/// <summary>
/// Parse a matrix from a name-value collection of params.
/// </summary>
///
/// <param name="paras">The name-value pairs.</param>
/// <param name="name">The name to parse.</param>
/// <returns>The parsed matrix value.</returns>
public static Matrix ParseMatrix(IDictionary <String, String> paras,
String name)
{
if (!paras.ContainsKey(name))
{
throw new PersistError("Missing property: " + name);
}
String line = paras[name];
double[] d = NumberList.FromList(CSVFormat.EgFormat, line);
var rows = (int)d[0];
var cols = (int)d[1];
var result = new Matrix(rows, cols);
int index = 2;
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < cols; c++)
{
result[r, c] = d[index++];
}
}
return(result);
}
/// <summary>
/// Read a an object.
/// </summary>
public Object Read(Stream mask0)
{
var result = new HopfieldNetwork();
var ins0 = new EncogReadHelper(mask0);
EncogFileSection section;
while ((section = ins0.ReadNextSection()) != null)
{
if (section.SectionName.Equals("HOPFIELD") &&
section.SubSectionName.Equals("PARAMS"))
{
IDictionary <String, String> paras = section.ParseParams();
EngineArray.PutAll(paras, result.Properties);
}
if (section.SectionName.Equals("HOPFIELD") &&
section.SubSectionName.Equals("NETWORK"))
{
IDictionary <String, String> p = section.ParseParams();
result.Weights = NumberList.FromList(CSVFormat.EgFormat,
(p[PersistConst.Weights]));
result.SetCurrentState(NumberList.FromList(CSVFormat.EgFormat,
(p[PersistConst.Output])));
result.NeuronCount = EncogFileSection.ParseInt(p,
PersistConst.NeuronCount);
}
}
return(result);
}
/// <summary>
/// Parse a double array from a name-value collection of params.
/// </summary>
///
/// <param name="paras">The name-value pairs.</param>
/// <param name="name">The name to parse.</param>
/// <returns>The parsed double array value.</returns>
public double[] ParseDoubleArray(IDictionary <String, String> paras,
String name)
{
String v = null;
try
{
if (!paras.ContainsKey(name))
{
throw new PersistError("Missing property: " + name);
}
v = paras[name];
if (v.StartsWith("##"))
{
int i = int.Parse(v.Substring(2));
return(_largeArrays[i]);
}
else
{
return(NumberList.FromList(CSVFormat.EgFormat, v));
}
}
catch (FormatException)
{
throw new PersistError("Field: " + name + ", "
+ "invalid integer: " + v);
}
}
/// <summary>
/// Called internally to read a large array.
/// </summary>
/// <param name="line">The line containing the beginning of a large array.</param>
/// <returns>The array read.</returns>
private double[] ReadLargeArray(String line)
{
String str = line.Substring(9);
int l = int.Parse(str);
double[] result = new double[l];
int index = 0;
while ((line = this.reader.ReadLine()) != null)
{
line = line.Trim();
// is it a comment
if (line.StartsWith("//"))
{
continue;
}
else if (line.StartsWith("##end"))
{
break;
}
double[] t = NumberList.FromList(CSVFormat.EgFormat, line);
EngineArray.ArrayCopy(t, 0, result, index, t.Length);
index += t.Length;
}
return(result);
}
/// <summary>
/// Load a matrix from the reader.
/// </summary>
/// <param name="xmlIn">The XML reader.</param>
/// <returns>The loaded matrix.</returns>
public static Matrix LoadMatrix(ReadXML xmlIn)
{
int rows = xmlIn.LastTag.GetAttributeInt(
PersistorUtil.ATTRIBUTE_MATRIX_ROWS);
int cols = xmlIn.LastTag.GetAttributeInt(
PersistorUtil.ATTRIBUTE_MATRIX_COLS);
Matrix matrix = new Matrix(rows, cols);
int row = 0;
String end = xmlIn.LastTag.Name;
while (xmlIn.ReadToTag())
{
if (xmlIn.IsIt(end, false))
{
break;
}
if (xmlIn.IsIt(PersistorUtil.ROW, true))
{
String str = xmlIn.ReadTextToTag();
double[] d = NumberList.FromList(CSVFormat.EG_FORMAT, str);
for (int col = 0; col < d.Length; col++)
{
matrix[row, col] = d[col];
}
row++;
}
}
return(matrix);
}
/// <summary>
/// Handle an item.
