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- László Gál, János Botzheim, L . T . Kóczy
- 2008 IEEE International Conference on…
- 2008

In this paper we discuss new methods to improve the bacterial memetic algorithm (BMA) used for fuzzy rule base extraction. The first two methods are knot order violation handling methods which improves the performance of the BMA rather in the case of more complex fuzzy rule base. The third method is a new modification of the BMA in which the order of the… (More)

- Carlos M. P. Cabrita, János Botzheim, A.E. Ruano, L . T . Kóczy
- 2004 IEEE International Joint Conference on…
- 2004

The design phase of B-spline neural networks represents a very high computational task. For this purpose, heuristics have been developed, but have been shown to be dependent on the initial conditions employed. In This work a new technique, bacterial programming, is proposed, whose principles are based on the replication of the microbial evolution… (More)

In the field of control systems it is common to use techniques based on model adaptation to carry out control for plants for which mathematical analysis may be intricate. Increasing interest in biologically inspired learning algorithms for control techniques such as Artificial Neural Networks and Fuzzy Systems is in progress. In this line, this paper gives… (More)

- Peter Foldesi, L . T . Kóczy, János Botzheim
- 2007 International Symposium on Computational…
- 2007

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… (More)

- Peter Foldesi, L . T . Kóczy, János Botzheim
- 2008 International Conference on Intelligent…
- 2008

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… (More)

- Carlos M. P. Cabrita, János Botzheim, T.D. Gedeon, A.E. Ruano, L . T . Kóczy, cio Fonseca
- 2006 World Automation Congress
- 2006

In our previous works model identification methods were discussed. The bacterial evolutionary algorithm for extracting a fuzzy rule base from a training set was presented. The Levenberg-Marquardt method was also proposed for determining membership functions in fuzzy systems. The combination of evolutionary and gradient-based learning techniques -the… (More)

- László Gál, János Botzheim, L . T . Kóczy, A.E. Ruano
- 2008 6th International Symposium on Applied…
- 2008

In this paper we introduce new methods for handling knot order violation occurred in the bacterial memetic algorithm (BMA) used for fuzzy rule base extraction. These methods perform slightly better than the method used before and are easier to integrate with the bacterial memetic algorithm.

- L . T . Kóczy, János Botzheim
- IEEE 3rd International Conference on…
- 2005

This paper gives a brief overview of fuzzy model identification techniques. The paper discusses how the membership functions of a fuzzy system can be extracted from an input/output data (pattern) set without human interference. There are several methods used for rule extraction known from the literature. The bacterial algorithm is an evolutionary technique… (More)

- János Botzheim, Peter Foldesi
- 2009 4th International Symposium on Computational…
- 2009

The aim of the Traveling Salesman Problem (TSP) is to find the cheapest way of visiting all elements in a given set of cities and returning to the starting point. In solutions presented in the literature costs of travel between nodes (cities) are based on Euclidean distances, the problem is symmetric and the costs are constant. In this paper a novel… (More)

This paper presents a method of using the so-called „bacterial algorithm” [4, 5] for extracting the fuzzy rule base from a training set. The class of membership functions is restricted to trapezoidal, as it is general enough and widely used. The pseudobacterial genetic algorithm (PBGA) is show. The PBGA optimises the trapezoidal membership functions in the… (More)