence literature to develop a model that predicts the current threat and future trends in torpedo countermeasures
Military Command & Control
- Developed mathematical models to represent the effectiveness of command, control and communications (C3) systems [10, 13], the behavior of an enterprise C4I system, the behavior of military C2 systems, and the behavior of Navy command forces [61]
- Applied the model of military C2 systems to the design of computer generated forces [61]
Information Warfare
- Formulated a mathematical model of organization vulnerability to information warfare
Semi-Automated Forces
- Designed a military command forces simulation
- Contributed to the implementation and demonstration of intelligent semi-automated forces
- Developed a technique for evaluating the quality of semi-automated forces (SAFOR) representations
- Applied that technique to evaluate the SAFOR for the Simulation Network (SIMNET) [37, 38]
Human Behavior
- Formulated a mathematical model of human behavior based on the thermodynamic constraints on computational processes and neurophysiology
- Applied this model to represent the effects of emotions as well as other behavior moderators upon individual human behavior [84]
- Analyzed six different simulations of military operations to develop a taxonomy of requirements for human behavior representations [95]
Information System Phenomena
- Developed a model of the thermodynamics underlying information system behavior [87-90]
Military Operations
- Designed and contributed to the implementation of an intelligent semi-automated forces simulation
- Designed simulations of military command forces and Navy command forces
- Employed survey research techniques to collect subject matter expert opinions on military operations then constructed statistical models from the collected data to use as quantitative simulation referents
- Applied this approach to construct two validation referents for the Joint Warfare Simulation (JWARS) [92, 94, 100]
- Prepared a recommended practices standard for the U.S. Army that describes the technique for constructing simulation referents from subject matter expert (SME) opinions [102]
Distributed Information System Interoperability
- Contributed concepts for the designs of a run time infrastructure for the US Department of Defense (DoD) High Level Architecture (HLA) and an interoperable distributed maritime simulation structure
- Developed and applied techniques for implementing interoperable distributed simulations of military operations
- Formulated a mathematical description of the interoperability constraints on interacting simulations [63, 65, 67, 73, 85, 91]
- Designed an advanced scalable distributed simulation architecture
- Extended the mathematical description of the interoperability constraints on interacting simulations to interacting information systems [66]
Distributed Simulation Composition
- Developed an analytical technique to guide the implementation of distributed simulation executions using the DoD HLA; applied this process to develop an HLA application decision framework [68, 69, 72]
- Originated and developed a concept for a versatile object-oriented simulation engine
- Designed an advanced scalable distributed simulation architecture; contributed concepts for the designs of a run time infrastructure for the HLA and a distributed maritime simulation structure [62]
Simulation Science
- Organized, moderated and documented the DMSO/Army Workshop on the Scientific Exploration of Simulation Phenomena [93, 97]