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[1989] Proceedings. The Annual AI Systems in Government Conference

27-31 March 1989

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Displaying Results 1 - 25 of 47
  • Proceedings of the Annual AI Systems in Government Conference (IEEE Cat. No.89CH2715-1)

    Publication Year: 1989
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    Freely Available from IEEE
  • Cronus: a distributed computing environment

    Publication Year: 1989
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (61 KB)

    Summary form only given. Cronus was developed to make the integration of large distributed applications, such as command and control systems, feasible to build, maintain, and operate. It has the ability to operate in heterogeneous environments that include different network architectures, host types, operating systems, and programming languages. Its portability and interoperability make it possibl... View full abstract»

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  • A command and control system based on a multi-media object-oriented data base and a logic programming language

    Publication Year: 1989, Page(s):126 - 132
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    The system is based on a multi-media object-oriented data base management system G-BASE, and a logic programming language, G-LOGIS. The paper discusses VORAS, the multi-user prototype of the data base developed in a research context and G-BASE the commercially available product for workstations. The authors report how they used the simple and powerful model of recursive frames (the property driver... View full abstract»

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  • Applying knowledge-based expert system to meat grading

    Publication Year: 1989, Page(s):120 - 123
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    The author presents an ongoing project, which has the immediate objective of developing a knowledge-based expert system to assist meat graders and an ultimate objective of automating the meat grading process through applications of image processing, pattern recognition, and expert systems. A voice-input, knowledge-based system for grading carcass beef has been developed and tested. The meat grader... View full abstract»

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  • Prospector II

    Publication Year: 1989, Page(s):88 - 92
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Prospector II has been designed as a frame-based expert system and the successor to PROSPECTOR to assist the geologist in performing regional mineral resource assessments. The changes that have occurred relate to the role of descriptive mineral deposit models in resource assessment and to the arrival of graphics-oriented workstations. These changes have brought about an expansion of the volunteer ... View full abstract»

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  • Expert systems as job training aids

    Publication Year: 1989, Page(s):113 - 119
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The author presents a proposal for the development of a general training aid that can be used with expert job aids to enhance on-the-job training. The training aid is based on a goal-directed architecture and can interact in several ways with a trainee, either passively, actively, or responsively. The focus for an initial test of the training aid will be procedure training based on an expert proce... View full abstract»

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  • Deep domain models for discourse analysis

    Publication Year: 1989, Page(s):195 - 200
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    The authors address the problem of discourse analysis, and in particular finding causal relations between facts mentioned in messages, using a detailed domain model. This work is part of the PROTEUS (Prototype Text Understanding System) project, whose objective is to understand short narrative message about equipment installed in Navy ships. Casualty reports (CASREPs) describe failures of this equ... View full abstract»

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  • Constraint-based image understanding system for aerial imagery interpretation

    Publication Year: 1989, Page(s):141 - 147
    Cited by:  Papers (1)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    The authors describe a constraint-based image understanding system, named COBIUS, for aerial imagery interpretation. COBIUS consists of knowledge bases for domain objects spatial and temporal constraints, control strategies, blackboard areas to instantiate hypotheses of objects and constraints, and an image feature database to fuse results from multiple image segmentation modules. Domain-specific ... View full abstract»

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  • Knowledge intensive empirical learning using multiple levels of background knowledge

    Publication Year: 1989, Page(s):157 - 163
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The author describes a substructure discovery system, PLAND, that combines empirical learning methods with knowledge-intense learning algorithms. Unlike other systems which combine similarity-difference-based and explanation-based learning techniques at a single level, the PLAND system uses knowledge to direct the learning process on three distinct levels. This multileveled approach to learning al... View full abstract»

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  • The PUNDIT natural-language processing system

    Publication Year: 1989, Page(s):234 - 243
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    The authors describe the PUNDIT (Prolog Understanding of Integrated Text) text-understanding system, which is designed to analyze and construct representations of paragraph-length text. PUNDIT is implemented in Quintus Prolog, and consists of distinct lexical, syntactic, semantic, and pragmatic components. Each component draws on one or more sets of data, including a lexicon, a broad-coverage gram... View full abstract»

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  • Probable implication, the contrapositive, and contingency tables

    Publication Year: 1989, Page(s):9 - 13
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    In everyday life, the deductive logic of mathematical reasoning is generally replaced by inductive logic, which usually derives uncertain conclusions from a body of observed facts. The authors examine this distinction using probabilities based on 2×2 contingency tables. Some anomalies are discussed, such as the difference between the empirical probability of the implication A=>B and that ... View full abstract»

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  • A hybrid approach to target tracking

    Publication Year: 1989, Page(s):80 - 87
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB)

    The author describes a proposed AI (artificial intelligence) system for tracking the activity of a known set of targets given a time sequence of reports which contain clues to targets' identity and position. The system is oriented toward tracking multiple highly agile targets; continuous motion is not assumed. An example concerns bird tracking. The system is hybrid in that it combines a production... View full abstract»

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  • Policy analysis and decision aids for energy crisis management

    Publication Year: 1989, Page(s):44 - 49
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The authors describe the feature of a knowledge-based system which has been prototyped and demonstrated for the USA Office of Energy Emergencies but not yet carried through to the status of a production system. A decision aid has been prototyped in ARITY/Prolog which efficiently guides the microcomputer user through the development of an energy crisis scenario, the available policy options, the ac... View full abstract»

