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Conference Proceedings., IEEE International Conference on Systems, Man and Cybernetics

14-17 Nov. 1989

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  • 1989 IEEE International Conference on Systems, Man and Cybernetics. Conference Proceeding. (Cat. No.89CH2809-2)

    Publication Year: 1989
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    Freely Available from IEEE
  • Recent results on neural network architectures for vision and pattern recognition

    Publication Year: 1989
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (117 KB)

    Summary form only given. The author describes the development of a general-purpose automatic vision architecture. He clarifies how, with this architecture, scenic data about boundaries, textures, shading, depth, multiple spatial scales, and motion can be cooperatively synthesized in real time into a coherent representation of three-dimensional form. In order to computationally understand the labil... View full abstract»

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  • CAD-based computer vision: from CAD models to relational graphs

    Publication Year: 1989, Page(s):162 - 167 vol.1
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (593 KB)

    The authors outline their approach for automatic translation of geometric entities produced by a CAD system into a relational graph structure. They have developed a system which uses 3-D object descriptions created on a commercial CAD system and expressed in the industry-standard IGES form, and performs geometric inferencing to object a relational graph representation of the object which can be st... View full abstract»

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  • Variations of the phase-only filter

    Publication Year: 1989
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (26 KB)

    Summary form only given, as follows. An alternative to the classical method filter, namely the phase-only filter, is shown to be useful for pattern recognition and image correlation. It exhibits extremely narrow correlation peaks with very small sidelobes, better discrimination between similar objects, and 100% throughput when implemented optically. Several alternatives derived from the phase-only... View full abstract»

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  • Segmentation of document images

    Publication Year: 1989, Page(s):1062 - 1067 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    Several methods for segmentation of document images are explored. The authors pose the segmentation operation as a statistical classification task with two pattern classes: print and background. A number of classification strategies are available. All require some prior information about the distribution of gray levels for the two classes. Learning (either supervised or unsupervised) and automatic... View full abstract»

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  • Experiments on a lattice theory of operator mental models

    Publication Year: 1989
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (105 KB)

    Summary form only given. The importance of mental models in complex control tasks is discussed, and the lattice theory of mental models is described. Plans for a series of experiments using a simulation developed with the Lab View programming language to validate the lattice theory of mental models are reported.<> View full abstract»

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  • FAIT: a systematic methodology for identifying system design issues and tradeoffs

    Publication Year: 1989, Page(s):1036 - 1038 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    As the role of automation in complex systems grows, so does the complexity of the system design process. Unintended consequences of automation may arise from unforeseen system failures, human errors, miscommunication between human and machine, and a great many other aspects of the interactions, among human, machine, and environment. To address these concerns, a methodology to identify and prioriti... View full abstract»

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  • A knowledge acquisition and representation scheme for constraint based and parallel systems

    Publication Year: 1989, Page(s):1030 - 1035 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    A knowledge acquisition and representation scheme is introduced which is suited both to serial processing in production systems and to a constraint-based representation evaluated in parallel. Two applications are described: a rule-based system for financial risk assessment in life insurance underwriting, and a decision-support aid for energy management in a steel plant. These have been programmed ... View full abstract»

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  • Direct access storage device (DASD) modeling and validation

    Publication Year: 1989, Page(s):1024 - 1029 vol.3
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    In a distributed environment where data are distributed and stored in individual DASDs, the performance of each of these DASD subsystems is critical to overall system performance. Hence, in order to size the DASD subsystems within a distributed environment appropriately, a flexible and robust planning tool is needed. A planning tool in the form of a robust simulation-based model is proposed for th... View full abstract»

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  • Internal model mismatch in the optimal control model

    Publication Year: 1989, Page(s):731 - 737 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    A general formulation of the optimal control model of the human operator is presented. This formulation dispenses with the assumption that the operator has an accurate internal model of the system dynamics and other parameters affecting his control behavior. It has applications to learning and transfer of training situations where the operator refines his behavior over a period of time. Validation... View full abstract»

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  • A normative descriptive approach to team distributed scheduling

    Publication Year: 1989, Page(s):466 - 473 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Human team resource allocation scheduling as motivated by tactical decision-making problems in naval battle group command and control is considered. In these cases, commanders who are geographically separated must coordinate their resources and actions to prosecute a variety of hostile threats in a timely manner. To investigate such a distributed scheduling problem an experimental paradigm was dev... View full abstract»

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  • Parallel reasoning in recursive causal networks

    Publication Year: 1989, Page(s):934 - 939 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Reasoning under uncertainty is one of the most important challenges in expert systems and some other branches of AI. Computational efficiency is a primary problem in implementing any practical system. In order to improve computational efficiency, several methods have been proposed to exploit the parallelism inherent in reasoning under uncertainty. However, some of these models can be used only in ... View full abstract»

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  • A technique to compensate for disparate sources in evidence combination

    Publication Year: 1989, Page(s):1022 - 1023 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    Any decision procedure that is applied to a given problem involves both the gathering of relevant information from different sources and, when possible, accounting for the reliability of each source or group of sources. Due to insufficient knowledge, it may not be possible to isolate an unreliable or poor source of information. However, if a set of sources provides information to a decision algori... View full abstract»

