Example #1
0
  private int[] applyNewFeatures(List<RankList> samples, int[] features) {
    int totalFeatureCount = samples.get(0).get(0).getFeatureCount();
    int[] newFeatures = new int[features.length + lcList.size()];
    System.arraycopy(features, 0, newFeatures, 0, features.length);
    // for(int i=0;i<features.length;i++)
    // newFeatures[i] = features[i];
    for (int k = 0; k < lcList.size(); k++)
      newFeatures[features.length + k] = totalFeatureCount + k + 1;

    float[] addedFeatures = new float[lcList.size()];
    for (int i = 0; i < samples.size(); i++) {
      RankList rl = samples.get(i);
      for (int j = 0; j < rl.size(); j++) {
        DataPoint p = rl.get(j);
        for (int k = 0; k < lcList.size(); k++)
          addedFeatures[k] = lcList.get(k).compute(p.getExternalFeatureVector());

        p.addFeatures(addedFeatures);
      }
    }

    int[] newFeatures2 = new int[lcList.size()];
    for (int i = 0; i < lcList.size(); i++) newFeatures2[i] = newFeatures[i + features.length];

    if (keepOrigFeatures) return newFeatures;
    return newFeatures2;
  }
Example #2
0
 public int[] getFeatureFromSampleVector(List<RankList> samples) {
   DataPoint dp = samples.get(0).get(0);
   int fc = dp.getFeatureCount();
   int[] features = new int[fc];
   for (int i = 0; i < fc; i++) features[i] = i + 1;
   return features;
 }