//Methods
/// <summary>
/// Checks consistency
/// </summary>
protected override void Check()
{
if (!IsAllowedActivation(OutputActivationCfg, out _))
{
throw new ArgumentException($"Specified OutputActivationCfg can't be used in FF network. Activation function has to be stateless and has to support derivative calculation.", "OutputActivationCfg");
}
if (TrainerCfg == null)
{
throw new ArgumentNullException("TrainerCfg", "TrainerCfg can not be null.");
}
Type trainerType = TrainerCfg.GetType();
if (trainerType != typeof(QRDRegrTrainerSettings) &&
trainerType != typeof(RidgeRegrTrainerSettings) &&
trainerType != typeof(ElasticRegrTrainerSettings) &&
trainerType != typeof(RPropTrainerSettings)
)
{
throw new ArgumentException($"Unsupported TrainerCfg {trainerType.Name}.", "TrainerCfg");
}
if ((HiddenLayersCfg.HiddenLayerCfgCollection.Count > 0 || OutputActivationCfg.GetType() != typeof(IdentitySettings)) &&
trainerType != typeof(RPropTrainerSettings)
)
{
throw new ArgumentException($"Improper type of trainer {trainerType.Name}. For FF having other than Identity output activation or containing hidden layers can be used only Resilient back propagation trainer.", "TrainerCfg");
}
return;
}
/// <summary>
/// Generates xml element containing the settings.
/// </summary>
/// <param name="rootElemName">Name to be used as a name of the root element.</param>
/// <param name="suppressDefaults">Specifies whether to ommit optional nodes having set default values</param>
/// <returns>XElement containing the settings</returns>
public override XElement GetXml(string rootElemName, bool suppressDefaults)
{
XElement rootElem = new XElement(rootElemName);
rootElem.Add(OutputActivationCfg.GetXml(suppressDefaults));
if (!HiddenLayersCfg.ContainsOnlyDefaults)
{
rootElem.Add(HiddenLayersCfg.GetXml(suppressDefaults));
}
rootElem.Add(TrainerCfg.GetXml(suppressDefaults));
Validate(rootElem, XsdTypeName);
return(rootElem);
}
