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IEEE Transactions on Systems, Man, and Cybernetics

Issue 3 • Date May/Jun 1991

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Displaying Results 1 - 20 of 20
  • Measures of confidence associated with combining classification results

    Publication Year: 1991, Page(s):690 - 692
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The problem under consideration is that of combining classification results from several classifiers. This problem was motivated by the US Navy's involvement in developing a system for integrating classification results from multiple sensors. As in any decision process one needs to quantify the uncertainty associated with the decision. A procedure based upon ranked lists from classification output... View full abstract»

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  • The adaptation of perceptrons with applications to inverse dynamics identification of unknown dynamic systems

    Publication Year: 1991, Page(s):634 - 643
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    The authors propose a new class of adaptation algorithms for single- and multilayer perceptrons with discontinuous nonlinearities. The behavior of the proposed algorithms is shown on an application example and simulation results are included. The simulations were performed using the SIMNON package developed for purpose of simulation of nonlinear systems. The results can be used to control unknown ... View full abstract»

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  • Optimized routing in flexible manufacturing systems with blocking

    Publication Year: 1991, Page(s):589 - 595
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Flexible manufacturing systems (FMSs) with limited storage capacity can be modeled as queuing networks with finite buffers and general service times. An approach is presented for improving the performance of such systems by distributing the routing probabilities across workstations in an optimal way. The proposed approach is suitable for online application in situations where analytic models are n... View full abstract»

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  • An analysis of a neural network with a fixed memory span

    Publication Year: 1991, Page(s):683 - 690
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    A study is made of a discrete neural model with a fixed memory span h. The model is described by a system of coupled nonlinear delay differential equations of the Krasovskii-Razumikhin type. After establishing some of the general properties of the model the effects of the memory spans are discussed in the cellular and network levels. The results of some simulations are presented, showing ... View full abstract»

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  • A survey of decision tree classifier methodology

    Publication Year: 1991, Page(s):660 - 674
    Cited by:  Papers (194)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1460 KB)

    A survey is presented of current methods for decision tree classifier (DTC) designs and the various existing issues. After considering potential advantages of DTCs over single-state classifiers, the subjects of tree structure design, feature selection at each internal node, and decision and search strategies are discussed. The relation between decision trees and neutral networks (NN) is also discu... View full abstract»

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  • Outline for a theory of intelligence

    Publication Year: 1991, Page(s):473 - 509
    Cited by:  Papers (171)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3736 KB)

    Intelligence is defined as that which produces successful behavior. Intelligence is assumed to result from natural selection. A model is proposed that integrates knowledge from research in both natural and artificial systems. The model consists of a hierarchical system architecture wherein: (1) control bandwidth decreases about an order of magnitude at each higher level, (2) perceptual resolution ... View full abstract»

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  • A decision support system for the design of a large electronics test facility

    Publication Year: 1991, Page(s):533 - 544
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1028 KB)

    An optimization-based decision support system (DSS) for designing cost-efficient automatic test equipment (ATE) facilities is presented. The DSS combines efficient algorithms from cluster analysis, mixed-integer nonlinear programming, and closed queuing network theory in an iterative fashion to solve this problem. The DSS uses a hierarchical clustering algorithm to define test station configuratio... View full abstract»

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  • Visual detection with search: an empirical model

    Publication Year: 1991, Page(s):596 - 606
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (820 KB)

    A visual detection model, including search, is constructed from empirical data on foveal and off-axis contrast thresholds, fixation times, saccadic sizes, and eye response times. The model includes one parameter to account for scene complexity and human preparedness, and its accounts quantitatively for the effects of clutter on this parameter and on other variables. The resulting algorithm correla... View full abstract»

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  • Resource allocation and performance evaluation in large human-machine organizations

    Publication Year: 1991, Page(s):521 - 532
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    A methodology is presented for mapping the processes comprising a mission onto the capable resources within the organization such that the completion time of the terminal process in the mission is minimized. The authors then build a Petri net simulation directly from the output of the mapping algorithm to perform sensitivity analyses on the solution. This capability enables the analyst to study in... View full abstract»

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  • Character recognition in a sparse distributed memory

    Publication Year: 1991, Page(s):674 - 678
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    P. Kanerva's (1988) sparse distributed memory model is applied to character recognition. The results of recognizing corrupted characters, using a sparse distributed memory with fewer than 10000 locations, is described: 100 corrupted test patterns were generated to recognize 18 template patterns. The performance of the model is evaluated. Insights about the behavior of sparse distributed memories a... View full abstract»

