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Artificial Intelligence Applications, 1991. Proceedings., Seventh IEEE Conference on

Date 24-28 Feb. 1991

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Displaying Results 1 - 25 of 72
  • Proceedings. Seventh IEEE Conference on Artificial Intelligence Applications (Cat. No.91CH2967-8)

    Publication Year: 1991
    Request permission for commercial reuse | PDF file iconPDF (311 KB)
    Freely Available from IEEE
  • MEXSES: an expert system for environmental screening

    Publication Year: 1991, Page(s):294 - 298
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A rule-based expert system for environmental impact assessment is described which was implemented for the analysis of water resources development projects. The system uses hierarchical checklist questionnaires, organized by project types and problem classes, and an assessment procedure based on rules and descriptors that allow the analyst to classify subproblems in terms of their expected environm... View full abstract»

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  • Interactive diagnosis and repair of decision-theoretic models

    Publication Year: 1991, Page(s):289 - 293
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The authors present an intuitive, interactive method for diagnosing and repairing a formal decision-theoretic model, and describe the role of this method in interpretive value analysis (IVA), a general framework for modeling choices in expert systems that is at once formal and transparent. IVA's interpretation concepts provide an internally consistent vocabulary based on value theory for talking a... View full abstract»

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  • Combining decision theory and hierarchical planning for a time-dependent robotic application

    Publication Year: 1991, Page(s):282 - 288
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    The authors present the Rational Reasoning System (RRS), which integrates hierarchical planning with decision theory in order to make rational decisions in time-dependent situations. RRS controls a robot in a simulated hazardous environment and allows it to address time-dependent emergencies of various urgencies. RRS uses decision theory to constrain and focus the hierarchical construction of plan... View full abstract»

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  • Stratus: a prototype expert advisory system for terminal weather forecasting

    Publication Year: 1991, Page(s):150 - 154
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The methodology used to develop an expert system to predict low clouds is described. The expert system is based on the fundamental physical rules that govern the existence of clouds and is therefore location-independent. The first prototype, built using an expert system shell, confirmed the feasibility of the approach but showed that a much more efficient implementation would be required in order ... View full abstract»

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  • Specialized knowledge acquisition tool support compared to manual development-a case study

    Publication Year: 1991, Page(s):54 - 58
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    A case study into the effect of applying a domain-oriented knowledge acquisition (KA) tool to an expert system project is presented. A KA tool that acquires knowledge for experiment planning has been implemented. The effects of applying this tool have been evaluated and compared to manual development by conventional means. A manually acquired knowledge base has been used as a reference. To give an... View full abstract»

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  • Pattern-matching search of DNA sequences using logic grammars

    Publication Year: 1991, Page(s):3 - 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    An approach to DNA sequence analysis founded on principles and techniques of computational linguistics is described. By specifying elements of sequences with grammars, it is possible to perform search and analysis by parsing. Such grammars offer greater representational power than current methods in this domain by allowing an abstract, hierarchical, and declarative system for describing features o... View full abstract»

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  • AirLand Battle Management Program decision aids for battle management planning

    Publication Year: 1991, Page(s):164 - 167
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The AirLand Battle Management (ALBM) Program is a prototype demonstration project sponsored by DARPA and the US Army. Its goal is to demonstrate that advanced computer processing and artificial intelligence techniques, particularly cooperating expert systems, can be used to accelerate and improve the development of US Army manoeuver and fire support plans for airland battle forces. The program is ... View full abstract»

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  • Use of procedural programming languages for controlling production systems

    Publication Year: 1991, Page(s):71 - 75
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A new approach called UPPL, uses procedural programming languages, such as Lisp and C, to explicitly describe the plans of controlling production systems. As the key idea of implementing this, the authors view production systems as a collection of concurrent rule processes, each of which continuously monitors the global database and executes actions when its conditions match database entries. To b... View full abstract»

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  • Combining rules and state objects in a configuration expert system

    Publication Year: 1991, Page(s):275 - 279
    Cited by:  Patents (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    The authors have designed and implemented an expert system in the area of mechanical design that combines the rule-based paradigm of problem solving with a paradigm based on on search in a state space. KONEX uses the state space to represent intermediate designs and applies production rules to move to successor states. The authors have developed strategies to keep the search space at a manageable ... View full abstract»

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  • GIDEON: a genetic algorithm system for vehicle routing with time windows

    Publication Year: 1991, Page(s):322 - 328
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Addresses the vehicle routing problem with time windows (VRPTW). The VRPTW involves routing a fleet of vehicles, of limited capacity and travel time, from a central depot to a set of geographically dispersed customers with known demands within specified time windows. The authors describe GIDEON, a genetic algorithm system to heuristically solve the VRPTW. GIDEON consists of two distinct modules: a... View full abstract»

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  • Influence networks: a reactive planning architecture

    Publication Year: 1991, Page(s):354 - 360
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    An architecture for reactive planning, called an influence network, is presented. Most approaches to planning involve goal decomposition, action generation, and action fusion, the latter being the most difficult. In an influence network, fusion involves influences, rather than fully specified actions. An influence serves to constrain or bias the eventual selection of actions. Plans to satisfy indi... View full abstract»

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  • A resource-based paradigm for the configuring of technical systems from modular components

