/// <summary>
/// The state.
/// </summary>
/// <param name="chain">
/// The chain.
/// </param>
/// <param name="alphabet">
/// The alphabet.
/// </param>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public override bool State(ComplexChain chain, FrequencyDictionary alphabet)
{
double current = Distortion(chain, alphabet);
if (Value > current)
{
Value = current;
this.chain = chain.Clone();
this.alphabet = alphabet.Clone();
ThresholdToStop.SaveBest();
}
return ThresholdToStop.Distance > ThresholdVariator.Precision;
}
/// <summary>
/// The state.
/// </summary>
/// <param name="chain">
/// The chain.
/// </param>
/// <param name="alphabet">
/// The alphabet.
/// </param>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public override bool State(ComplexChain chain, FrequencyDictionary alphabet)
{
double currentDistortion = depth.Calculate(chain, chain.Anchor); // - calculate(gamutDeep, chain);
if (Math.Abs(currentDistortion) > Value)
{
this.chain = chain.Clone();
this.alphabet = alphabet.Clone();
ThresholdToStop.SaveBest();
Value = currentDistortion;
}
return ThresholdToStop.Distance > ThresholdVariator.Precision;
}
/// <summary>
/// The state.
/// </summary>
/// <param name="chain">
/// The chain.
/// </param>
/// <param name="alphabet">
/// The alphabet.
/// </param>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public override bool State(ComplexChain chain, FrequencyDictionary alphabet)
{
double distortion = Distortion(chain, alphabet);
if (Math.Abs(Value) > Math.Abs(distortion))
{
this.chain = chain.Clone();
this.alphabet = alphabet.Clone();
Value = distortion;
ThresholdToStop.SaveBest();
}
return ThresholdToStop.Distance > ThresholdVariator.Precision;
}
/// <summary>
/// The initialize method.
/// </summary>
/// <param name="chain">
/// The chain.
/// </param>
/// <param name="windowLength">
/// The window length.
/// </param>
/// <param name="step">
/// The step.
/// </param>
private void Initialize(ComplexChain chain, int windowLength, int step)
{
try
{
int chainLength = chain.GetLength();
if ((chainLength < windowLength) || (windowLength == 0) || ((step < 1) || (step > chainLength)))
{
throw new Exception();
}
}
catch (Exception)
{
}
this.chain = chain.Clone();
this.windowLength = windowLength;
this.step = step;
CursorPosition = -step;
CalculateMaxShifts();
}
/// <summary>
/// The update.
/// </summary>
/// <param name="chain">
/// The chain.
/// </param>
/// <param name="alphabet">
/// The alphabet.
/// </param>
private void Update(ComplexChain chain, FrequencyDictionary alphabet)
{
double dist = TheoryVolume(chain, alphabet) - alphabet.Count;
if (Math.Abs(Value) > Math.Abs(dist))
{
this.alphabet = alphabet.Clone();
this.chain = chain.Clone();
Value = dist;
ThresholdToStop.SaveBest();
}
}
