Java Code Examples for it.unimi.dsi.fastutil.ints.IntSet#size()

The following examples show how to use it.unimi.dsi.fastutil.ints.IntSet#size() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: MAPEvaluator.java    From jstarcraft-ai with Apache License 2.0 6 votes vote down vote up 
@Override
protected float measure(IntSet checkCollection, IntList rankList) {
    if (rankList.size() > size) {
        rankList = rankList.subList(0, size);
    }
    int count = 0;
    float map = 0F;
    for (int index = 0; index < rankList.size(); index++) {
        int itemIndex = rankList.get(index);
        if (checkCollection.contains(itemIndex)) {
            count++;
            map += 1F * count / (index + 1);
        }
    }
    return map / (checkCollection.size() < rankList.size() ? checkCollection.size() : rankList.size());
}
Example 2
Source File: AgreeSetGenerator.java    From metanome-algorithms with Apache License 2.0 6 votes vote down vote up 
private boolean isSubset(IntList actuelList, Map<Integer, IntSet> index) {

        boolean first = true;
        IntSet positions = new IntArraySet();
        for (int e : actuelList) {
            if (!index.containsKey(Integer.valueOf(e))) {
                return false;
            }
            if (first) {
                positions.addAll(index.get(Integer.valueOf(e)));
                first = false;
            } else {

                this.intersect(positions, index.get(Integer.valueOf(e)));
                // FIXME: Throws UnsupportedOperationExeption within fastUtil
                // positions.retainAll(index.get(e));
            }
            if (positions.size() == 0) {
                return false;
            }
        }
        return true;
    }
Example 3
Source File: RankingTask.java    From jstarcraft-rns with Apache License 2.0 5 votes vote down vote up 
@Override
protected IntList recommend(Model recommender, int userIndex) {
    ReferenceModule trainModule = trainModules[userIndex];
    ReferenceModule testModule = testModules[userIndex];
    IntSet itemSet = new IntOpenHashSet();
    for (DataInstance instance : trainModule) {
        itemSet.add(instance.getQualityFeature(itemDimension));
    }
    // TODO 此处代码需要重构
    ArrayInstance copy = new ArrayInstance(trainMarker.getQualityOrder(), trainMarker.getQuantityOrder());
    copy.copyInstance(testModule.getInstance(0));
    copy.setQualityFeature(userDimension, userIndex);

    List<Integer2FloatKeyValue> rankList = new ArrayList<>(itemSize - itemSet.size());
    for (int itemIndex = 0; itemIndex < itemSize; itemIndex++) {
        if (itemSet.contains(itemIndex)) {
            continue;
        }
        copy.setQualityFeature(itemDimension, itemIndex);
        recommender.predict(copy);
        rankList.add(new Integer2FloatKeyValue(itemIndex, copy.getQuantityMark()));
    }
    Collections.sort(rankList, (left, right) -> {
        return Float.compare(right.getValue(), left.getValue());
    });

    IntList recommendList = new IntArrayList(rankList.size());
    for (Integer2FloatKeyValue keyValue : rankList) {
        recommendList.add(keyValue.getKey());
    }
    return recommendList;
}
Example 4
Source File: RecallEvaluator.java    From jstarcraft-ai with Apache License 2.0 5 votes vote down vote up 
@Override
protected float measure(IntSet checkCollection, IntList rankList) {
    if (rankList.size() > size) {
        rankList = rankList.subList(0, size);
    }
    int count = 0;
    for (int itemIndex : rankList) {
        if (checkCollection.contains(itemIndex)) {
            count++;
        }
    }
    return count / (checkCollection.size() + 0F);
}
Example 5
Source File: NegativeSamplingExpander.java    From samantha with MIT License 5 votes vote down vote up 
private IntList getSampledIndices(IntSet trues, int maxVal) {
    IntList samples = new IntArrayList();
    int num = trues.size();
    if (maxNumSample != null) {
        num = maxNumSample;
    }
    for (int i=0; i<num; i++) {
        int dice = new Random().nextInt(maxVal);
        if (!trues.contains(dice)) {
            samples.add(dice);
        }
    }
    return samples;
}
Example 6
Source File: DateColumn.java    From tablesaw with Apache License 2.0 5 votes vote down vote up 
@Override
public int countUnique() {
  IntSet ints = new IntOpenHashSet(size());
  for (int i = 0; i < size(); i++) {
    ints.add(data.getInt(i));
  }
  return ints.size();
}
Example 7
Source File: IntColumn.java    From tablesaw with Apache License 2.0 5 votes vote down vote up 
@Override
public int countUnique() {
  IntSet uniqueElements = new IntOpenHashSet();
  for (int i = 0; i < size(); i++) {
    uniqueElements.add(getInt(i));
  }
  return uniqueElements.size();
}
Example 8
Source File: DateColumn.java    From tablesaw with Apache License 2.0 5 votes vote down vote up 
@Override
public int countUnique() {
  IntSet ints = new IntOpenHashSet(size());
  for (int i = 0; i < size(); i++) {
    ints.add(data.getInt(i));
  }
  return ints.size();
}
Example 9
Source File: IntColumn.java    From tablesaw with Apache License 2.0 5 votes vote down vote up 
@Override
public int countUnique() {
  IntSet uniqueElements = new IntOpenHashSet();
  for (int i = 0; i < size(); i++) {
    uniqueElements.add(getInt(i));
  }
  return uniqueElements.size();
}
Example 10
Source File: AccessTrace.java    From cache2k-benchmark with Apache License 2.0 5 votes vote down vote up 
private void initStatistics() {
  IntSet _values = new IntOpenHashSet();
  for (int v : getArray()) {
    _values.add(v);
    if (v < lowValue) {
      lowValue = v;
    }
    if (v > highValue) {
      highValue = v;
    }
  }
  valueCount = _values.size();
}