//Constructor
/// <summary>
/// Creates an initialized instance
/// </summary>
/// <param name="spikeCodeCfg">Spike code configuration</param>
public SpikeCode(SpikeCodeSettings spikeCodeCfg)
{
_spikeCodeCfg = (SpikeCodeSettings)spikeCodeCfg.DeepClone();
//Binary precision
_precisionPiece = 1d / Math.Pow(2d, _spikeCodeCfg.ComponentHalfCodeLength);
_maxPrecisionBitMask = (uint)Math.Round(Math.Pow(2d, _spikeCodeCfg.ComponentHalfCodeLength) - 1d);
//Sensitivity thresholds
double exponent = _spikeCodeCfg.ComponentHalfCodeLength > 1 ? Math.Pow(1d / _spikeCodeCfg.LowestThreshold, 1d / (_spikeCodeCfg.ComponentHalfCodeLength - 1d)) : 0d;
_thresholdCollection = new double[_spikeCodeCfg.ComponentHalfCodeLength];
double threshold = 1d;
for (int i = 0; i < _thresholdCollection.Length - 1; i++)
{
threshold /= exponent;
_thresholdCollection[i] = threshold;
}
_thresholdCollection[_thresholdCollection.Length - 1] = 0;
//Sub-code buffers allocation
_subCodes = new byte[_spikeCodeCfg.NumOfComponents * 2][];
for (int i = 0; i < _subCodes.Length; i++)
{
_subCodes[i] = new byte[_spikeCodeCfg.ComponentHalfCodeLength];
}
//Resulting spike-code buffer allocation
Code = new byte[_subCodes.Length * _spikeCodeCfg.ComponentHalfCodeLength];
Reset();
return;
}
//Constructors
/// <summary>
/// Creates an initialized instance
/// </summary>
/// <param name="name">Generated field name</param>
/// <param name="generatorCfg">Configuration of associated generator</param>
/// <param name="featureFilterCfg">Configuration of real feature filter</param>
/// <param name="spikingCodingCfg">Configuration of spiking coding neurons</param>
/// <param name="routeToReadout">Specifies whether to route generated field to readout layer together with other predictors</param>
public GeneratedFieldSettings(string name,
RCNetBaseSettings generatorCfg,
bool routeToReadout = DefaultRouteToReadout,
RealFeatureFilterSettings featureFilterCfg = null,
SpikeCodeSettings spikingCodingCfg = null
)
{
Name = name;
GeneratorCfg = generatorCfg.DeepClone();
RouteToReadout = routeToReadout;
FeatureFilterCfg = featureFilterCfg == null ? null : (RealFeatureFilterSettings)featureFilterCfg.DeepClone();
SpikingCodingCfg = spikingCodingCfg == null ? null : (SpikeCodeSettings)spikingCodingCfg.DeepClone();
Check();
return;
}
//Constructors
/// <summary>
/// Creates an unitialized instance
/// </summary>
/// <param name="name">Input field name</param>
/// <param name="featureFilterCfg">Configuration of feature filter associated with the input field</param>
/// <param name="routeToReadout">Specifies whether to route input field to readout layer together with other predictors</param>
/// <param name="spikeCodeCfg">Configuration of spike code</param>
public ExternalFieldSettings(string name,
IFeatureFilterSettings featureFilterCfg,
bool routeToReadout = DefaultRouteToReadout,
SpikeCodeSettings spikeCodeCfg = null
)
{
Name = name;
FeatureFilterCfg = (IFeatureFilterSettings)featureFilterCfg.DeepClone();
RouteToReadout = routeToReadout;
SpikeCodeCfg = (SpikeCodeSettings)spikeCodeCfg?.DeepClone();
if (featureFilterCfg.Type == FeatureFilterBase.FeatureType.Real && spikeCodeCfg == null)
{
SpikeCodeCfg = new SpikeCodeSettings();
}
Check();
return;
}
