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AI Systems in Government Conference, 1990. Proceedings., Fifth Annual

Date 6-11 May 1990

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  • Proceedings. The Fifth Annual AI Systems in Government Conference (Cat. No.90CH2875-3)

    Publication Year: 1990
    Request permission for commercial reuse | PDF file iconPDF (92 KB)
    Freely Available from IEEE
  • Operational planning and monitoring with envelopes

    Publication Year: 1990, Page(s):24 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    Work which focuses primarily on data structures called envelopes which are critical to the activities of monitoring plans and projecting their progress is presented. Envelopes have been implemented on an artificial intelligence (AI) planner for real-time control of forest fires (called PHOENIX) which generates plans, monitors them during execution, and revises them during execution when they go am... View full abstract»

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  • KINDEN: knowledge-based INtelligent VLSI design ENvironment

    Publication Year: 1990, Page(s):96 - 103
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    KINDEN, and experimental ASIC design environment based on a central-object-oriented model base, is described. KINDEN's approach is a departure from most research in applying artificial intelligence (AI) technology to problems in the VLSI design domain which has typically focused on form of design synthesis or decomposition. KINDEN is a high-level ASIC digital signal-processing (DSP) design system,... View full abstract»

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  • A three-tiered parsing approach for operational systems

    Publication Year: 1990, Page(s):150 - 156
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    A three-tiered approach to parsing that takes advantage of as much syntactic and semantic information as needed to create accurate interpretations of input efficiently is described. While syntactic structure is assumed to be the fundamental basis for subsequent semantic interpretation, semantic analysis and insights from sublanguage analysis are utilized during parsing to produce a semantically co... View full abstract»

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  • Motion estimation of a rigid planar patch: a robust computational technique

    Publication Year: 1990, Page(s):199 - 206
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    Robust computing procedures for recovering the motion parameters of a planar patch are presented. Two new concepts are introduced: a virtual plane that is normal to the translational vector and the ratio of the depths of a featured point at two different times. These two concepts drastically simplify the analysis and lead to simple and robust procedures for recovering the motion parameters. The ro... View full abstract»

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  • Methods for selecting promising expert system applications

    Publication Year: 1990, Page(s):14 - 21
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Two well-known approaches to selecting promising expert system applications, the checklist approach and the generic task approach, are compared and evaluated. Improvements to and criticisms of the two methods are discussed. A new method, the cognitive-technology fit approach, that attempts to overcome some of the deficiencies found in the other two methods is introduced. The cognitive-technology f... View full abstract»

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  • Integrating spatial data from text and vision

    Publication Year: 1990, Page(s):188 - 194
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    Issues involved in the fusion of spatial data from textual messages with visual images are addressed. Although geometric reasoning has been successfully applied within image understanding, spatial reasoning using the relative and approximate cues provided in text messages is not yet well understood. Approaches to these issues and the experience gained from a prototype implementation are described.... View full abstract»

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  • Expert systems catching on at the Navy Finance Center

    Publication Year: 1990, Page(s):2 - 5
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    The evolution of the expert system program at the Navy Finance Center from its conception to its successful establishment is discussed. The management decisions and actions leading to a successful pilot project in former spouse survivor benefit plan adjudication, the training of domain experts to create their own expert systems, creating an environment that will promote the success of expert syste... View full abstract»

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  • Object-oriented inventories for simulations of manufacturing processes

    Publication Year: 1990, Page(s):176 - 179
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    It is shown that an object-oriented approach to inventories makes the simulation of manufacturing processes much simpler and easier to maintain. A complete set of functionalities for inventory objects, along with their hierarchical class structure and the attributes (slots) ass,ociated with each class is presented. It is not claimed that these functionalities are mature, but they appear to be quit... View full abstract»

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  • Technology transfer utilizing automated knowledge acquisition tools

    Publication Year: 1990, Page(s):88 - 93
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    An application for expert systems that takes advantage of their capability to improve productivity and carry out technology transfer is described. There is a vast need for routine reporting on the evaluation of the capability of weapon systems to withstand the effects of nuclear weapons. Six expert systems have been developed which demonstrated productivity improvements by a factor to 10 to 30 in ... View full abstract»

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  • A multi-user, relationally based inference engine

    Publication Year: 1990, Page(s):61 - 69
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    A multiuser, shared-access, centralized-knowledge-base inference engine which runs in a concurrent-access multiprogramming environment is presented. The system requires no specialized artificial intelligence (AI) hardware or software, is application independent and allows any number of related or unrelated application knowledge bases to be stored in a single, common knowledge structure View full abstract»

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  • A linguistically sound approach to content analysis of natural language text

    Publication Year: 1990, Page(s):142 - 149
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    An approach to text content analysis aimed at utilizing linguistic structure effectively within a robust, pattern-directed framework is described. The method, which is under development as part of the ROBIN (robust interpreter) text analysis system, uses a bottom-up chart parser to collect information about the linguistic structure of the input. The chart is then subjected to rule-based pattern ma... View full abstract»

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  • Artificial intelligence scheduling for NASA's Hubble Space Telescope

    Publication Year: 1990, Page(s):33 - 39
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    An artificial intelligence (AI) system called Spike has been implemented for scheduling observations with NASA's Hubble Space Telescope. The system incorporates innovative methodologies for representing and reasoning with scheduling constraints and preferences and for conducting scheduling search. For the former, a combination of constraint satisfaction techniques and weight-of evidence combinatio... View full abstract»