    Publication Year: 1991, Page(s):257 - 264
    Cited by:  Papers (9)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    In the resource-based paradigm, the interfaces through which technical systems, their components, and their environment interact are modeled as abstract resources, and each technical entity is characterized by the types and amounts of resources it supplies, consumes and uses. This intuitive model, derived in one application area, is shown to be in concordance with the design rationale of modular c... View full abstract»

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  • Using a description classifier to enhance deductive inference

    Publication Year: 1991, Page(s):141 - 147
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Descriptions are given of some of the emerging techniques and uses of classifier-based reasoning systems, specifically as they apply to the LOOM knowledge representation system. The author asserts that current generation expert system tools fail to achieve a satisfactory integration of frame knowledge and rule knowledge. He then describes a class of languages, exemplified by LOOM, that combine des... View full abstract»

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  • Model-based acquisition of inference structure

    Publication Year: 1991, Page(s):47 - 53
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    A model-directed acquisition of inference structures is introduced. It is a general knowledge acquisition system in that inference structures are the most common media among different domains. A library called OLD-WORLD is used to store a collection of inference structures, generalized from known domains and is used to guide the acquisition of new domain inference structures. Predicate calculus is... View full abstract»

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  • Exploiting text generation techniques in the provision of help

    Publication Year: 1991, Page(s):443 - 449
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Describes a marriage of techniques from the fields of text generation and intelligent help systems research designed to construct responses dynamically. The work exploits schema of rhetorical predicates to guide the generation process, introducing a novel, object-oriented architecture for text generation. Particular emphasis is given to the definition of rhetorical predicates in terms of the under... View full abstract»

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  • OMNI-a heterogeneous distributed advice giver

    Publication Year: 1991, Page(s):160 - 163
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The author presents an architecture for heterogeneous, distributed problem solving and describes work in progress on an application called OMNI, aimed at giving advice to users of enterprise level computing systems. Since OMNI's domain is too large to be manageable by any single intelligent program, the author employs a distributed problem-solving approach in which a heterogeneous collection of ex... View full abstract»

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  • TWIN: a parallel scheme for a production system featuring both control and data parallelism

    Publication Year: 1991, Page(s):64 - 70
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    A parallel scheme, called TWIN, for Rete-based production systems is proposed. The TWIN scheme exploits two aspects of the Rete algorithm parallelism: control parallelism in the structural features of the Rete network and data parallelism in token comparison at two-input nodes. TWIN is suited for building a simple, compact, bus-connected parallel system without shared memory or cache memory. An an... View full abstract»

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  • Optimizing knowledge-based system design

    Publication Year: 1991, Page(s):269 - 274
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    The authors present an approach to optimizing the design of a knowledge-based design (KBD) system so that it produces optimal or near-optimal results. It is subjective in nature, however, as a KBD system's performance is often justified by the examination of its designs by experts. One alternative, as shown here, is to apply the simulated annealing technique (SA) in designing a KBD system. During ... View full abstract»

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  • Application of symbolic machine learning to the recognition of texture concepts

    Publication Year: 1991, Page(s):224 - 230
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    The authors present an approach to the texture recognition problem that deals with noisy learning and testing data. The method incorporates symbolic machine learning to acquire texture descriptions. Then, these descriptions are optimized in order to remove some noisy/imperfect components. The' authors present methodology and experimental results showing the increase in system recognition effective... View full abstract»

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  • Task dependency modelling to support assembly plant design

    Publication Year: 1991, Page(s):212 - 216
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    The authors describe one component of the PAVE (plant assembly verification environment) system that provides an environment for industrial engineers (IEs) to design automobile assembly plants. Managing the dependencies between assembly tasks is a significant problem in designing large plants. The authors describe a system that is capable of building a dependency network between tasks based on the... View full abstract»

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  • Shape feature abstraction in knowledge-based analysis of manufactured products

    Publication Year: 1991, Page(s):198 - 204
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    The authors focus on shape feature recognition based on the differential depth perception filter, which reduces the number of topological entities. By defining features in terms of loops, as opposed to defining them in terms of low level topological entities, substantial geometric as well as topological variation among features is captured. The space of entities in which the search for features is... View full abstract»

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  • FMS scheduling using goal-directed conceptual aggregation

    Publication Year: 1991, Page(s):315 - 321
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    Presents an integrated knowledge-based approach to scheduling flexible manufacturing systems (FMS) using machine learning and simulation. A new learning heuristic based on conceptual clustering is developed, termed `goal-directed conceptual aggregation' (GDCA). GDCA differs from other learning heuristics in that it can effectively deal with complex dynamic situations through hierarchical structuri... View full abstract»

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  • A multi-level pattern matching method for text image parsing

    Publication Year: 1991, Page(s):183 - 189
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A multiple-level pattern matching approach to text image parsing is described. The parser assigns syntactic categories to words that occur in a two-dimensional image of a constrained block of text. Bottom-up information (from an image segmentation routine), that includes the number of lines of text, the number of words in each line, and an estimate of the number of characters in each word, is init... View full abstract»

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  • Solving n-ary constraint labeling problems using incremental subnetwork consistency

    Publication Year: 1991, Page(s):345 - 351
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Presents an algorithm for finding all solutions of n-ary constraint labeling problems while building constraint networks. The key principle of the algorithm alternating the instantiation of a newly chosen variable, and making the domain values, of already-instantiated variables consistent among them, until all variables are considered. The algorithm chooses variables for domain instantiat... View full abstract»

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