By Topic

1993 4th Annual Conference on AI, Simulation and Planning in High Autonomy Systems

20-22 Sept. 1993

Filter Results

Displaying Results 1 - 25 of 45
  • 1993 4th Annual Conference on AI, Simulation and Planning in High Autonomy Systems

    Publication Year: 1993
    Request permission for commercial reuse | PDF file iconPDF (138 KB)
    Freely Available from IEEE
  • A fuzzy logic assistant for virtual environment operators immersed in a battlespace

    Publication Year: 1993, Page(s):40 - 46
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB)

    The motivation for and preliminary design of a decision aid that assists the operator of a synthetic environment that emulates a large, complex battlespace are presented. The purpose of the decision aid is to increase the situational awareness of the operator concerning the activity within the battlespace. The decision aid, called the fuzzy logic assistant, uses the fuzzy logic control paradigm wi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • NPSNET: JANUS-3D providing three-dimensional displays for a two-dimensional combat model

    Publication Year: 1993, Page(s):31 - 37
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    The integration of the US Army's existing combat modeling tool, JANUS(A), with the real-time three-dimensional graphics display offered by NPSNET is discussed. A scripting tool capable of rendering JANUS(A) scenarios previously executed in the traditional two-dimensional model is discussed. This replay capability allows the gamer/analyst the ability to watch the three-dimensional battle unfold fro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Virtual prototyping, object-oriented modeling and intelligent knowledge capture for system design

    Publication Year: 1993, Page(s):23 - 30
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Knowledge-based modeling and simulation bridges the gap between conventional artificial intelligence implementations (such as expert systems) and more traditional computer-aided design and modeling techniques. The authors are currently developing object-oriented software whose primary function is to capture a user-input design specification and produce a rapid prototype in the form of executable r... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An intelligent GIS for rangeland impact assessment

    Publication Year: 1993, Page(s):109 - 115
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    A monitoring and forecasting system is needed for bioregional planning, natural resource policy analysis and management strategy testing in California. The advantages of qualitative, rule-based models, and a state-transition paradigm to build ecosystem models are discussed. An intelligent geographic information system to model the effects of fire, grazing, thinning and protection on species compos... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Distributed simulation algorithm for sparse output DEVS

    Publication Year: 1993, Page(s):171 - 177
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    A distributed simulation algorithm for managing a set of processors executing a single-level network of sparse output discrete event system specification (DEVS) models is introduced. A sparse output DEVS is a DEVS in which the number of states that generate non-null outputs is much less than the total number of states. The new algorithm can be characterized by the following: it extends the basic a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Virtual knowledge architecture for intelligent robot planning

    Publication Year: 1993, Page(s):16 - 22
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    The authors present an architecture for a system which will learn to anticipate and avoid problems, including both problems in accomplishing the overall goal of the system as well as problems normally associated with cooperation. The authors envision a future of autonomous robots which will be asked to accomplish a common goal as a team. The coach agent is a case based planner whose purpose is to ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An object oriented methodology integrating design, analysis, modelling, and simulation of systems of systems

    Publication Year: 1993, Page(s):238 - 244
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    Development of systems of systems outstrips the current software systems development strategy. A development strategy which integrates design, analysis, modeling and simulation using a methodology which integrates aspects of modular decomposition, object-oriented design, and distributed system design is reported. The methodology is illustrated in the design of a high bandwidth communications infra... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automated generation of fault tree using the symbolic DEVS simulation

    Publication Year: 1993, Page(s):148 - 154
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    An automated fault tree generation method using the symbolic DEVS (discrete event system specification) simulation is presented. Problems in existing fault tree generation methods are briefly discussed. The approach presented exceeds others in that it is based on the discrete event formalism, providing convenient ways to construct discrete event component models, and it intrinsically represents ti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Object-oriented simulation model of rangeland grasshopper population dynamics

    Publication Year: 1993, Page(s):102 - 108
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    An object-oriented simulation model of range land grasshopper population dynamics is under development. Individual objects in the model are aggregated to the landscape level. The model can simulate a community of any number of grasshopper species acting autonomously. In addition, spatial and temporal dynamics are easily included using object-oriented programming techniques View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Aiding teachers in constructing virtual-reality tutors

    Publication Year: 1993, Page(s):317 - 323
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Teachers need different tools for constructing virtual realities than do professional programmers. Teachers building tutoring environments need only and should only provide declarative and nonquantitative specification of the application, as such information is sufficient to build powerful prototypes or even products when exploited properly. The METUTOR tutor-generation system for sequential-actio... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • XOBS: A formalism for representing the behavior of virtual objects

    Publication Year: 1993, Page(s):260 - 266
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    Any successful technology for the construction of complex virtual worlds must be based on an expandable repository of components and a robust technology for assembling these components into progressively more complex objects and subworlds. There are two aspects to virtual world assembly: construction of physical shape and appearance, and construction of behavior. A representation for behavior that... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The design and implementation of a distributed object-oriented knowledge-based system for hierarchical simulation modeling

