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This paper presents the way of implementation of fuzzy set operators at the transistor level. We propose a novel realization of basic fuzzy logic (FL) functions, such as bounded sum, bounded difference, bounded product, bounded complement, fuzzy logic union (MAX) and fuzzy logic intersection (MIN). The proposed structures of the operators may be easily connected in chains, creating larger FL systems.
In this paper, we present a concept of a transistor level implementation of the Particle Swarm Optimization (PSO) algorithm that belongs to the group of unsupervised learning algorithms aimed at the design of artificial neural networks (ANNs). The algorithm exhibits an ability to search for an optimal solution in a multidimensional data space, in which many sub-optimal solutions may exist. The ANN...
The paper presents a simple current-mode conscience mechanism used in hardware implemented Winner Takes All neural networks to eliminate the problem of the, so called, dead neurons. These neurons reduce the number of data classes that can be distinguished by the NN, i.e. they decrease the efficiency of the NN. The circuit has been realized in the TSMC CMOS 0.18 μm process. At data rate of about 10...
The paper presents a new CMOS implementation of the initialization mechanism for Kohonen self-organizing neural networks. A proper selection of initial values of the weights of the neurons exhibits a significant impact on the quality of the learning process. A straightforward realization of the initialization block in software is simple, but in hardware it requires providing the programming signal...
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