By Topic

Sixth Conference on Artificial Intelligence for Applications

5-9 May 1990

Filter Results

Displaying Results 1 - 25 of 45
  • Sixth Conference on Artificial Intelligence Applications (Cat. No.90CH2842-3)

    Publication Year: 1990
    Request permission for commercial reuse | PDF file iconPDF (37 KB)
    Freely Available from IEEE
  • Knowledge based dynamic scheduling in a steel plant

    Publication Year: 1990, Page(s):108 - 113 vol.1
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    A description is given of dynamic scheduling of the production of parts on one or more manufacturing machines. The parts to be manufactured are assumed to have different characteristics and/or specifications such that either the machines have to be constantly adjusted or the machines pose constraints on the manner in which the parts may be scheduled. The production schedule is prepared using the I... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Satisfying conflicting objectives in factory scheduling

    Publication Year: 1990, Page(s):101 - 107 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    The current state of research into, and implementation of, knowledge-based scheduling techniques is described. An investigation into the role of predictive techniques in building and maintaining good, balanced schedules is presented. Several different ways of constructing, propagating, and using predictive knowledge, such as a simple capacity plan or a more complicated probabilistic analysis, are ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An investigation into distributed constraint-directed factory scheduling

    Publication Year: 1990, Page(s):94 - 100 vol.1
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    An approach is presented to focus searches in a distributed system in individual agent search spaces so as to optimize decisions in the global space. The chosen domain is distributed-factory scheduling. Distributed decision-making in factory environments is important because factories are inherently distributed and because they need to effectively respond to change. The approach relies on a set of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An object-oriented and constraint-based knowledge representation system for design object modeling

    Publication Year: 1990, Page(s):146 - 152 vol.1
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    FREEDOM (Framework for Representing and Elaborating Design Object Models), a system for design object modeling, is presented. An object model, represented as a set of objects in this system, is not a mere data structure but an active entity which works to solve design problems. The knowledge representation provided in the system, based on the object-oriented paradigm, makes it possible to describe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of analogical planning to engineering design

    Publication Year: 1990, Page(s):244 - 249 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    The analogical graph matching (ANAGRAM) system, which performs analogical planning using a graph-match technique, is described. Given a target problem specification, ANAGRAM finds a similar problem from the database from which a solution can be derived. The difficulties that arise when an analogy fails because the base case is only partially applicable to the current problem are addressed. ANAGRAM... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Model-based automatic programming for plant control

    Publication Year: 1990, Page(s):281 - 287 vol.1
    Cited by:  Papers (12)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    A model-based automatic programming system for sequence control is described. The domain knowledge of the application area is discussed and an environment model that represents concepts of the domain-physical entities, actions and states, relations and conditions-in an extended semantic network is proposed. The system also has model-derivation methods. Because it uses a generic model to generate a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computer vision in a heterogeneous software and hardware environment

    Publication Year: 1990, Page(s):85 - 91 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    A well-developed modular, extensible vision system, based on a connectionist approach, is analyzed from a concurrent processing standpoint. This system can accurately reconstruct objects, using a set of locally derived features, from real, low-resolution range data. The approach is highly parallel in nature. An implementation of the system in a heterogeneous multiprocessing environment is examined... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Applying statistical knowledge to database analysis and knowledge base construction

    Publication Year: 1990, Page(s):30 - 36 vol.1
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    A software package, called KnowledgeSeeker, that combines statistical problem-solving algorithms with an interactive, graphically-oriented decision-tree display is discussed. It has a browser to enable end users to rapidly extract high-quality decision-making information from a database in the form of a decision tree or as a knowledge base of rules. KnowledgeSeeker captures statistical problem-sol... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • IDP: automating the CAD/CAM link by reasoning about shape

    Publication Year: 1990, Page(s):138 - 145 vol.1
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    A method and the components of an implemented system (IDP-Integrated Design and Planning) for integrating design and manufacturing processes are presented. AI techniques like cooperative reasoning and combining geometric evidence are used in a graph-based hypothesis. This generate-eliminate approach automatically extracts the shape primitives of a designed part and determines the relationships bet... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Knowledge-based decision support, preferences, and financial planning

    Publication Year: 1990, Page(s):222 - 228 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    Knowledge-based decision support for complex decision problems in a changing environment is discussed. The problems involve a sequence of decisions and require dynamic modifications of the representation. Decision making is modeled by means of a Negoplan system. Negoplan is based on a two-level rule formalism with logical variables and unification. The existence of multiple solutions of the proble... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Demonstrating artificial intelligence for space systems-integration and project management issues

    Publication Year: 1990, Page(s):191 - 197 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    As part of its systems autonomy demonstration project (SADP), the National Aeronautics and Space Administration (NASA) has recently demonstrated the Thermal Expert System (TEXSYS). Advanced real-time expert system and human interface technology was successfully developed and integrated with conventional controllers of prototype space hardware to provide intelligent fault detection, isolation and r... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new toolkit for non-admissible heuristic search

    Publication Year: 1990, Page(s):162 - 168 vol.1
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    A collection of tools for finding good solutions to cost-minimization problems by means of nonadmissible heuristic search is discussed. The origin of these tools lies in the assumption that many biased heuristics are orderly. Their usefulness will depend upon how well the orderliness assumptions are realized. Therefore, domain-dependent knowledge must be applied in selecting a good search strategy... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Case study of a knowledge-based system which plans molecular genetic experiments

