Szukana fraza: [Abstract = "Extensions of biradial functions, offering a good tradeoff between the complexity of transfer functions and flexibility of the densities they are able to represent, are proposed. Biradial functions can be used as transfer functions in many types of neural networks, such as RBF, RAN, FSM and IncNet. Using such functions and going into the hard limit \(steep slopes\) facilitates logical interpretation of the network performance, i.e. extraction of logical rules from the training data."]