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  • Experimental studies of manual control in optimal control tasks

    Publication Year: 1989, Page(s):725 - 730 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    Some features of human operator's ability in optimal control tasks are experimentally studied. A subject is instructed to control a plant properly by manipulating a potentiometer which produces an input to the plant. At the same time he is requested to decrease the value of a performance index shown to him after each trial; the index evaluates his control action based on a formula. It is shown tha... View full abstract»

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  • Segmentation and grouping of object boundaries

    Publication Year: 1989, Page(s):570 - 575 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    A method is presented to detect curvilinear structures in 2D images. The approach is based on a generalization of the Hough transform that is different from its traditional, template-based generalizations. With this method, global interaction of edge elements is reduced through the use of the Delaunay graph in utilizing the Hough transform. The algorithm as it is currently implemented needs to be ... View full abstract»

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  • An incremental genetic algorithm for real-time optimisation

    Publication Year: 1989, Page(s):321 - 326 vol.1
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The genetic algorithm, operated in batch mode, evaluates the whole population in some environment and generates a new population through selection, crossover, and mutation. In a real-time learning situation, where the population can be evaluated only sequentially, much of the computation and all of the learning is thus concentrated into one time interval between the evaluation of the last member o... View full abstract»

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  • A fat orthogonal search method for biological time-series analysis and system identification

    Publication Year: 1989, Page(s):459 - 465 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The fast orthogonal search method is illustrated for carrying out both system identification and time-series analysis of biological processes. It is first shown how the method can be used to rapidly obtain concise and accurate difference equation models of nonlinear dynamic systems. Then it is considered how the fast orthogonal algorithm enables accurate identification of cascades of alternating d... View full abstract»

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  • Optical correlator guidance and tracking field tests

    Publication Year: 1989, Page(s):645 - 650 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    A demonstration of the capabilities and limitations of an optical correlator in a realistic environment has been undertaken. The testing is divided into several phases from laboratory-type data gathering to a fully functional helicopter-delivered demonstration missile. The basic research performed has led to three fully fieldable test units which have proved to be rugged and dependable under norma... View full abstract»

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  • The control and supervision of groups of elevators using the blackboard architecture approach

    Publication Year: 1989, Page(s):99 - 104 vol.1
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    A novel approach to the control and supervision problem for groups of elevators has been successfully developed and tested by simulation. The control and supervisory tasks have been implemented using the blackboard approach to problem solving in which several knowledge sources cooperate, providing a very flexible problem solving framework. The blackboard shell control unit developed in this study ... View full abstract»

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  • Multilevel data-fusion for detection of moving objects

    Publication Year: 1989, Page(s):931 - 933 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    A knowledge-based vision system called DOORS (Distributed Object-Oriented Recognition System), for obstacle detection and tracking, is presented. It integrates multisensory information sources by adaptively selecting appropriate fusion strategies at the abstraction levels of both physical and virtual sensors. The basic methodology adopted for data representation and processing control has several ... View full abstract»

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  • A unified approach for clinical decision making

    Publication Year: 1989, Page(s):1020 - 1021 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    A methodology based on rough sets has been developed to aid physicians in determining the most likely diagnostic hypothesis to account for a set of patient findings. The domain of valvular heart disease is used to test solution methods that should be applicable to other medical areas. A key design philosophy underlying rough sets is that the physician should have control of the computer interactio... View full abstract»

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  • The mixed coordination method and its application to the hydroelectric scheduling problems

    Publication Year: 1989, Page(s):1173 - 1178 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    A new approach is presented for solving long-horizon, constrained optimal control problems by using the mixed coordination method. The method was originally developed for unconstrained optimal control problems, with key ideas including time decomposition, mixed coordination and parallel processing. In extending the method to constrained problems, constraints on state and control variables are rela... View full abstract»

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  • Topological complexes in analysis and design of large scale system-factorization methodology

    Publication Year: 1989, Page(s):390 - 392 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Large-scale management information systems, knowledge-based systems, neural systems, control systems and others are becoming extremely sophisticated. In order to investigate their hierarchical structure the author considers such systems as topological spaces. These systems are partitioned into numerous subsystems, cells or elements in the process of their analysis and design. Such decomposition is... View full abstract»

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  • Optical variables and control strategy used in a visual hover task

    Publication Year: 1989, Page(s):719 - 724 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    Determinants of performance in a simulated hover task are examined. This task uses an extremely simplified vehicle model with only three degrees of freedom: longitudinal (fore/aft), lateral (left/right), and vertical (up/down). No rotational motions are simulated. Only one control manipulation is allowed, namely control of vertical craft velocity. The task uses a fixed base simulator with three ad... View full abstract»

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  • Path tracking of robot manipulator with prescribed sliding mode

    Publication Year: 1989, Page(s):568 - 569 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (132 KB)

    A design procedure is developed for obtaining continuous path tracking of a robot manipulator with variable structure controller. The planned trajectory is utilized to deduce the switching surfaces so that the resulting sliding mode can be prescribed according to the desired path. An algorithm is proposed to specify the rate of approach to the switching surfaces such that the problem of chattering... View full abstract»

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