/**
* Calc Node Score With Parent Deleted
*
* @param nNode node for which the score is calculate
* @param nCandidateParent candidate parent to delete from the existing parent set
* @return log score
*/
public double calcScoreWithMissingParent(int nNode, int nCandidateParent) {
ParentSet oParentSet = m_BayesNet.getParentSet(nNode);
// sanity check: nCandidateParent should be in parent set already
if (!oParentSet.contains(nCandidateParent)) {
return -1e100;
}
// set up candidate parent
int iParent = oParentSet.deleteParent(nCandidateParent, m_BayesNet.m_Instances);
// calculate the score
double logScore = calcNodeScore(nNode);
// restore temporarily deleted parent
oParentSet.addParent(nCandidateParent, iParent, m_BayesNet.m_Instances);
return logScore;
} // CalcScoreWithMissingParent
/**
* Calc Node Score With AddedParent
*
* @param nNode node for which the score is calculate
* @param nCandidateParent candidate parent to add to the existing parent set
* @return log score
*/
public double calcScoreWithExtraParent(int nNode, int nCandidateParent) {
ParentSet oParentSet = m_BayesNet.getParentSet(nNode);
// sanity check: nCandidateParent should not be in parent set already
if (oParentSet.contains(nCandidateParent)) {
return -1e100;
}
// set up candidate parent
oParentSet.addParent(nCandidateParent, m_BayesNet.m_Instances);
// calculate the score
double logScore = calcNodeScore(nNode);
// delete temporarily added parent
oParentSet.deleteLastParent(m_BayesNet.m_Instances);
return logScore;
} // CalcScoreWithExtraParent