1. Neural networks with complex activations and connection weights;Szilagyi;Complex Syst.,1994
2. Complex domain backpropagation;Georgiou;IEEE Trans. Circuits Syst. II, Analog Digit. Signal Process.,1992
3. Comparison of the complex valued and real valued neural networks trained with gradient descent and random search algorithms;Zimmermann,2011
4. Complex backpropagation neural network using elementary transcendental activation functions;Kim,2001
5. On Complex Valued Convolutional Neural Networks;Guberman,2016