Proceedings of 3rd International Symposium on Uncertainty Modeling and Analysis and Annual Conference of the North American Fuzzy Information Processing Society

17-20 Sept. 1995

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  • Proceedings of 3rd International Symposium on Uncertainty Modeling and Analysis and Annual Conference of the North American Fuzzy Information Processing Society

    Publication Year: 1995
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    Freely Available from IEEE
  • An evaluation the uncertainty of textual data with logic and statistics

    Publication Year: 1995, Page(s):739 - 744
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (473 KB)

    We describe the problem of conjunctions of coordinations in the French language. The paper treats textual data. Most document retrieval for user queries can be specified in the form of Boolean expressions. There is uncertainty and flaws in combining queries. Many of the ambiguities in text are due to the use of classical methods of computing. The idea of the work is to extract the "reach" of the c... View full abstract»

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  • Fuzzy system representation of car-following phenomena

    Publication Year: 1995, Page(s):798 - 799
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (93 KB)

    Summary form only given. Understanding the way vehicles interact with one another within a traffic stream is an important topic in transportation engineering. The specific situation being studied is when a driver is following another vehicle because his/her speed is constrained by the vehicle ahead, or roadway or traffic conditions that do not allow passing. This is termed a car-following situatio... View full abstract»

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  • Author index

    Publication Year: 1995
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    Freely Available from IEEE
  • Fuzzy scheduling in compilers optimizations

    Publication Year: 1995, Page(s):543 - 548
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Cache memories are essential components in all existing commercial microprocessors. In order to attain best performance, cache memories have to be managed either with hardware support or compiler support. The compiler approach makes use of specialized cache memory management instructions to generate an optimal management. This is done by generating an optimal scheduling of these specialized instru... View full abstract»

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  • Learning from data by coherent probabilistic reasoning

    Publication Year: 1995, Page(s):535 - 540
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    We apply the theory of (de Finetti) coherent inference to the handling of uncertainty in the process of automatic medical diagnosis. Given some possible diseases (which could explain an initial piece of information) and a tentative probability assessment of them, the database consists of conditional probabilities P(E|K), where each K is a disease and each evidence E comes from a suitable test. The... View full abstract»

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  • Guard heuristic by dynamic fuzzy reasoning model for Chinese chess

    Publication Year: 1995, Page(s):530 - 533
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The paper provides a novel Chinese chess model which is based on a fuzzy cognitive map (FCM) and rule-based system for reasoning a best legal move. A 10×9 guard matrix is generated by FCM to show the status of each intersection. Each entry in the matrix is called a guard value which indicates how an intersection is guarded by the player's side or attacked by the opponent's. Based on the prop... View full abstract»

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  • Ordering fuzzy sets generated by a neural network algorithm

    Publication Year: 1995, Page(s):800 - 805
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Ordering fuzzy subsets is an important event in dealing with fuzzy decision problems in many areas. This issue has been of concern for many researchers over the years. Also, in the last several years, there has been a large and energetic upswing in neuroengineering research aimed at synthesizing fuzzy logic with computational neural networks. The two technologies often complement each other: neura... View full abstract»

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  • Generation of polyline reference sets on quantized supports

    Publication Year: 1995, Page(s):489 - 494
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    A key step in fuzzy relational modeling is the generation of appropriate reference sets. The membership functions used to define these reference sets are often based on heuristics. However, more attention must be paid to how these reference sets are created if the actual statistical characteristics of the system signals are to be reflected in the shape of the membership functions. A new algorithm ... View full abstract»

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  • Design of a digital fuzzifier based on successive approximation

    Publication Year: 1995, Page(s):524 - 529
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    In this paper, we present a design of a digital dynamic fuzzifier based on successive approximation. It is suitable for on-line training or on-line adaptive fuzzy control systems. With the parameters of the triangle or trapezoid membership functions and the number to be fuzzified as the inputs, it automatically calculated the proper membership values for the fuzzy control systems. The chip is desi... View full abstract»

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  • A grey fuzzy multiobjective programming approach for the optimal planning of municipal solid waste management systems

    Publication Year: 1995, Page(s):424 - 429
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The paper proposes a new approach-a grey fuzzy multiobjective mixed integer programming (GFMOMIP) model-for the evaluation of sustainable management strategies of solid waste management in a metropolitan region. In particular, it demonstrates how uncertain messages can be quantified by specific membership functions and combined through the use of grey numbers in a multiobjective solid waste manage... View full abstract»

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  • Dynamic rough sets

    Publication Year: 1995, Page(s):292 - 295
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    Describes how fuzzy rough sets can be used as the underlying model for a semantics which describes uncertainty. This representation prevents the explosion in complexity normally associated with uncertainty. The approximation is suitable for establishing safety properties of dynamic systems which Monte Carlo techniques cannot. This paper examines the underlying mathematics and describes some of the... View full abstract»

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  • Fuzziness in classical two-valued logic

    Publication Year: 1995, Page(s):483 - 488
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Classical two-valued logic has been thought to be inadequate as a logic of fuzzy predicates, because the interpretation of a predicate in classical two-valued logic is just a set of objects, and a set is a precise mathematical entity with nothing fuzzy about it. The aim of this paper is to show that fuzziness may, after all, be successfully modelled in classical two-valued logic via (i) the introd... View full abstract»

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  • Fuzzy logic, grasp preshaping for robot hands

