/* Evaluate the "selected" candidates in the corpus using its "gold"
* candidates. */
public DistanceReport evaluate() {
DistanceReport dreport = new DistanceReport();
for (Document<Token> doc : corpus) {
if (!doc.isTrain()) {
Coordinate systemCoord = doc.getSystemCoord();
Coordinate goldCoord = doc.getGoldCoord();
if (systemCoord != null && goldCoord != null) {
dreport.addDistance(systemCoord.distanceInKm(goldCoord));
}
}
}
return dreport;
}
