public static Alignment getJoinedMapping(Alignment[] mappings, double[] weights)
throws PCFException, CorrespondenceException {
if (mappings.length != weights.length) {
throw new PCFException(
PCFException.INVALID_PARAM_COMBINATION,
"in a mapping join operation you need the same number of mappings and weights");
}
HashMap<Correspondence, Double> hashedConfidences = new HashMap<Correspondence, Double>();
for (int m = 0; m < mappings.length; m++) {
double weight = weights[m];
for (Correspondence c : mappings[m]) {
if (hashedConfidences.containsKey(c)) {
hashedConfidences.put(c, c.getConfidence() * weight + hashedConfidences.get(c));
} else {
hashedConfidences.put(c, c.getConfidence() * weight);
}
}
}
Alignment joinedMapping = new Alignment();
for (Correspondence c : hashedConfidences.keySet()) {
c.setConfidence(hashedConfidences.get(c));
joinedMapping.push(c);
}
return joinedMapping;
}
public void normalize(double normConfidence) throws AlcomoException {
for (Correspondence c : this.correspondences) {
c.setConfidence(normConfidence);
}
}
