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IEEE Transactions on Systems Science and Cybernetics

Issue 3 • July 1969

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  • [Table of contents]

    Publication Year: 1969, Page(s): c1
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  • IEEE Systems Science and Cybernetics Group

    Publication Year: 1969, Page(s): c2
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  • Some New Approaches to Machine Learning

    Publication Year: 1969, Page(s):173 - 182
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2741 KB)

    Five different but interrelated models of learning have been established within a complex computer program. These models incorporate mechanisms that optimize response patterns on algorithmic and heuristic bases; make abstractions at different levels; produce value judgements; recognize, modify, store, and retrieve geometrical patterns; and exhibit, in general, many aspects of intelligent behavior.... View full abstract»

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  • Additional Features of an Adaptive, Multicategory Pattern Classification System

    Publication Year: 1969, Page(s):183 - 191
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1839 KB)

    Some additional features of an adaptive, multicategory pattern classification system are presented. No a priori knowledge of the class probability densities or a priori probabilities of occurrence of the categories is required. The system utilizes a set of functions selected by the user to form discriminant functions. Adaptation of the system is accomplished using a set of independent pattern samp... View full abstract»

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  • Constraint Theory, Part III: Inequality and Discrete Relations

    Publication Year: 1969, Page(s):191 - 199
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1973 KB)

    Parts I and II of this three-part paper provided the fundamental concepts underlying constraint theory whose goal is the systematic determination of whether a mathematical model and its computations are well posed. In addition to deriving results for the general relation, special relations defined as universal and regular were treated. This concluding part treats two more special relations: inequa... View full abstract»

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  • Development of a Community Health Service System Simulation Model

    Publication Year: 1969, Page(s):199 - 207
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2216 KB)

    The feasibility of using simulation techniques in community health planning by investigating problems associated with the development of a community health service system simulation model is examined. Two preliminary tasks were completed: a general systems analysis of the community health services and the preparation of a simulation model of one segment of this system. The system is described in t... View full abstract»

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  • Stochastic Allocation and System Analysis

    Publication Year: 1969, Page(s):207 - 214
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1763 KB)

    The optimum allocation of a fixed stock of unreliable units to a random number of demands is discussed. The demands occur at Poisson times; several types of criteria are described, but the most important optimum presented is of the probability that at least one allotted unit does not fail at every Poisson demand. Hence this concerns how unreliable elements can best be used to create a reliable sys... View full abstract»

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  • A Formulation of Fuzzy Automata and Its Application as a Model of Learning Systems

    Publication Year: 1969, Page(s):215 - 223
    Cited by:  Papers (115)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1592 KB)

    Based on the concept of fuzzy sets defined by Zadeh, a class of fuzzy automata is formulated similar to Mealy's formulation of finite automata. A fuzzy automaton behaves in a deterministic fashion. However, it has many properties similar to that of stochastic automata. Its application as a model of learning systems is discussed. A nonsupervised learning scheme in automatic control and pattern reco... View full abstract»

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  • The Systems Approach to Test Evaluation

    Publication Year: 1969, Page(s):223 - 230
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2165 KB)

    The evolution of large and sophisticated systems has created a requirement for extensive system tests programs. The argument that the change in scale of testing affects organizational communications so as to decrease the visibility provided by traditional management tools is presented. To attack this problem, a recommendation is made to establish a central test evaluation group with the primary go... View full abstract»

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  • Electrochemically Active Field-Trainable Pattern Recognition Systems

    Publication Year: 1969, Page(s):230 - 237
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5538 KB)

    System performance tests have recently been carried out on an experimental electrochemically active/plastic system designed to demonstrate and begin to explore the theoretically predicted phenomenon we call temporally associative "field-trainability," a process which, when perfected and extended, may lead to revolutionary advances in manufacturing ultrahigh-density and highly versatile pattern rec... View full abstract»

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  • Stochastic Learning of Time-Varying Parameters in Random Environment

    Publication Year: 1969, Page(s):237 - 246
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2067 KB)

    The problem of learning in nonstationary environment is formulated as that of estimating time-varying parameters of a probability distribution which characterizes the process under study. Dynamic stochastic approximation algorithms are proposed to estimate the unknown time-varying parameters in a recursive fashion. Both supervised and nonsupervised learning schemes are discussed and their converge... View full abstract»

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  • Recursive Estimates of Probability Densities

    Publication Year: 1969, Page(s):246 - 247
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (427 KB)

    First Page of the Article
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  • An Evolutionary Pattern Recognition Network

    Publication Year: 1969, Page(s):247 - 250
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (817 KB)

    A pattern recognition network with two types of adaptation has been investigated. The network output is a weighted sum of the outputs of elements which compute real functions of the discrete network inputs. The first type of adaptation involves the adjustment of the weights while the second type involves the periodic replacement of the least valuable network elements with new ones. The expected er... View full abstract»

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  • Every norm is not logarithmically convex

    Publication Year: 1969, Page(s):250 - 251
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (531 KB)

    This correspondence relates to the remark in a recent paper by D.G. Luenberger [ibid., vol. SSC-4, pp. 182-188, July 1968] that any norm defined on a vector space is a real convex function. Although this is a well-known fact in mathematics, a less well-known fact is that every logarithmically convex function is positive and convex, but not conversely, i.e., there are positive convex functions whic... View full abstract»

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  • Application of Optimal Control Theory to the Crashworthiness of a Passenger Vehicle Model

    Publication Year: 1969, Page(s):251 - 256
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1343 KB)

    Optimal control theory concepts are thought to be useful in understanding the problem of determining safe deceleration characteristics for a crashing vehicle. These deceleration waveforms are to be computed such that passenger belt forces are minimized. Using both a linear one-degree-of-freedom model and a nonlinear two-degree-of-freedom model for a frontal collision, this problem is shown to be e... View full abstract»

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  • Strategy and a Tactic for Generation of Transportation Alternatives

    Publication Year: 1969, Page(s):257 - 260
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1146 KB)

    Transportation planning strategy is discussed in its relationship to overall regional development policy in the Northeast Corridor. A tactic currently being applied in the Northeast Corridor Transportation Project to generate alternative transportation system descriptions is presented. View full abstract»

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  • Correction to "On the Inverse of Linear Dynamical Systems"

    Publication Year: 1969, Page(s): 260
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  • Book Reviews

    Publication Year: 1969, Page(s):260 - 262
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  • Contributors

    Publication Year: 1969, Page(s):263 - 264
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  • Information for authors

    Publication Year: 1969, Page(s): 264b
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