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  • Services and information management for decision support

    Publication Year: 1990, Page(s):104 - 111
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    An overview is given of the SIMS (services and information management for decision systems) project, which integrate several computer services into a single, seamless system, as seen from the user's perspective. This relieves the user of the need to be familiar with all the services available from the system, enabling the user to make requests as though dealing with a single entity. SIMS analyzes ... View full abstract»

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  • PUNDIT apprend le Francais: the PRATTFALL machine-translation module

    Publication Year: 1990, Page(s):157 - 167
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    PRATTFALL, an English-to-French machine-translation (MT) module built on top of the PUNDIT text-understanding system, is described. PRATTFALL is implemented in Prolog/T (as is PUNDIT) and is based on M.C. McCord's (1986) LMT system. PRATTFALL comprises components for transfer, restructuring, and inflection and has successfully translated a small subset of one of PUNDIT's corpora of messages View full abstract»

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  • A new level of language generation technology: capabilities and possibilities

    Publication Year: 1990, Page(s):208 - 216
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    A description is given of how Penman, one of the largest language generators in the world, has been restructured to make it one of the easiest to use, requiring semantic (i.e. domain-based) input instead of syntactic forms. How the presence of powerful sentence-generator technology allows the development of a number of new projects is outlined. It is noted that the eight possible directions of gro... View full abstract»

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  • Learning by examples with uncertainty for the adaptive diagnostic system

    Publication Year: 1990, Page(s):195 - 198
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    A customized AQ/STAR series learning-by-examples technique was used to learn uncertain diagnostic knowledge for a real-world domain. Built-in-test (BIT) patterns in the form of if-then rules were created which will deduce faulty subcomponents, given a history of BIT results. Software in which the diagnostic knowledge was created from a portion of the data was developed. Three different portions of... View full abstract»

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  • Benchmark programs for evaluating knowledge-based performance requirements

    Publication Year: 1990, Page(s):6 - 13
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    A set of benchmark programs that have many of the characteristics of full-sized, complex knowledge-based systems are presented. They are: Weaver, a VLSI routing program; Rubik, which solves the Rubik's cube problem; Tourney, which assigns match schedules for a tournament; and Big Conflict, a program designed to stress the Rete matching algorithm. A methodology for characterizing knowledge-based sy... View full abstract»

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  • A parallel implementation of a belief maintenance system

    Publication Year: 1990, Page(s):180 - 186
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    An algorithm to perform belief maintenance was implemented on the Butterfly Plus parallel processor. This algorithm, which handles reasoning with uncertainty, is used in a system that performs classification problem solving. The belief maintenance scheme uses a network to represent a hypothesis of the domain. The belief updating scheme is inherently parallel; incoming evidence can be attached to a... View full abstract»

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  • Knowledge Base Change Monitor

    Publication Year: 1990, Page(s):72 - 79
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    The knowledge Base Change Monitor provides capabilities to track and analyze changes to the knowledge used by an expert system. This information can be used to evaluate proposed changes, evaluate performance of a changed system and provide information necessary for maintaining an evolving knowledge base. These capabilities are essential in large, complex production systems. The Knowledge Base Chan... View full abstract»

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  • A constraint directed approach for communication network design/planning

    Publication Year: 1990, Page(s):40 - 45
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    A constraint-directed reasoning architecture is described that produces satisfactory solutions without global backtracking for the problem of rapidly configuring a transportable communications network. This problem requires that equipment be placed so that subscribers connected either by telephone line or radio can communicate with other network subscribers. It is shown that this is a difficult pr... View full abstract»

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  • A knowledge-based multi-modal interface

    Publication Year: 1990, Page(s):112 - 119
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    The construction of the user interface is extremely costly, with some estimates as high as 60% of the development of a software system. Compounding the problem is the large number of interface modalities which exist (graphics, forms, natural language, etc.) and which the end-user would like to have available. The author chose a Navy command-and-control briefing task currently performed manually at... View full abstract»

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  • Diagnostic reasoning at multiple levels of abstraction

    Publication Year: 1990, Page(s):168 - 175
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    A precise domain-independent computational model for diagnostic problem-solving at multiple levels of abstraction is presented. The knowledge representation framework allows causal knowledge to be represented in a precise, yet natural, way that reflects a human diagnostician's experience in guiding diagnostic reasoning at multiple levels of abstraction. The inference mechanism clearly defines how ... View full abstract»

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  • Control and valuation in human cognition

    Publication Year: 1990, Page(s):217 - 224
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    A theoretical model of human cognition that attempts to explain how cognition is controlled and how humans determine what is important is outlined. There are three concepts critical to the model: motivational states (goals) structure and control all cognitive processes; a top-level mechanism controls and integrates processing of conscious and unconscious streams of cognition; and goals are selecte... View full abstract»

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  • Knowledge management: an abstraction of knowledge base and database management systems

    Publication Year: 1990, Page(s):80 - 87
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    KNOMAD, a knowledge management design system, is a collection of tools built in layers. The layered architecture provides two major benefits: the ability to flexibly apply only those tools that are necessary for an application, and the ability to deep overhead, and thus inefficiency, to a minimum. KNOMAD is designed to manage many knowledge bases in a distributed environment. Three very different ... View full abstract»

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