//
// PRIVATE METHODS
//
private void constructFOLEg()
{
ithExampleConstant = new Constant(folDSDomain.getExampleConstant(egNo));
List <Term> terms = new List <Term>();
terms.Add(ithExampleConstant);
// Create the classification sentence
classification = new Predicate(folDSDomain.getGoalPredicateName(),
terms);
if (!example.getAttributeValueAsString(
folDSDomain.getDataSetTargetName()).Equals(
folDSDomain.getTrueGoalValue()))
{
// if not true then needs to be a Not sentence
classification = new NotSentence(classification);
}
// Create the description sentence
List <Sentence> descParts = new List <Sentence>();
foreach (String dname in folDSDomain.getDescriptionDataSetNames())
{
String foldDName = folDSDomain.getFOLName(dname);
terms = new List <Term>();
terms.Add(ithExampleConstant);
// If multivalued becomes a two place predicate
// e.g: Patrons(X1, Some)
// otherwise: Hungry(X1) or ~ Hungry(X1)
// see pg 769 of AIMA
Sentence part = null;
if (folDSDomain.isMultivalued(dname))
{
terms.Add(new Constant(folDSDomain.getFOLName(example
.getAttributeValueAsString(dname))));
part = new Predicate(foldDName, terms);
}
else
{
part = new Predicate(foldDName, terms);
// Need to determine if false
if (!folDSDomain.getTrueGoalValue().Equals(
example.getAttributeValueAsString(dname)))
{
part = new NotSentence(part);
}
}
descParts.Add(part);
}
if (descParts.Count == 1)
{
description = descParts[0];
}
else if (descParts.Count > 1)
{
description = new ConnectedSentence(Connectors.AND, descParts
[0], descParts[1]);
for (int i = 2; i < descParts.Count; i++)
{
description = new ConnectedSentence(Connectors.AND,
description, descParts[i]);
}
}
}
