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Found 6278 publications

Fuzzy signature and cognitive modelling for complex decision model

Tamás D. Gedeon László T. Kóczy Kok Wai Wong

Publication Name: Advances in Soft Computing

Publication Date: 2007-12-01

Volume: 42

Issue: Unknown

Page Range: 380-389

Description:

As data is getting more complex and complicated, it is increasingly difficult to construct an effective complex decision model. Two very obvious examples where such a need emerges are in the economic and the medical fields. This paper presents the fuzzy signature and cognitive modeling approach which could improve such decision models. Fuzzy signatures are introduced to handle complex structured data and problems with interdependent features. A fuzzy signature can also be used in cases where data is missing. The proposed fuzzy signature structure will be used in problems that fall into this category. This paper also investigates a novel cognitive model to extend the usage of fuzzy signatures. This Fuzzy Cognitive Signature Modelling will enhance the usability of fuzzy theory in modelling complex systems as well as facilitating complex decision making process based on ill structured information or data. © 2007 Springer-Verlag Berlin Heidelberg.

Open Access: Yes

DOI: 10.1007/978-3-540-72434-6_38

FORthSIGHT: An aid for visually impaired people

No authors available

Publication Name: 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2007

Publication Date: 2007-12-01

Volume:

Issue:

Page Range: 647-655

Description:

simple and smart text-enlarger application for MS windows operational systems.

Open Access: No

DOI: DOI not available

Numerical method for computer generated hologram

Lotfi Abdelhakim

Publication Name: Aip Conference Proceedings

Publication Date: 2007-10-23

Volume: 936

Issue: Unknown

Page Range: 351-355

Description:

The main purpose of this article is to develop a program package which generates artificial holograms by numerical methods and these computer generated holograms are numerically reconstructed. For the calculation of light propagation needed in the generation of holograms or in the reconstruction of the object from the hologram, we use two strategies, the first is the Fourier-based algorithm and the second uses finite difference discretization, and numerical tests that assess the accuracy of these algorithms are presented. © 2007 American Institute of Physics.

Open Access: Yes

DOI: 10.1063/1.2790149

Fuzzy models and interpolation

János Botzheim Tamás D. Gedeon László T. Kóczy

Publication Name: Studies in Fuzziness and Soft Computing

Publication Date: 2007-10-08

Volume: 217

Issue: Unknown

Page Range: 111-131

Description:

This paper focuses on two essential topics of the fuzzy area. The first is the reduction of fuzzy rule bases. The classical inference methods of fuzzy systems deal with dense rule bases where the universe of discourse is fully covered. By applying sparse or hierarchical rule bases the computational complexity can be decreased. The second subject of the paper is the introduction of some fuzzy rule base identification techniques. In some cases the fuzzy rule base might be given by a human expert, but usually there are only numerical patterns available and an automatic method has to be applied to determine the fuzzy rules. © 2007 Springer-Verlag Berlin Heidelberg.

Open Access: Yes

DOI: 10.1007/978-3-540-73182-5_6

Energy absorption modelling technique for car body deformation

István Harmati András Rövid Peter Varlaki

Publication Name: Saci 2007 4th International Symposium on Applied Computational Intelligence and Informatics Proceedings

Publication Date: 2007-10-01

Volume: Unknown

Issue: Unknown

Page Range: 269-272

Description:

The main object of this paper is to introduce a model for describing how the enrgy distribution changes during deformational processes, esp. in car crashes. This an important and difficult task in accident analysis and in safety car-body design. Exact estimation or measuring of the absorbed energy by the deformation is almost impossible. The classical tool for this task is usually a differental equation based finite element method, which requires exact knowledge about the parameters and takes a lot of computational time with high complexity. In the following we introduce a simple numerical model for the changing of the energy distribution during the whole deformational process. © 2007 IEEE.

Open Access: Yes

DOI: 10.1109/SACI.2007.375523

Fuzzy extension for Kano's model using bacterial evolutionary algorithm

János Botzheim Peter Foldesi László T. Kóczy

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-09-25

Volume: Unknown

Issue: Unknown

Page Range: 147-151

Description:

For designing and developing products/services it is vital to know the relevancy of the performance generated by each technical attribute and how they can increase customer satisfaction. Improving the parameters of technical attributes requires financial resources, and the budgets are generally limited. Thus the optimum target is to achieve maximum customer satisfaction within given financial limits. Kano's quality model classifies the relationships between customer satisfaction and attribute-level performance and indicates that some of the attributes have a nonlinear relationship to satisfaction, rather power-function should be used. For the customers' subjective evaluation these relationships are not deterministic and are uncertain. This paper proposes a method for fuzzy extension of Kano's model and presents numerical examples that can prove the efficiency of bacterial evolutionary algorithm in as well. © 2007 IEEE.

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367379

Analysis of RFId application through an automotive supplier's production processes

Petra Döbrössy Dorottya Mánik Lajos Tóth

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-09-25

Volume: Unknown

Issue: Unknown

Page Range: 177-181

Description:

The Department of Logistics and Forwarding at Széchenyi István University in Gyor, Hungary started a project in an automotive industry supplier company. The purpose of the project is to grow the efficiency of the production process. In order to achieve the target we should reorganized the IT system. During the research we had to take the special production circumstances and the already exist ad hock hformation system into consideration. The article adumbrates the course of the project shortly, the faults of the system, the own-developed new information system and represents how the human failures could be eliminated though RFId application. © 2007 IEEE.

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367385

Context dependent reconstructive communication

Tamás D. Gedeon László T. Kóczy

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-09-25

Volume: Unknown

Issue: Unknown

Page Range: 13-19

Description:

No description provided

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367354

Heat treatment parameters effecting the fractal dimensions of AuGe metallization on GaAs

Csaba Dominkovics János Pipek László Dobos Gábor Harsányi Imre Mojzes Szilvia Nagy

Publication Name: Applied Physics Letters

Publication Date: 2007-08-24

Volume: 91

Issue: 7

Page Range: Unknown

Description:

Correlation was detected between the thermal treatment parameters of the AuGe-GaAs system and surface fractal structure. Structural entropic calculations were used to confirm the results obtained by fractal calculations. © 2007 American Institute of Physics.

Open Access: Yes

DOI: 10.1063/1.2768911