    Publication Year: 1995, Page(s):520 - 523
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Selection of an appropriate hand shape and orientation for grasp preshaping depends on the geometry and physical properties of the target object, along with information on the goal of the task. Features of the target object and the task are mapped onto various grasp attributes. Preshaping of the robot hand is done according to the results of this mapping. A fuzzy logic grasp preshaping methodology... View full abstract»

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  • Ordering fuzzy numbers with application to fuzzy linear programming

    Publication Year: 1995, Page(s):420 - 423
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    We present an approach for ordering fuzzy numbers, then we utilize it to suggest two models for solving the fuzzy linear programming (FLP) problem. In this research we present a new approach for ordering two fuzzy numbers and show some practical advantages of it over other methods. We also utilize the suggested approach to introduce two techniques to solve the FLP problem. In the first technique, ... View full abstract»

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  • An interval fuzzy truth-value approach to the generalized modus ponens

    Publication Year: 1995, Page(s):792 - 797
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    One of the desirable properties of generalized modus ponens in fuzzy logic is: if X is A→Y is B, and X is not A, then Y is unknown. From a truth-value viewpoint, “unknown” can be represented as the interval [0,1]. However most existing fuzzy reasoning mechanisms use the truth value 1 to represent “unknown”. In this paper, we propose a new approach to fuzzy reasoning ba... View full abstract»

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  • Fuzzy reasoning for decision making in object recognition

    Publication Year: 1995, Page(s):163 - 168
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The area of object recognition has a long history as a subarea of computer vision, with most systems using either probabilistic or heuristic methods for reasoning about the uncertainty inherent in sensed images. The paper highlights recent work in applying fuzzy set theory to the two main processes in object recognition: grouping and matching. Fuzzy sets are a natural model for both grouping and m... View full abstract»

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  • Application of genetic algorithm to bridge construction management

    Publication Year: 1995, Page(s):105 - 108
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Genetic algorithms (GA) have attracted attention in recent years as a method of solving combinatorial optimization problems. This research is an application of these algorithms to the problem of determining the laying sequence for a continuous girder reinforced concrete floor system. If the number of design variables and the number of combinations are large, it is often impossible to obtain a solu... View full abstract»

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  • Toward a fuzzy theory of oligopolistic competition

    Publication Year: 1995, Page(s):286 - 291
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    Demonstrates how fuzzy mathematics can be utilized to achieve a clearer perspective of the long-run equilibrium of oligopolistic firms than is provided by models based strictly on crisp numbers. It accomplishes this objective by computing the fuzzy present value of lost opportunities of entrepreneurs. By linking the optimal fuzzy opportunity to the cost function of the oligopolist, a long-run equi... View full abstract»

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  • Fuzzy reasoning: an alternative to approximate reasoning theory

    Publication Year: 1995, Page(s):478 - 482
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    Applications of fuzzy logic to fuzzy control are very popular. However, for more general fuzzy reasoning problems, there are a number of important ideas that must be addressed. We discuss these topics: (1) The theory of approximate reasoning may be of dubious utility in fuzzy reasoning systems: we present examples of fuzzy rules which cannot be evaluated by approximate reasoning. (2) In fuzzy reas... View full abstract»

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  • The fuzzy median and the fuzzy MAD

    Publication Year: 1995, Page(s):85 - 88
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    An extension of two key robust statistics to fuzzy sets is presented and applied to the fuzzy c-means clustering algorithm. Examples of a robust statistic are the median and the median absolute deviation from the median or MAD, a robust estimate of dispersion. These extensions are derived, and the fuzzy median is applied to the fuzzy c-means clustering algorithm. The modified clustering algorithm ... View full abstract»

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  • Fuzzy interactive multiobjective optimization on borrowing/lending problems

    Publication Year: 1995, Page(s):513 - 518
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    The paper presents an application of fuzzy set theory applied to optimization problems, where there exist multiple goals. We present the fuzzy multiobjective linear programming with fuzzy parameter model for borrowing/lending problem, and the steps followed to convert it to an ordinary nonlinear programming problem, which finally is solved. An example along with its result is presented to illustra... View full abstract»

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  • Rules discovery in fuzzy relational databases

    Publication Year: 1995, Page(s):414 - 419
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    We are concerned with the problem of defining a fuzzy dependency in the framework of a fuzzy relational database. Of prime interest is the development of a fuzzy algebra operator, which allows us to store that information in a separated relation with fewer tuples. Its definition can be carried out through a crisp criterion or through a fuzzy one: we study the necessary restrictions for each case View full abstract»

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  • Reliability assessment of pile-founded navigation structures

    Publication Year: 1995, Page(s):699 - 704
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The US Army Corps of Engineers (USACE) has designed pile-founded navigation structures to provide a consistently high level of safety and serviceability by using allowable values for pile stresses, pile load capacity, and deflections in structure design. Older in-service pile-founded navigation structures can be assessed using the same limit states used in the design of new pile-founded structures... View full abstract»

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  • Determination of economic systems behaviour under uncertainty

    Publication Year: 1995, Page(s):20 - 25
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The paper discuses systems of difference equations with fuzzy parameters and presents some solution procedures with the purpose to study the dynamic behaviour of economic systems in case of uncertainty. The trajectories of the endogenous variables are evaluated firstly at contiguous moments of time, and then, simultaneously. The relations between different solutions are shown. The author also cons... View full abstract»

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