private static Function ConvolutionWithActivation(Variable features, DeviceDescriptor device,
ConvolutionConfigurationModel configuration)
{
var convFunction = Convolution(features, device, configuration);
var convWithActivationFunction =
BuilderHelper.GetActivationFunction(configuration.ActivationFunction, convFunction);
return(convWithActivationFunction);
}
private static Function Convolution(Variable features, DeviceDescriptor device,
ConvolutionConfigurationModel configuration)
{
// parameter initialization hyper parameter
const double convWScale = 0.26;
var convParams = new Parameter(new[]
{
configuration.KernelHeight, configuration.KernelWidth,
configuration.InputChannelsCount, configuration.OutFeatureMapCount
},
DataType.Float,
CNTKLib.GlorotUniformInitializer(convWScale, -1, 2), device);
var strides = new[] { 1, 1, configuration.InputChannelsCount };
var convFunction = CNTKLib.Convolution(convParams, features, strides);
return(convFunction);
}
