2009 Sixth International Conference on Fuzzy Systems and Knowledge Discovery

14-16 Aug. 2009

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  • [Front cover - Vol 7]

    Publication Year: 2009, Page(s): C1
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  • [Title Page i - Volume 7]

    Publication Year: 2009, Page(s): i
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  • [Title page iii - Volume 7]

    Publication Year: 2009, Page(s): iii
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  • [Copyright notice - Volume 7]

    Publication Year: 2009, Page(s): iv
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  • Table of contents - Volume 7

    Publication Year: 2009, Page(s):v - xiii
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  • Message from the Co-Chairs - Volume 7

    Publication Year: 2009, Page(s): xiv
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  • Organizing Committee - Volume 7

    Publication Year: 2009, Page(s): xv
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  • Program Committee - Volume 7

    Publication Year: 2009, Page(s):xvi - xvii
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  • list-reviewer

    Publication Year: 2009, Page(s):xviii - xix
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  • 2-D Flow Mathematical Model and its Application for the Typical Multi-branched Meandering Reach in Mid-down Yangtze River

    Publication Year: 2009, Page(s):3 - 7
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (443 KB) | HTML iconHTML

    Using the finite volume method, a plane 2-D flow mathematical model under the body-fitted coordinate system is established. Taking Majiazui river reach in the middle of Yangtze River as an example, the computation results show the good agreement with the measuring data of the current velocity, water level. The model can not only be used to simulate flow movement in this complex reach, but also be ... View full abstract»

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  • A Grey Correlation Analysis Method Based on the Interval Deviation Degree

    Publication Year: 2009, Page(s):8 - 12
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (333 KB) | HTML iconHTML

    This paper firstly combines the relevant knowledge of grey correlation analysis and interval deviation degree. Considering the reference sequence and the comparison sequences containing grey numbers, this paper gives a grey correlation analysis method based on the interval deviation degree, and its effectiveness is proved by an example. View full abstract»

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  • A New Similarity Measure between Vague Sets

    Publication Year: 2009, Page(s):13 - 15
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (340 KB) | HTML iconHTML

    Some existing similarity measures between vague sets are analyzed and some counter-intuitive examples for these methods are showed, which may lead to wrong deduction. A new method to calculate the degree of similarity between vague sets is proposed in this paper. With this method, all three parameters describing vague sets are taking into account when calculating similarity. This method improves t... View full abstract»

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  • Algebraic Method of the Theory of Rough Sets over Two Universes

    Publication Year: 2009, Page(s):16 - 20
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    Algebraic method is one of important ways in the study of rough sets theory. One may profoundly understand the algebraic structure of approximation operator through this method research. In this paper, the related concepts with respect to Pawlak approximation space are briefly recalled. Then, the concepts of generalized approximation space and generalized approximation operators are firstly propos... View full abstract»

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  • A Universal Logic Propositional Calculus System Based on 1-level Universal Operation Models

    Publication Year: 2009, Page(s):21 - 25
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (241 KB) | HTML iconHTML

    Universal logic principle has given 1-level universal conjunction operation model, universal disjunction operation model and universal implication operation model. A propositional calculus formal deductive system L<sup>U</sup> <sub>1</sub> based on these 1-level operation models was built up. Moreover, it has been proved that the propositional calculus formal deductive syst... View full abstract»

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  • Approximating Common Fixed Points of Contractive and Nonexpansive Operators in Fuzzy Normed Spaces

    Publication Year: 2009, Page(s):26 - 29
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    In this paper the contractive, nonexpansive and asymptotically quasi-non expansive operators in fuzzy normed spaces are introduced and studied. Some convergence theorems are established for the iterative schemes of type Krasnoselski-Mann, type Kirk and type Ishikawa to approximate a common fixed point of two operators. View full abstract»

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  • Fuzzy Congruence Relations and Fuzzy Order Filters

    Publication Year: 2009, Page(s):30 - 33
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (238 KB) | HTML iconHTML

    In this paper, we introduce the notion of fuzzy congruence relation, fuzzy order filter of the adjoint semigroup M(X) of BCK-algebra X. We discuss some characterizations of fuzzy congruence relations and fuzzy order filters. In the adjoint semigroup of a positive implicative BCK-algebra with condition(S), every fuzzy congruence relation may induce a fuzzy order filter of M(X), and every fuzzy orde... View full abstract»