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  • Case study: applying expert systems technology to testing phase of software life cycle

    Publication Year: 1989, Page(s):108 - 112
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Describes the use of an expert-systems approach to automation of systems and integration testing for validation of complex, real-time communications software. The approach permits a `state'-based rather than path- or branch-based testing style. States can be associated with high-level system requirements to give a measure of test coverage. The benefits and weaknesses realized from using an embedda... View full abstract»

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  • The Carryback Processing Assistant: a study in case processing

    Publication Year: 1989, Page(s):218 - 225
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    Case processing involves amending, correcting, or updating an existing account. It is the least automated type of processing in the Internal Revenue Service. The author describes how a constraint network and a process called discrepancy resolution can be used to limit the amount of input data needed to process a case. He presents results achieved by the Carryback Processing Assistant, a system des... View full abstract»

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  • The DBG message understanding system

    Publication Year: 1989, Page(s):258 - 265
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB)

    The DBG (Data Base Generator) message understanding system takes as input the text of military messages of various types and produces as output a representation of the content of the messages in the form of instantiated templates, which are frame structures specifying the properties of entities and events in particular domains. These structures can then be used to generate sets of data elements fo... View full abstract»

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  • Query reformulation strategies for an intelligent search intermediary

    Publication Year: 1989, Page(s):65 - 71
    Cited by:  Papers (2)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The authors describe an intelligent search intermediary to help end-users locate relevant passages in large online full-text databases. Passage retrieval has advantages in efficiency and effectiveness over traditional document retrieval yet is more computationally tractable than question-answering systems under development by researchers in artificial intelligence. However, casual users need assis... View full abstract»

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  • Environs-an expert system: application to the impact of environmental pollution on the health of industrial workers and general public

    Publication Year: 1989, Page(s):33 - 36
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    An interactive system called Environs which enables experts gradually to construct a knowledge base is described. This rule-based expert system makes it possible for an expert to convey his expertise to the system without the intervention of a computer specialist. This knowledge-based production rule system is constructed to reduce the superfluity of rules and eliminate inconsistency, thereby secu... View full abstract»

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  • Parsing for prosody: what a text-to-speech system needs from syntax

    Publication Year: 1989, Page(s):188 - 194
    Cited by:  Papers (3)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    The authors describe an experimental text-to-speech system that uses a syntactic parser and prosody rules to determine prosodic phrasing for synthesized speech. It is shown that many aspects of sentence analysis that are required for other parsing applications, e.g. machine translation and question answering, become unnecessary in parsing for text-to-speech. It is possible to generate natural-soun... View full abstract»

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  • An automatic network troubleshooter for throughput bottlenecks in computer networks

    Publication Year: 1989, Page(s):296 - 302
    Cited by:  Papers (4)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Government agencies operate several large computer networks; diagnosing and repairing performance problems on these networks is an expensive task. The Automatic Network Troubleshooter (ANT) project's goal is to reduce this expense by reducing the mean-time-to-repair for performance problems. ANT uses a model-based troubleshooting technique: first creating an executable model of network misbehavior... View full abstract»

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  • Development and evaluation of artificial intelligence techniques for tactical decision support systems

    Publication Year: 1989, Page(s):133 - 140
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    To facilitate research into multiagent planning issues, the Command and Control Testbed Using Simulation (CACTUS) and the Situation-based Autonomous Reasoner in a GBB (ground-based battle) Environment (SARGE) have been developed. CACTUS is a simulation of combat operations for platoon-sized units in battalion-level engagements. Those battlefield elements that affect the planning process of the for... View full abstract»

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  • A signal analysis expert system for signal noise reduction

    Publication Year: 1989, Page(s):93 - 99
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    A signal-analysis expert system (SAES) has been developed to address the problem of noise-editing pulse-position modulation (PPM) signals in preparation for analysis. These signals have historically required manual noise editing, or a combination of manual and semiautomatic editing techniques. Due to the nature of the signal, standard frequency-domain noise-reduction techniques are not applicable.... View full abstract»

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  • A prototype control document analyst for the Space Station program

    Publication Year: 1989, Page(s):201 - 208
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    Using techniques for natural-language understanding, a prototype called the Control Document Analyst (CDA) was developed to assist engineers checking interface descriptions and functional requirements in Space Station architectural control documents. The authors describes the background, objectives, approach, and implementation of the CDA. Finally, conclusions are drawn from its development and po... View full abstract»

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  • Learning from historical precedent

    Publication Year: 1989, Page(s):150 - 156
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    Explanation-based learning, a method of abstracting general principles from a small number of prior cases, is discussed. The author demonstrates the feasibility of applying this method to economic sanction incidents. This approach is contrasted with regression analysis, a traditional quantitative method. A method for integrating these two approaches is proposed View full abstract»

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  • Explanation-based learning of diagnostic heuristics: a comparison of learning from success and failure

    Publication Year: 1989, Page(s):164 - 168
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    The author compares strategies of learning from failures to learning from successes in the context of a generate-and-test problem solver. One result is fairly straightforward: failure-driven learning creates rules which distinguish between failures. This is demonstrated by the fact that the number of hypotheses decreases after learning. A more subtle result is that the performance of the system, m... View full abstract»

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