/// </summary>
/// <param name="xmlin">The XML input object.</param>
public void HandleItem(ReadXML xmlin)
{
String name = xmlin.LastTag.GetAttributeValue(
TrainingContinuationPersistor.ATTRIBUTE_NAME);
String str = xmlin.ReadTextToTag();
double[] list = NumberList.FromList(CSVFormat.EG_FORMAT, str);
this.current[name] = list;
}
/// <inheritdoc/>
public IActivationFunction CreateActivationFunction(String fn)
{
String name;
double[] p;
int index = fn.IndexOf('[');
if (index != -1)
{
name = fn.Substring(0, index).ToLower();
int index2 = fn.IndexOf(']');
if (index2 == -1)
{
throw new EncogError(
"Unbounded [ while parsing activation function.");
}
String a = fn.Substring(index + 1, index2);
p = NumberList.FromList(CSVFormat.EgFormat, a);
}
else
{
name = fn.ToLower();
p = new double[0];
}
IActivationFunction af = AllocateAF(name);
if (af == null)
{
return(null);
}
if (af.ParamNames.Length != p.Length)
{
throw new EncogError(name + " expected "
+ af.ParamNames.Length + ", but " + p.Length
+ " were provided.");
}
for (int i = 0; i < af.ParamNames.Length; i++)
{
af.Params[i] = p[i];
}
return(af);
}
/// <summary>
/// Parse a double array from a name-value collection of params.
/// </summary>
///
/// <param name="paras">The name-value pairs.</param>
/// <param name="name">The name to parse.</param>
/// <returns>The parsed double array value.</returns>
public static double[] ParseDoubleArray(IDictionary <String, String> paras,
String name)
{
String v = null;
try
{
v = paras[name];
if (v == null)
{
throw new PersistError("Missing property: " + name);
}
return(NumberList.FromList(CSVFormat.EgFormat, v));
}
catch (FormatException)
{
throw new PersistError("Field: " + name + ", "
+ "invalid integer: " + v);
}
}
private IRadialBasisFunction LoadRBF(String name, ReadXML xmlin)
{
String clazz = ReflectionUtil.ResolveEncogClass(name);
if (clazz == null)
{
throw new NeuralNetworkError("Unknown RBF function type: " + name);
}
IRadialBasisFunction result = (IRadialBasisFunction)ReflectionUtil.LoadObject(clazz);
while (xmlin.ReadToTag())
{
if (xmlin.IsIt(name, false))
{
break;
}
else if (xmlin.IsIt(PROPERTY_CENTERS, true))
{
String str = xmlin.ReadTextToTag();
double[] centers = NumberList.FromList(CSVFormat.EG_FORMAT, str);
result.Centers = centers;
}
else if (xmlin.IsIt(PROPERTY_PEAK, true))
{
String str = xmlin.ReadTextToTag();
double d = Double.Parse(str);
result.Peak = d;
}
else if (xmlin.IsIt(PROPERTY_WIDTH, true))
{
String str = xmlin.ReadTextToTag();
double d = Double.Parse(str);
result.Width = d;
}
}
return(result);
}
/// <inheritdoc/>
public Object Read(Stream mask0)
{
var result = new BoltzmannMachine();
var ins0 = new EncogReadHelper(mask0);
EncogFileSection section;
while ((section = ins0.ReadNextSection()) != null)
{
if (section.SectionName.Equals("BOLTZMANN") &&
section.SubSectionName.Equals("PARAMS"))
{
IDictionary <String, String> paras = section.ParseParams();
EngineArray.PutAll(paras, result.Properties);
}
if (section.SectionName.Equals("BOLTZMANN") &&
section.SubSectionName.Equals("NETWORK"))
{
IDictionary <String, String> p = section.ParseParams();
result.Weights = NumberList.FromList(CSVFormat.EgFormat,
(p[PersistConst.Weights]));
result.SetCurrentState(NumberList.FromList(CSVFormat.EgFormat,
(p[PersistConst.Output])));
result.NeuronCount = EncogFileSection.ParseInt(p,
PersistConst.NeuronCount);
result.Threshold = NumberList.FromList(CSVFormat.EgFormat,
(p[PersistConst.Thresholds]));
result.AnnealCycles = EncogFileSection.ParseInt(p,
BoltzmannMachine.ParamAnnealCycles);
result.RunCycles = EncogFileSection.ParseInt(p,
BoltzmannMachine.ParamRunCycles);
result.Temperature = EncogFileSection.ParseDouble(p,
PersistConst.Temperature);
}
}
return(result);
}
/// <summary>
/// Handle reading an item tag.
