This paper presents an improving knowledge base and inference engine of a medical expert system for diagnosing depressive disorders. calls PORUL.DEP. PORUL.DEP’s includes more than 850 positive rules. PORUL.DEP has been tested on 260 records depressed patients. gives correct diagnosis 95% with light disorder without disorder, but the remaining disorders are not accurate. Average percent 24 %. A...

A new algorithm for power system disturbance classification is proposed in this paper. It is a two-stage system that employs the great potentials of the discrete wavelet transform (DWT), Kalman filter and a fuzzy-expert system. For the first stage, the captured voltage waveform is passed through the DWT to determine the noise inside it. The covariance of this noise is then calculated and fed to...

Fuzzy System (FS) and Artificial Neural Networks (ANN) are complementary methods. But while ANN can learn from data FS cannot. Also, Genetic Algorithms (GA) are complementary to FS. While the FS are easy to understand, the GA are not, although they have the ability to learn, and so on. Many researches have been devoted to its fusion. Our purpose is to give a survey of these questions. 2000 Math...