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  • Fuzzy Dynamic Petri Nets

    Publication Year: 2009, Page(s):34 - 38
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (373 KB) | HTML iconHTML

    Fuzzy dynamic Petri nets model is proposed to process systems with vague information. Different from the traditional fuzzy Petri net systems, we address the Petri nets in the concept of net framework, instead of just a logical prediction system. Formal definition of dynamic Petri nets and its relation matrix description are given. Then, based-on the relation matrix, fuzzy dynamic algorithm is prop... View full abstract»

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  • Improved Fuzzy Mathematics Method to Evaluate Water Quality of Qingdao Dagu River, China

    Publication Year: 2009, Page(s):39 - 42
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (367 KB) | HTML iconHTML

    This paper introduced fuzzy assessment of water quality based on membership grade by artificial neural network. Samples were obtained by intensive interpolation of water quality standards, relative MG matrix was output as expectation value for network's train and application. Then, improved fuzzy mathematics method was applied to assess the water quality of Qingdao Dagu River. View full abstract»

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  • Investigation and Application of Extension Data Mining Based on Rough Set

    Publication Year: 2009, Page(s):43 - 47
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    In the data base of information system, usually there are some attributes which are unimportant to the decision attribute, and some records that disturb the decision making. In this paper, reducing the condition attributes based on the matter-element theory and rough set method, calculating the importance to the decision attribute for each condition attribute after reduction, and data mining the r... View full abstract»

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  • Key Technology Research for the Production Monitoring and Control System of the Coning, Drawing and Twisting Workshop

    Publication Year: 2009, Page(s):48 - 52
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (459 KB) | HTML iconHTML

    To achieve the production information management of the coning, drawing and twisting workshops, and promote a good and fast development of the textile enterprise, a multi-agent production monitoring and control system based on C/S mode is developed, through analyzing the actual requirements of the workshops, where the communication of the single-port-multi-protocol and a multi-thread data collecti... View full abstract»

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  • Near Semicompactness in L-fuzzy Topological Spaces

    Publication Year: 2009, Page(s):53 - 56
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    A new concept of near semicompactness is introduced in L-fuzzy topological spaces, where L is a fuzzy lattice. It is weaker than semicompactness and is stronger than S*-closedness. It is described with collection of semiclosed L-fuzzy subsets and finite p-level semiregular-semiopen cover. It is a good L-extension; it is hereditary for semiregular-semiclosed L-fuzzy subsets and semiclopen L-fuzzy s... View full abstract»

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  • Nonlinear Dynamical Structure of precipitation in China and its Regional Climatic Characters

    Publication Year: 2009, Page(s):57 - 64
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    The statistical data show that weather (precipitation) in the five dynamic climate characteristic regions simultaneously becomes dry, wet and normal, that is to say, each region possesses a common spatial-temporal characteristic structure. Further analysis of physical mechanisms suggests that the Jianghuai pattern and South China pattern are close related with ENSO, which may results from the effe... View full abstract»

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  • On Interval Fuzzy Residuated Implications and Interval Quasi-implications

    Publication Year: 2009, Page(s):65 - 70
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (402 KB) | HTML iconHTML

    A mistake on interval fuzzy residuated implications is pointed out by a counterexample, and a modified theorem is proved. The relationship between interval set t-norm and interval t-norm is investigated. Moreover, the notions of quasi-residuated lattice and interval quasi-implication are introduced, and some basic properties are examined. View full abstract»

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  • Operations on Fuzzy Numbers with Two Fuzziness Sources

    Publication Year: 2009, Page(s):71 - 75
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (395 KB) | HTML iconHTML

    The extension principle for n-ary operations is suitable for operations on different fuzzy numbers, while the unreasonable results will be concluded when it is used for operations on several fuzzy numbers with same fuzziness source. A concept called fuzziness source is proposed. Then, the unit fuzzy number is defined to simplify the operation. The operation rules are respectively constructed for f... View full abstract»

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  • Pyramid Fuzzy Numbers

    Publication Year: 2009, Page(s):76 - 80
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (396 KB) | HTML iconHTML

    In this paper, we introduce the concept of pyramid fuzzy numbers, which may be conveniently used in some practical applications like triangle fuzzy numbers, investigate their properties, and obtain their operations rules of addition and scalar multiplication. And then, on the pyramid fuzzy number space, we define a metric that not only holds the suitability but also convenient for getting an arith... View full abstract»

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