public void writeLocalFeatures(Instance instance, BufferedWriter writer) throws IOException {
boolean useGlobalFeatures = params.getUseGlobalFeatures();
params.setUseGlobalFeatures(false);
for (int i = 0; i < instance.size(); i++) {
SparseFeatureVector localFv =
calculateFeature(
instance,
instance.getGoldLabel(),
i,
instance.getSequence().get(i).getNegativeClassLabel());
localFv.compact();
LabelUnit label = instance.getGoldLabel().getLabel(i);
writer.append(label.toString());
Map<Integer, Double> fvMap = new TreeMap<Integer, Double>();
for (VectorEntry entry : localFv.getFeatureVectors().get(0).getSv()) {
fvMap.put(entry.index(), entry.get());
}
for (Entry<Integer, Double> fvEntry : fvMap.entrySet()) {
writer.append(" ");
writer.append(String.valueOf(fvEntry.getKey()));
writer.append(":");
writer.append(String.valueOf(fvEntry.getValue()));
}
writer.append("\n");
}
writer.flush();
params.setUseGlobalFeatures(useGlobalFeatures);
}
public SparseFeatureVector calculateFeature(Instance instance, Label y, int size) {
SparseFeatureVector fv = new SparseFeatureVector(params);
for (int i = 0; i < size; i++) {
fv.add(calculateFeature(instance, y, i, y.getLabel(i)));
}
return fv;
}