/// </summary>
/// <param name="xmlIn">The XML reader.</param>
private void HandleItem(ReadXML xmlIn)
{
IDictionary <String, String> properties = xmlIn.ReadPropertyBlock();
INeuralDataPair pair = null;
INeuralData input = new BasicNeuralData(NumberList
.FromList(CSVFormat.EG_FORMAT, properties
[BasicNeuralDataSetPersistor.TAG_INPUT]));
if (properties.ContainsKey(BasicNeuralDataSetPersistor.TAG_IDEAL))
{
// supervised
INeuralData ideal = new BasicNeuralData(NumberList
.FromList(CSVFormat.EG_FORMAT, properties
[BasicNeuralDataSetPersistor.TAG_IDEAL]));
pair = new BasicNeuralDataPair(input, ideal);
}
else
{
// unsupervised
pair = new BasicNeuralDataPair(input);
}
this.currentDataSet.Add(pair);
}
/// <summary>
/// Load the specified Encog object from an XML reader.
/// </summary>
/// <param name="xmlIn">The XML reader to use.</param>
/// <returns>The loaded object.</returns>
public IEncogPersistedObject Load(ReadXML xmlIn)
{
int neuronCount = 0;
int x = 0;
int y = 0;
double biasActivation = 1;
String threshold = null;
IActivationFunction activation = null;
String end = xmlIn.LastTag.Name;
String context = null;
while (xmlIn.ReadToTag())
{
if (xmlIn.IsIt(BasicLayerPersistor.TAG_ACTIVATION, true))
{
xmlIn.ReadToTag();
String type = xmlIn.LastTag.Name;
activation = BasicLayerPersistor.LoadActivation(type, xmlIn);
}
else if (xmlIn.IsIt(BasicLayerPersistor.PROPERTY_NEURONS, true))
{
neuronCount = xmlIn.ReadIntToTag();
}
else if (xmlIn.IsIt(BasicLayerPersistor.PROPERTY_X, true))
{
x = xmlIn.ReadIntToTag();
}
else if (xmlIn.IsIt(BasicLayerPersistor.PROPERTY_Y, true))
{
y = xmlIn.ReadIntToTag();
}
else if (xmlIn.IsIt(BasicLayerPersistor.PROPERTY_THRESHOLD, true))
{
threshold = xmlIn.ReadTextToTag();
}
else if (xmlIn.IsIt(PROPERTY_CONTEXT, true))
{
context = xmlIn.ReadTextToTag();
}
else if (xmlIn.IsIt(BasicLayerPersistor.PROPERTY_BIAS_ACTIVATION, true))
{
biasActivation = double.Parse(xmlIn.ReadTextToTag());
}
else if (xmlIn.IsIt(end, false))
{
break;
}
}
if (neuronCount > 0)
{
ContextLayer layer;
if (threshold == null)
{
layer = new ContextLayer(activation, false, neuronCount);
}
else
{
double[] t = NumberList.FromList(CSVFormat.EG_FORMAT, threshold);
layer = new ContextLayer(activation, true, neuronCount);
for (int i = 0; i < t.Length; i++)
{
layer.BiasWeights[i] = t[i];
}
}
if (context != null)
{
double[] c = NumberList.FromList(CSVFormat.EG_FORMAT, context);
for (int i = 0; i < c.Length; i++)
{
layer.Context[i] = c[i];
}
}
layer.X = x;
layer.Y = y;
layer.BiasActivation = biasActivation;
return(layer);
}
return(null);
}
