Soft Computing in Intelligent Systems and Information Processing. Proceedings of the 1996 Asian Fuzzy Systems Symposium

11-14 Dec. 1996

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  • Soft Computing in Intelligent Systems and Information Processing. Proceedings of the 1996 Asian Fuzzy Systems Symposium

    Publication Year: 1996
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    Freely Available from IEEE
  • Authors index

    Publication Year: 1996, Page(s):579 - 581
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    Freely Available from IEEE
  • A fuzzy cell-mapping feedback control algorithm for the satellite attitude manoeuvring control

    Publication Year: 1996, Page(s):567 - 572
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    A fuzzy cell-mapping control algorithm, formerly proposed for motor control, is extended to the application of satellite attitude manoeuvring/stabilizing control. The cell-mapping method treats the complex satellite attitude dynamics, and the fuzzy interpretation helps achieve a suitable control effort. The result is a smooth transition for manoeuvring to stabilization without overshoot while main... View full abstract»

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  • Application of fuzzy multisets to fuzzy database systems

    Publication Year: 1996, Page(s):115 - 120
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Basic relations and operations of fuzzy multisets which are also called fuzzy bags are newly introduced and their theoretical properties are described using a grade sequence. Application of fuzzy multisets to fuzzy relational database systems is considered: handling of fuzzy multirelations and extension of a query language are discussed View full abstract»

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  • Extraction of diagnostic knowledge from clinical databases based on rough set theory

    Publication Year: 1996, Page(s):145 - 151
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    A rule-induction system, called PRIMEROSE3 (probabilistic rule induction method based on rough sets version 3.0), is introduced. This program first analyzes the statistical characteristics of attribute-value pairs from training samples, then determines what kind of diagnosing model can be applied to the training samples. Then, it extracts not only classification rules for differential diagnosis, b... View full abstract»

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  • On the fuzzy differential equations

    Publication Year: 1996, Page(s):563 - 566
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (124 KB)

    It is well-known that, in the research on fuzzy differential equations, O. Kaleva's (1987, 1990) work is important. In this paper, we develop his work in two directions: (1) the existence and uniqueness theorem for a solution to the Cauchy problem of fuzzy differential equations; and (2) the existence theorem under a compactness-type condition to the Cauchy problem of fuzzy differential equations View full abstract»

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  • Automatic generation of membership functions for brain MR images

    Publication Year: 1996, Page(s):182 - 187
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    In this paper, we present a rule-based fuzzy segmentation system that is capable of segmenting magnetic resonance (MR) images of diseased human brains into physiologically and pathologically meaningful regions for measurement. We have developed a novel technique to automatically generate the membership functions for the fuzzy sets in the antecedent of the IF-THEN fuzzy rules in our system. Using t... View full abstract»

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  • Multiobjective fuzzy and stochastic engineering optimization with maximizing reliability

    Publication Year: 1996, Page(s):302 - 307
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    This paper introduces a design methodology using fuzzy theory to find random design variables by maximizing the reliability as well as optimizing multiobjectives. The formulation of the problem involves random parameters and probabilistic and fuzzy probabilistic constraints. The objective weighting strategy in the multiobjective fuzzy formulation is presented. An engineering design example illustr... View full abstract»

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  • A method for finding independently distributed probability models that satisfy order constraints

    Publication Year: 1996, Page(s):344 - 349
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    This research investigates a method that attempts to represent a database of expert decisions as an independent probability distribution. To implement this representation, our method searches for a simple probability model that exhibits maximum independence property and preserves a given set of inequality constraints. We show that finding such a representation can be formulated as a search problem... View full abstract»

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  • On reducing information systems by accuracy measures in rough sets

    Publication Year: 1996, Page(s):139 - 144
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    In this paper, we discuss on reducing information systems from some aspects. Assuming that some classes are more important than the other in medical diagnosis, all the classes are divided into two groups by considering importance grades of classes. In reducing attributes, the accuracy measures of the important group should not be reduced, while those of the other group can be slightly reduced. Fur... View full abstract»

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  • Fuzzy processing on GPS data to improve the position accuracy

    Publication Year: 1996, Page(s):557 - 562
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    A new application of fuzzy set theory to the problem of GPS positioning accuracy improvement is presented. We employed fuzzy processing on the C/A code stand-alone receiver and the DGPS receiver. The membership functions for the processing are determined by position dilution of precision (PDOP), signal-to-noise ratio (SNR) and the reliable factor of fixed position. We can select more accurate posi... View full abstract»

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  • A fuzzy mathematical approach for measuring multi-facet consumer involvement

    Publication Year: 1996, Page(s):515 - 520
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    We propose a novel version on the study of consumer involvement. Mathematical definitions for the consumer involvement and the degree of consumer involvement is created to replace the traditional semantic definitions so that a single synthetic index ranged in [0,1] can be manipulated to measure the degree of multi facet consumer involvement, which is objective and obvious View full abstract»

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  • On rough and LT-fuzzy sets

    Publication Year: 1996, Page(s):13 - 17
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    A concept of LT-fuzzy sets was introduced by Rasiowa and Cat Ho (1992). LT-fuzzy sets are a modification of L-fuzzy sets introduced by Goguen (1967). We introduce here a notion of a generalized rough set and show that it can be considered as a particular case of a L-fuzzy set. We also generalize the notion of a rough equality of sets, introduced by Pawlak in 1985 to a notion of topological equalit... View full abstract»

