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IEEE Transactions on Systems, Man, and Cybernetics

Issue 3 • Date Mar 1994

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Displaying Results 1 - 15 of 15
  • A connectionist approach for clustering with applications in image analysis

    Publication Year: 1994, Page(s):365 - 384
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1772 KB)

    A new neural network strategy for clustering is presented. The network works on the histogram and the process is similar to mode separation. The number of clusters are autonomously detected by the network and it overcomes some major difficulties encountered by mode separation techniques. Clustering is done by first selecting the prototypes and then assigning patterns to one of the prototypes based... View full abstract»

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  • Minimal consistent set (MCS) identification for optimal nearest neighbor decision systems design

    Publication Year: 1994, Page(s):511 - 517
    Cited by:  Papers (83)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    A new approach is presented in this study for tackling the problem of high computational demands of nearest neighbor (NN) based decision systems. The approach, based on the concept of an optimal subset selection from a given training data set, derives a consistent subset which is aimed to be minimal in size. This minimal consistent subset (MCS) selection, in contrast to most of the other previous ... View full abstract»

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  • Uncertainty management for rule-based systems with applications to image analysis

    Publication Year: 1994, Page(s):470 - 481
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    In image analysis, there have been few effective procedures that deal with a wide class of imagery acquired by different sensors under different environmental conditions. The success of a given classification algorithm is dependent upon pattern familiarity, background, and the image acquisition process. Thus, with the inaccuracies in the acquisition process, as well as incomplete or incorrect know... View full abstract»

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  • Proof of correctness for ASOCS AA3 networks

    Publication Year: 1994, Page(s):503 - 510
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    Analyzes adaptive algorithm 3 (AA3) of adaptive self-organizing concurrent systems (ASOCS) and proves that AA3 correctly fulfills the rules presented. Several different models for ASOCS have been developed. AA3 uses a distributed mechanism for implementing rules so correctness is not obvious. An ASOCS is an adaptive network composed of many simple computing elements operating in parallel. An ASOCS... View full abstract»

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  • Discontinuity preserving regularization of inverse visual problems

    Publication Year: 1994, Page(s):455 - 469
    Cited by:  Papers (51)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1484 KB)

    The method of Tikhonov regularization has been widely used to form well-posed inverse problems in low-level vision. The application of this technique usually results in a least squares approximation or a spline fitting of the parameter of interest. This is often adequate for estimating smooth parameter fields. However, when the parameter of interest has discontinuities the estimate formed by this ... View full abstract»

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  • Self-organizing neural network as a fuzzy classifier

    Publication Year: 1994, Page(s):385 - 399
    Cited by:  Papers (72)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1216 KB)

    This paper describes a self-organizing artificial neural network, based on Kohonen's model of self-organization, which is capable of handling fuzzy input and of providing fuzzy classification. Unlike conventional neural net models, this algorithm incorporates fuzzy set-theoretic concepts at various stages. The input vector consists of membership values for linguistic properties along with some con... View full abstract»

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  • Collision avoidance of two general robot manipulators by minimum delay time

    Publication Year: 1994, Page(s):517 - 522
    Cited by:  Papers (33)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    A simple time delay method for avoiding collisions between two general robot arms is proposed. Links of the robots are approximated by polyhedra and the danger of collision between two robots is expressed by distance functions defined between the robots. The collision map scheme, which can describe collisions between two robots effectively, is adopted. The minimum delay time value needed for colli... View full abstract»

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  • A hybrid approach for robust diagnostics of cutting tools

    Publication Year: 1994, Page(s):482 - 492
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1152 KB)

    A new multisensor based hybrid technique has been developed for robust diagnosis of cutting tools. The technique combines the concepts of pattern classification and real-time knowledge based systems (RTKBS) and draws upon their strengths; learning facility in the case of pattern classification and a higher level of reasoning in the case of RTKBS. It eliminates some of their major drawbacks: false ... View full abstract»

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  • Adaptive control of unknown plants using dynamical neural networks

    Publication Year: 1994, Page(s):400 - 412
    Cited by:  Papers (182)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (772 KB)

    In this paper, we are dealing with the problem of controlling an unknown nonlinear dynamical system. The algorithm is divided into two phases. First a dynamical neural network identifier is employed to perform “black box” identification and then a dynamic state feedback is developed to appropriately control the unknown system. We apply the algorithm to control the speed of a nonlineari... View full abstract»

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  • Robotic manipulator control of generalized contact force and position

    Publication Year: 1994, Page(s):523 - 531
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    Considers the problem of control of generalized contact forces with a manipulator controller that has traditionally been regarded as a noncontact task trajectory controller. The open-loop control of generalized forces, suitable for tasks in which only crude force control is required, is achieved through the manipulation of the generalized position inputs of the robotic manipulator. An algorithm is... View full abstract»

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  • Subassembly identification and evaluation for assembly planning

    Publication Year: 1994, Page(s):493 - 503
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    This paper presents a method for the automatic generation of assembly sequences from a liaison graph representation of an assembly through the recursive decomposition of assembly into subassemblies. In order to increase the planning efficiency, the proposed assembly planning system automatically identifies and avoids those decomposition that incur physically infeasible assembly operation. This is ... View full abstract»

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  • On edge and line linking with connectionist models

    Publication Year: 1994, Page(s):413 - 428
    Cited by:  Papers (30)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1300 KB)

    In this paper two connectionist models for mid-level vision problems, namely, edge and line linking, have been presented. The processing elements (PE) are arranged in the form of two-dimensional lattice in both the models. The models take the strengths and the corresponding directions of the fragmented edges (or lines) as the input. The state of each processing element is updated by the activation... View full abstract»

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  • An analytical comparative study of a class of discrete linear basis transforms

    Publication Year: 1994, Page(s):531 - 535
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    For suitability to carry out a comparative study of discrete linear basis transforms, a parametric class of these transforms is considered. It is shown that under certain conditions on the parameters, every member of this class is superior to the Walsh-Hadamard transform for first-order stationary Markov process. For high correlation of this process, the class is proved to be inferior to the slant... View full abstract»

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  • Knowledge-based seismogram processing by mental images

    Publication Year: 1994, Page(s):429 - 439
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    The impact of pictorial knowledge representation is demonstrated for two examples of time series analysis in seismology. The approaches perform a) automated recognition of known event signatures and b) high-resolution onset timing of later phases. Both methods work well under extreme conditions of noise and achieved human-like performance in recognizing known situations. Crucial for this success o... View full abstract»

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  • Automating the layout of network diagrams with specified visual organization

    Publication Year: 1994, Page(s):440 - 454
    Cited by:  Papers (13)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1068 KB)

    Network diagrams are a familiar graphic form that can express many different kinds of information. The problem of automating network-diagram layout has therefore received much attention. Previous research on network-diagram layout has focused on the problem of aesthetically optimal layout, using such criteria as the number of link crossings, the sum of all link lengths, and total diagram area. In ... View full abstract»

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