    Publication Year: 1990, Page(s):257 - 263 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    A logic-based approach to planning recombinant DNA experiments is presented. Plans are constructed by attempting to match lists of constraints with existing molecules, with failure resulting in rule-directed decomposition of these constraints to create subproblems. Several AI techniques which are not traditionally associated with planning but which find application for this problem domain are used... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Plan recognition for intelligent interfaces

    Publication Year: 1990, Page(s):297 - 303 vol.1
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    A domain-independent assessment of plan recognition, with respect to its use in enhancing user interfaces, is presented. Plan recognition is a research area in automatic reasoning and is a promising approach to engineering better interfaces. Plan recognition makes interfaces more intelligent and interactive by providing an intelligent assistant that supports such tasks as advice generation, task c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • XDE: diagnosing devices with hierarchic structure and known component failure modes

    Publication Year: 1990, Page(s):48 - 54 vol.1
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    The Extended Diagnosis Engine (XDE), a program that incorporates hierarchic diagnosis and fault models into a model-based diagnosis framework, is discussed. XDE depends upon an assumption-based truth maintenance system (ATMS). The novel aspects of XDE are that the diagnosis descends through hierarchies, one describing the physical organization of the devices and another describing its functional o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Feedback directed modification of designs

    Publication Year: 1990, Page(s):237 - 243 vol.1
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Feedback-directed modification, a technique for efficiently improving the solution to a structure-sharing problem, is discussed. This technique uses an analysis of the solution to effect structural modifications to reduce resource usage. Efficiency is obtained through: the reuse of the previous solution and the addition of constraints to prevent subsequent modifications from undoing the changes. T... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Representation of models for solving real-world physics problems

    Publication Year: 1990, Page(s):274 - 280 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A computer program called a physics expert (APEX) has been developed to investigate the nature and contents of real-world physics problem models. As the representational primitives of the domain, two types of models are defined: canonical physical objects and physical models. During problem solving, the problem is represented in the form of a data connection network which is progressively augmente... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Real time expert system for predictive diagnostics and control of drilling operation

    Publication Year: 1990, Page(s):62 - 69 vol.1
    Cited by:  Papers (7)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (772 KB)

    The suitability and applicability of a real-time expert system for integrating multiple sensors for predictive diagnostics, monitoring, and supervisory control of a drilling operation in an automated manufacturing environment were investigated. The real-time IDES (influence diagram based expert system) performs probabilistic inference and expected-value decision-making in integrating dynamic but n... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Can competitive learning compete? Comparing a connectionist clustering technique to symbolic approaches

    Publication Year: 1990, Page(s):78 - 84 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    A comparison of competitive learning (a neural-network-based approach to data clustering) with established symbolic approaches is presented. Some of the shortcomings of competitive learning are discussed along with attempts at correcting them. The algorithm is extended to handle the performance task of missing feature prediction. Experimental results are compared with similar results of symbolic s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Security audit trail analysis using inductively generated predictive rules

    Publication Year: 1990, Page(s):24 - 29 vol.1
    Cited by:  Papers (14)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    A time-based inductive learning approach to security audit trail analysis is presented. The approach uses a time-based inductive engine to generate rule-based sequential patterns that characterize the behavior of a user. The time-based inductive approach substantially increases the discriminating capability of an anomaly detection system due to the added dimension of information given in the seque... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A simulated annealing method for mapping production systems onto multicomputers

    Publication Year: 1990, Page(s):130 - 136 vol.1
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    A methodology for mapping rule-based expert systems onto a message-passing multicomputer is presented. The method is based on static load balancing using simulated annealing to achieve a nearly optimal allocation of multiple production rules to processor nodes. The goal is to balance the initial load distribution and to avoid serious communication overhead among processor nodes at run time. A form... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Logos-TCS: an expert system language for operations management based on temporal constraint satisfaction

    Publication Year: 1990, Page(s):214 - 221 vol.1
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    It is shown that the precedence graph upon which popular analysis tools in operations management such as PERT/CPM depend, is a special case of the temporal constraint satisfaction (TCS) problem. TCS provides a richer set of temporal relationships than the precedence relationship. A temporal constraint system provides a metaphor (constraint propagation) to model the down-line effects of perturbatio... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spike: AI scheduling for NASA's Hubble Space Telescope

    Publication Year: 1990, Page(s):184 - 190 vol.1
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The Spike scheduling system, developed for scheduling astronomical observations for NASA's Hubble Space Telescope (HST), is described. Spike is an activity-based AI scheduler which incorporates innovative approaches to constraint representation and reasoning and scheduling search. Although developed for space telescope scheduling, the Spike system was designed around a general scheduling-constrain... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Managing AI system development in critical large scale applications

    Publication Year: 1990, Page(s):327 - 333 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    It is shown that it is possible to manage the introduction of an AI-based technology into an existing nonstandard mainframe-based computing environment within tight timescales and under the requirement of a very high level of quality. The introduction of this automation to SWIFT's (Society of Worldwide Interbank Financial Telecommunications) core business has necessitated the use of a project mana... View full abstract»

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