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  • A fuzzy self-tuning controller design

    Publication Year: 1996, Page(s):200 - 205
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    We propose a new design method to overcome the singularity problem in a self-tuning control system when using the pole placement technique. This method uses the fuzzy gradient least squares estimation to identify the coefficients of the plant and guarantee the controllability of the estimated plant model. From the simulation results, it is seen that the proposed method can have satisfactory result... View full abstract»

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  • State dependent fuzzy controls by fuzzy singleton-type reasoning method

    Publication Year: 1996, Page(s):447 - 452
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    This paper proposes a state dependent fuzzy reasoning method which is realized using fuzzy rule weights which vary with input values. The fuzzy singleton-type reasoning method is applied to fuzzy control in which fuzzy control rules are constrained with weights depending on input values, and good control results are obtained View full abstract»

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  • The design of fuzzy Chinese drugs decocting machine

    Publication Year: 1996, Page(s):176 - 181
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Chinese medicine has existed for thousands of year, and it plays an important role in today's medical world. There are many diseases which can be cured much more efficiently with Chinese medicine or combination of Chinese medicine and western medicine than using pure western medicine. However, it takes time to decoct Chinese drugs and, time is money. In modern society, therefore automatic Chinese ... View full abstract»

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  • Fuzzy decision making through relationships analysis between criteria

    Publication Year: 1996, Page(s):296 - 301
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    A criteria trade-off analysis approach, based on relationships analysis for fuzzy decision-making, is proposed. The degrees of conflict and cooperation between any two individual criteria are first formulated. Relationships between individual criteria are identified based upon their conflicting and cooperative degrees. The criteria are converted into a disjunctive normal form to obtain a uniform r... View full abstract»

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  • Generating fuzzy rule-based systems from examples

    Publication Year: 1996, Page(s):37 - 42
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    This paper proposes a general methodology to generate fuzzy rule-based systems automatically from examples. The objective of this work is to generate fuzzy systems with good mapping ability and generalization ability as well. This methodology consists of five steps. Inductive learning is incorporated to enhance fuzzy system's generalization ability. Experiments are conducted to evaluate the system... View full abstract»

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  • Using backup coverage and TOPSIS fuzzy approach to emergency facilities layout in new development planning area

    Publication Year: 1996, Page(s):109 - 114
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    New development planning areas, like new towns and new communities, usually ignore the layout of location for emergency facilities, like police station, hospital and fire station, beforehand. Such remissness is harmful to people's life and property. We adopt the ideal of backup coverage to expand the BACOP1 model to the BACOP1-m model with m+1 objectives in the 0-1 integer programming model to ana... View full abstract»

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  • Fuzzy logic and data mining

    Publication Year: 1996, Page(s):133 - 138
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    There are many activities of both technology and its application in data mining and knowledge discovery in database area. In this paper, actual applications of data mining are presented from its development point of view, and a generalized conceptual model of data mining is proposed. Additionally, to make the data mining process more applicable, important notes at the performing process against re... View full abstract»

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  • Similarity, probability and database organisation

    Publication Year: 1996, Page(s):272 - 277
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    The question of storing imperfect data within a database framework has been discussed in the literature almost since the time when the first formal database structure was proposed. The matter received an additional impetus with the advent of fuzzy sets and its promise of formally capturing the notion of imprecision. If the imperfection is one of uncertainty as to whether a certain data item (or da... View full abstract»

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  • Representations of rough set approximation operators

    Publication Year: 1996, Page(s):7 - 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    This paper examines several equivalent representations of rough set approximation operators in finite universes. Each of them can be either constructed from a binary relation or characterized by certain axioms. Their relationships are examined View full abstract»

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  • A novel method for fuzzy self-tuning PID controllers

    Publication Year: 1996, Page(s):194 - 199
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    In this work, we are concerned with the use of the fuzzy inference mechanism in order to develop a novel on-line fuzzy self-tuning PID control scheme for improving the performance of the traditional PID controller. We first pre-tune a controlled system to determine its first order plus dead time (FOPDT) model and the steady state control signal (us). Then, the reference integral term ca... View full abstract»

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  • A new method for fuzzy pattern classification based on measures of similarity

    Publication Year: 1996, Page(s):18 - 23
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB)

    This paper presents a new method for fuzzy pattern classification. Its main difference from other methods is the introduction of a measure of similarity between the patterns and the point in the n-dimensional space which is to be classified. Furthermore this method is robust against noise corrupted patterns, which is an important aspect in many pattern classification problems View full abstract»

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  • Evaluating a weapon system using catastrophe series based on fuzzy scales

    Publication Year: 1996, Page(s):212 - 217
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    We propose a new algorithm for evaluating a guided missile destroyer by catastrophe series based on fuzzy scales, which is a multiple criteria decision making approach in a fuzzy environment. The descriptions and judgements on weapon systems are usually linguistic and fuzzy. We use the triangular fuzzy number 1˜, 3˜, 5˜, 7˜, and 9˜ to indicate the relative strength of... View full abstract»

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