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public static TryGetValueAsDouble ( |
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| xmlParent | ||
| elemName | string | |
| return | double? | |
/// <summary>
/// Read Radial Basis Function settings from config XML.
/// </summary>
public static void ReadRbfAuxArgMutationConfig(XmlElement xmlConfig,
out double mutationSigmaCenter,
out double mutationSigmaRadius)
{
// Get root activation element.
XmlNodeList nodeList = xmlConfig.GetElementsByTagName(
"RbfAuxArgMutationConfig", "");
if (nodeList.Count != 1)
{
throw new ArgumentException("Missing or invalid RbfAuxArgMutationConfig" +
"XML config settings.");
}
XmlElement xmlRbfConfig = nodeList[0] as XmlElement;
double? center = XmlUtils.TryGetValueAsDouble(xmlRbfConfig,
"MutationSigmaCenter");
double?radius = XmlUtils.TryGetValueAsDouble(xmlRbfConfig,
"MutationSigmaRadius");
if (null == center || null == radius)
{
throw new ArgumentException("Missing or invalid RbfAuxArgMutationConfig" +
"XML config settings.");
}
mutationSigmaCenter = center.Value;
mutationSigmaRadius = radius.Value;
}
/// <summary>
///
/// </summary>
/// <param name="substrateXml"></param>
/// <param name="substrateSettingsXml"></param>
/// <param name="multispatial"></param>
/// <returns></returns>
public static ISubstrate ReadSubstrateFromXml(XmlElement substrateXml, XmlElement substrateSettingsXml)
{
var activationFunction = CreateActivationFunctionFromString(XmlUtils.GetValueAsString(substrateSettingsXml, "Function"));
var weightThreshold = XmlUtils.TryGetValueAsDouble(substrateSettingsXml, "WeightThreshold") ?? 0.2;
var maxWeight = XmlUtils.TryGetValueAsDouble(substrateSettingsXml, "MaxWeight") ?? 5.0;
bool multispatial = XmlUtils.TryGetValueAsBool(substrateSettingsXml, "Multispatial") ?? false;
bool leo = XmlUtils.TryGetValueAsBool(substrateSettingsXml, "Leo") ?? false;
var layerlist = new List <SubstrateNodeSet>();
var nodes = new Dictionary <uint, SubstrateNode>();
uint nodeid = 1;
foreach (XmlElement layer in substrateXml.GetElementsByTagName("Layer"))
{
SubstrateNodeSet.LayerType type;
if (!Enum.TryParse(layer.GetAttribute("type"), out type))
{
throw new Exception("Layer type must be defined as Input/Output/Hidden");
}
var tmp = new SubstrateNodeSet(layer.ChildNodes.Count, type);
foreach (XmlNode n in layer.ChildNodes)
{
if (n is XmlComment)
{
continue;
}
var node = (XmlElement)n;
var tmpNode = new SubstrateNode(nodeid, Array.ConvertAll(node.InnerText.Split(','), double.Parse));
tmp.NodeList.Add(tmpNode);
nodes.Add(nodeid, tmpNode);
nodeid++;
}
layerlist.Add(tmp);
}
XmlNodeList mappings = substrateXml.GetElementsByTagName("Mapping");
XmlNodeList connections = substrateXml.GetElementsByTagName("Connection");
ISubstrate retval;
if (connections.Count > 0)
{
var connectionList = new List <SubstrateConnection>();
foreach (XmlElement connection in connections)
{
var ids = Array.ConvertAll(connection.InnerText.Split(','), uint.Parse);
connectionList.Add(new SubstrateConnection(nodes[ids[0]], nodes[ids[1]]));
}
retval = multispatial ? (ISubstrate) new MultiSpatialSubstrate(layerlist, activationFunction, 0,
weightThreshold, maxWeight, connectionList) : new Substrate(layerlist, activationFunction, 0,
weightThreshold, maxWeight, connectionList);
}
else if (mappings.Count > 0)
{
var mappingList = new List <NodeSetMapping>();
foreach (XmlElement mapping in mappings)
{
var ids = Array.ConvertAll(mapping.InnerText.Split(','), int.Parse);
double maxDist;
double?maxDistN = null;
if (double.TryParse(mapping.GetAttribute("maxDist"), out maxDist))
{
maxDistN = maxDist;
}
mappingList.Add(NodeSetMapping.Create(ids[0], ids[1], maxDistN));
}
retval = multispatial ? (ISubstrate) new MultiSpatialSubstrate(layerlist, activationFunction, 0,
weightThreshold, maxWeight, mappingList) : new Substrate(layerlist, activationFunction, 0,
weightThreshold, maxWeight, mappingList);
}
else
{
throw new XmlException("Faulty substrate definition, at least one Mapping or Connection element must be defined.");
}
retval.Leo = leo;
return(retval);
}