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  • Structure from motion-a critical analysis of methods

    Publication Year: 1991, Page(s):572 - 588
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1476 KB)

    Existing methods for structure from motion are classified and analyzed and mathematical relationships among them are shown. Their behavior on the same synthetic data is evaluated, examining the effect of noise, initial estimates, and the amount of motion. The missing necessary polynomial constraint on the singular values of R.Y. Tsai and T.S. Huang's (1981) essential parameter matrix is shown, and... View full abstract»

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  • A novel model of autoassociative memory and its self-organization

    Publication Year: 1991, Page(s):678 - 683
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    A network is presented which embodies the orthogonal type of association. A remarkable point of the network is that the weights of the connections between neurons can be determined directly from the correlation matrix derived from the prototype patterns, requiring no pseudoinverse calculation. As a result, the connection weights can also be obtained by an unsupervised, local learning procedure bas... View full abstract»

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  • Classification-based reasoning

    Publication Year: 1991, Page(s):644 - 659
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1388 KB)

    A representation formalism for N-ary relations, quantification, and definition of concepts is described. Three types of conditions are associated with the concepts: (1) necessary and sufficient properties, (2) contingent properties, and (3) necessary properties. Also explained is how complex chains of inferences can be accomplished by representing existentially quantified sentences, and c... View full abstract»

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  • Hardware complexity of binary distributed detection systems with isolated local Bayesian detectors

    Publication Year: 1991, Page(s):565 - 571
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    The authors have devised a simple suboptimal decentralized binary detection system where each local detector independently, and the data function center, are minimizing Bayesian risks (not necessarily identical). They compare the hardware volume of a system with identical local risks to that of an optimal centralized system which minimizes the same global risk for several mathematically tractable ... View full abstract»

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  • Algebraic, mathematical programming, and network models of the deterministic job-shop scheduling problem

    Publication Year: 1991, Page(s):693 - 697
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    In the contemporary literature on deterministic machine scheduling, problems are formulated from three different, but equivalent, perspectives. Algebraic models provide a rigorous problem statement in the language of set theory and are typical of the more abstract development of scheduling theory in mathematics and computer science. Mathematical programming models rely on familiar concepts of nonl... View full abstract»

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  • Modeling the behavioral substrates of associate learning and memory: adaptive neural models

    Publication Year: 1991, Page(s):510 - 520
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB)

    Three adaptive single-neuron models based on neural analogies of behavior modification episodes are proposed, which attempt to bridge the gap between psychology and neurophysiology. The proposed models capture the predictive nature of Pavlovian conditioning, which is essential to the theory of adaptive/learning systems. The models learn to anticipate the occurrence of a conditioned response before... View full abstract»

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  • c-means clustering with the ll and l norms

    Publication Year: 1991, Page(s):545 - 554
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    An extension of the hard and fuzzy c-means (HCM/FCM) clustering algorithms is described. Specifically, these models are extended to admit the case where the (dis)similarity measure on pairs of numerical vectors includes two members of the Minkowski or p-norm family, viz., the p=1 and p=∞ norms. In the absence of theoretically necessary conditions to guide ... View full abstract»

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  • A knowledge exchange architecture for collaborative human-computer communication

    Publication Year: 1991, Page(s):555 - 564
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1056 KB)

    Based on accepted reference models of human and computer communication, a combined human-computer communication architecture is developed for exchanging knowledge. The architecture explicitly recognizes and prescribes a set of syntactic and semantic content functions needed to exchange knowledge for the achievement of collaborative problem solving. The functional components of this architecture ar... View full abstract»

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  • Performance evaluation of a six-axis generalized force-reflecting teleoperator

    Publication Year: 1991, Page(s):620 - 633
    Cited by:  Papers (91)  |  Patents (160)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1364 KB)

    Recent work in real-time distributed computation and control has culminated in a prototype force-reflecting telemanipulation system having dissimilar master (cable-driven force-reflecting hand controller) and slave (PUMA 560 robot with custom controller), extremely high sampling rate (1000 Hz), and low loop computation delay (5 ms). In a series of experiments with this system and five trained test... View full abstract»

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  • Adaptive performance optimization of loosely coupled processors

    Publication Year: 1991, Page(s):607 - 619
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    Routing stationary Poisson arrivals at a common scheduler probabilistically to N heterogeneous processors with exponential service distributions is considered. The objective is to minimize the overall average response time. Based on the solution to the known parameter problem, an adaptive estimator is proposed for the scheduler to learn the optimal routing probabilities when the system pa... View full abstract»

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