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In this paper we presented an algorithm which can be applied in biometrical identification, especially wherever the high level of false rejection is significant. As the biometrics spreads, the basic difficulties of the controller algorithms are leading us to invent an appropriate technique, which is able to adapt and enough flexible to deal with the daily fluctuations. These daily changes may derive from the routines of the usage, the environmental impacts or even the natural lesions and changes of the user's individual biological identification patterns. The fuzzy logic as a soft computing method applies the artificial intelligence, which based on human thinking and behavior. The fuzzy logic involves the linguistic variables instead of exact numerical equations, and makes implications just like human logic. To highlight the results of our experiments we compared that with the classical mean value calculations.
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