if (ffcc instanceof AparapiConv2DSigmoid) {
result = new BackPropagationConv2DSigmoid(p);
} else if (ffcc instanceof AparapiConv2DTanh) {
result = new BackPropagationConv2DTanh(p);
} else if (ffcc instanceof AparapiConv2DSoftReLU) {
result = new BackPropagationConv2DSoftReLU(p);
} else if (ffcc instanceof AparapiConv2DReLU) {
result = new BackPropagationConv2DReLU(p);
}
} else {
result = new BackPropagationConv2D(p);