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Full-Text Articles in Engineering
Measuring And Compensating For Transport Delay In Real-Time Interactive Driving Simulation, Joseph D. Dumas Ii
Measuring And Compensating For Transport Delay In Real-Time Interactive Driving Simulation, Joseph D. Dumas Ii
Retrospective Theses and Dissertations
Real-time, man-in-the-loop simulators are important tools for operator training as well as human performance research. Simulator implementation using digital computers offers many important advantages but may also cause problems. One of the most significant and troublesome artifacts of digital computer simulation is the presence of transport delays in the operator/vehicle control loop. Transport delays have been shown to destabilize the system, resulting in poorer control of the simulated vehicle. They may also contribute to an increased likelihood of simulator sickness in human operators. Therefore, it is desirable to be able to quantify simulator transport delays and to compensate the system …
Design And Construction Of Maintainable Knowledge Bases Through Effective Use Of Entity-Relationship Modeling Techniques, William Yancey Pike
Design And Construction Of Maintainable Knowledge Bases Through Effective Use Of Entity-Relationship Modeling Techniques, William Yancey Pike
Retrospective Theses and Dissertations
The use of an accepted logical database design tool, Entity-Relationship Diagrams (E-RD), is explored as a method by which conceptual and pseudo-conceptual knowledge bases may be designed. Extensions to Peter Chen's classic E-RD method which can model knowledge structure used by knowledge-based applications are explored. The use of E-RDs to design knowledge bases is proposed as a two-stage process. In the first stage, and E-RD, termed the Essential E-RD, is developed of the realm of the problem or enterprise being modeled. The Essential E-RD is completely independent of any knowledge representation model (KRM) and is intended for the understanding of …