    Publication Year: 1993, Page(s):164 - 170
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    A distributed knowledge-based system (DKBS) that supports the construction of simulation models is described. DKBS is designed based on the object-oriented paradigm and implemented in C++ language on the Sun network. The system is capable of constructing a distributed simulation model represented by the System Entity Structure (SES). There are two kinds of objects in the system, the real knowledge... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development environments: A multilevel enactment scenario

    Publication Year: 1993, Page(s):2 - 13
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    The steps necessary to obtaining a development environment are detailed. The most important step in obtaining a development environment is deriving a process abstraction, that is, separating a product from the process used to create it. This separation is a major achievement of abstraction and, due to the need to decide which features of a process are specific to a specific product and which featu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Using simulation in process engineering

    Publication Year: 1993, Page(s):232 - 237
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The flexible and economic production of goods requires a new level of automation. Workcells integrating manufacturing stations and robots, form the basis of a flexible manufacturing process. The manufacturing process to be performed in such a cell also needs definition. A prerequisite is an adequate process definition environment which uses computer support to define the manufacturing process. The... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis on steady state behavior of DEVS models

    Publication Year: 1993, Page(s):142 - 147
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    B. P. Zeigler's (1984) DEVS formalism supports a unified modeling and simulation framework for discrete event systems, but it lacks an analytic means for reasoning about system behavior. To provide both analytic and simulation means for the formalism, an approach to analyzing the steady state behavior of DEVS models without simulation experiments is proposed. By establishing correspondence between... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • In silico prototyping of wetlab experiments

    Publication Year: 1993, Page(s):220 - 225
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The background, implementation, and graphical interface of the Cybermouse simulation-dynamic information system are outlined. It is believed that simulation-dynamic information systems are the next steps in managing complex information through semi-autonomous software. In particular, by making available simulation methods based on nonlinear, event-driven dynamics, such systems show emergent behavi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Behavioral characterization of discrete event systems

    Publication Year: 1993, Page(s):127 - 132
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Discrete event systems (DEVSs) are characterized in an axiomatic way, showing a construction of a DEVS from a discrete event input-output function observation that satisfies causality and stationarity properties. Each system is formalized as a structure. The relationship between their properties is investigated from the view of mathematical general systems theory. The result is a step toward an ab... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On applying machine learning to develop air combat simulation agents

    Publication Year: 1993, Page(s):67 - 73
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Several approaches for utilizing machine learning technologies towards improving the capabilities of autonomous, simulation-based agents are described. For an autonomous agent to be robust, it must be able to plan its activities, react quickly to unforseen events, and execute planned or modified behaviors to achieve goals. Autonomous agents that exhibit appropriate behavior for simulated air comba... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A computer-based language learning tool for the handicapped

    Publication Year: 1993, Page(s):226 - 230
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The needs of the vocally handicapped and the shortcomings of existing speech aids are identified in the context of how better speech aids may be obtained. The requirements for quadriplegics are discussed together with the alternatives to speech-aid keyboards. The problems and limitations of standard speech aid keyboards act as an introduction to the theme of software-generated-keys (softkeys). Sof... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An event-driven causal simulation applied to geoforecasting analysis

    Publication Year: 1993, Page(s):95 - 101
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    A qualitative-quantitative formalism centered around the process paradigm is presented. To model the causal interactions among the parameters of a system, an influence graph is used. The exploitation of the formalism consists of a causal simulation driven by dynamic occurrence of interesting events. The results of the simulation consists of the approximate evolution over time of the parameters. Be... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Understanding natural language for virtual reality: An information theoretic approach

    Publication Year: 1993, Page(s):310 - 316
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The approach to the solution of the natural language parsing (NLP) problem has traditionally taken a linguistic route. A more basic approach using the theory of information is exploited here. Parsing is accomplished based on the information content of the sentence. This reduces processing time, allows for the handling of ungrammatical sentences, and produces a structure that allows the computer to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Deriving ambiguous spatial relations

    Publication Year: 1993, Page(s):47 - 53
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    Qualitative and relational representations of space offer a new and powerful approach to reasoning. This type of approach introduces ambiguity where there would be none in quantitative methodologies. Mechanisms for coping with ambiguity and examples of using these mechanisms for reasoning about space are given here View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Aggregation, disaggregation, and the challenge of crossing levels of resolution when designing and connecting models

    Publication Year: 1993, Page(s):180 - 188
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    Virtual reality will sometimes require consistent simulated information at different levels of resolution. It will also require connecting models coherently that were designed independently. Basic concepts of variable-resolution modeling (VRM) are introduced, and a design approach involving hierarchical model processes and objects is described. Even in attempting to connect existing models, this a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Virtual process design techniques for intelligent manufacturing

    Publication Year: 1993, Page(s):192 - 198
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The design techniques discussed here are concerned with computer integrated, cellular manufacturing systems. Such systems consist of automated robotic cells. Planning and control within a cell is carried out in off- and on-line modes by a hierarchical controller. A workstation and its control modules are called computer assisted workcell (CAW). An intelligent CAW should determine control laws so t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.