Examples of TIntFloatIterator

gnu.trove.iterator.TIntFloatIterator

ssing keys/values through an iterator: for ( TIntFloatIterator it = map.iterator(); it.hasNext(); ) { it.advance(); if ( satisfiesCondition( it.key() ) { doSomethingWithValue( it.value() ); } }

 // modifying values in-place through iteration: for ( TIntFloatIterator it = map.iterator(); it.hasNext(); ) { it.advance(); if ( satisfiesCondition( it.key() ) { it.setValue( newValueForKey( it.key() ) ); } }

 // deleting entries during iteration: for ( TIntFloatIterator it = map.iterator(); it.hasNext(); ) { it.advance(); if ( satisfiesCondition( it.key() ) { it.remove(); } }

 // faster iteration by avoiding hasNext(): TIntFloatIterator iterator = map.iterator(); for ( int i = map.size(); i-- > 0; ) { iterator.advance(); doSomethingWithKeyAndValue( iterator.key(), iterator.value() ); }

Examples of gnu.trove.iterator.TIntFloatIterator

  }


  @Override
  public void addThruPipe(Instance inst) {
    HashSparseVector data = (HashSparseVector) inst.getData();
    TIntFloatIterator it = data.data.iterator();
    while (it.hasNext()) {
      it.advance();
      int id = it.key();
      if (idf[id] > 0) {
        float value = (float) (it.value()*Math.log(docNum / idf[id]));
        data.put(id, value);
      }
    }


  }

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Examples of gnu.trove.iterator.TIntFloatIterator

  public void noFeatureSelection(){
    Arrays.fill(isUseful, true);
  }
  public HashSparseVector select(HashSparseVector vec){
    HashSparseVector sv=new HashSparseVector();    
    TIntFloatIterator it=vec.data.iterator();
    while(it.hasNext()){
      it.advance();
      if(isUseful[it.key()])
        sv.put(it.key(), it.value());
    }
    return sv;
  }

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Examples of gnu.trove.iterator.TIntFloatIterator

  }


  @Override
  public void addThruPipe(Instance inst) {
    HashSparseVector data = (HashSparseVector) inst.getData();
    TIntFloatIterator it = data.data.iterator();
    while (it.hasNext()) {
      it.advance();
      idf[it.key()]++;
    }
  }

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Examples of gnu.trove.iterator.TIntFloatIterator

    else{
      return false;
    }
    
    HashSparseVector data = (HashSparseVector) inst.getData();
    TIntFloatIterator it = data.data.iterator();
    while (it.hasNext()) {
      it.advance();
      int feature=it.key();
      for(int i=0;i<type.length;i++){
        addItemFrequency(feature, type[i], (int)it.value());
      }
    }
    
    return true;
  }

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Examples of gnu.trove.iterator.TIntFloatIterator

   * @return 数组下标
   */
  public static int[] sort(TIntFloatHashMap tmap) {
    HashMap<Integer, Float> map = new HashMap<Integer, Float>();


    TIntFloatIterator it = tmap.iterator();
    while (it.hasNext()) {
      it.advance();
      int id = it.key();
      float val = it.value();
      map.put(id, Math.abs(val));
    }
    it = null;


    List<Entry> list = sort(map);

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Examples of gnu.trove.iterator.TIntFloatIterator

  /**
   * 一次性统计概率，节约时间
   */
  private void statisticProb() {
    System.out.println("统计概率");
    TIntFloatIterator it = wordProb.iterator();
    while(it.hasNext()){
      it.advance();
      float v = it.value()/totalword;
      it.setValue(v);
      int key = it.key();
      if(key<0)
        continue;
      Cluster cluster = new Cluster(key,v,alpahbet.lookupString(key));
      clusters.put(key, cluster);
    }


    TIntObjectIterator<TIntFloatHashMap> it1 = pcc.iterator();
    while(it1.hasNext()){
      it1.advance();
      TIntFloatHashMap map = it1.value();
      TIntFloatIterator it2 = map.iterator();
      while(it2.hasNext()){
        it2.advance();
        it2.setValue(it2.value()/totalword);
      }
    }


  }

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Examples of gnu.trove.iterator.TIntFloatIterator

    slots.remove(c2);
    slots.add(newid);
    pcc.put(newid, newpcc);
    pcc.remove(c1);
    pcc.remove(c2);
    TIntFloatIterator it2 = inewpcc.iterator();
    while(it2.hasNext()){
      it2.advance();
      TIntFloatHashMap pmap = pcc.get(it2.key());
      //            if(pmap==null){
      //              pmap = new TIntFloatHashMap();
      //              pcc.put(it2.key(), pmap);
      //            }
      pmap.put(newid, it2.value());
      pmap.remove(c1);
      pmap.remove(c2);
    }




    //
    //newid 永远大于 it3.key;
    wcc.put(newid, new TIntFloatHashMap());
    wcc.remove(c1);
    wcc.remove(c2);
    TIntFloatIterator it3 = newwcc.iterator();
    while(it3.hasNext()){
      it3.advance();
      TIntFloatHashMap pmap = wcc.get(it3.key());
      pmap.put(newid, it3.value());
      pmap.remove(c1);
      pmap.remove(c2);
    }


    wordProb.remove(c1);

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Examples of gnu.trove.iterator.TIntFloatIterator

   * v + sv
   * @param sv
   */
  public void plus(ISparseVector sv) {
    if(sv instanceof HashSparseVector){
      TIntFloatIterator it = ((HashSparseVector) sv).data.iterator();
      while(it.hasNext()){
        it.advance();
        data.adjustOrPutValue(it.key(), it.value(),it.value());
      }
    }else if(sv instanceof BinarySparseVector){
      TIntIterator it = ((BinarySparseVector) sv).data.iterator();
      while(it.hasNext()){
        int i = it.next();
        data.adjustOrPutValue(i,DefaultValue,DefaultValue);
      }
    }


  }

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Examples of gnu.trove.iterator.TIntFloatIterator

   * @param sv
   * @param w
   */
  public void plus(ISparseVector sv, float w) {
    if(sv instanceof HashSparseVector){
      TIntFloatIterator it = ((HashSparseVector) sv).data.iterator();
      while(it.hasNext()){
        it.advance();
        float v = it.value()*w;
        data.adjustOrPutValue(it.key(), v,v);
      }
    }else if(sv instanceof BinarySparseVector){
      TIntIterator it = ((BinarySparseVector) sv).data.iterator();
      while(it.hasNext()){
        int i = it.next();
        data.adjustOrPutValue(i,w,w);
      }
    }
  }

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Examples of gnu.trove.iterator.TIntFloatIterator

   * @return
   */
  public float cos(HashSparseVector sv) {
    float v =0f;
    if(sv.size() < data.size()){
      TIntFloatIterator it = sv.data.iterator();      
      while(it.hasNext()){
        it.advance();
        v += data.get(it.key())*it.value();
      }
    }else{
      TIntFloatIterator it = data.iterator();      
      while(it.hasNext()){
        it.advance();
        v += sv.data.get(it.key())*it.value();
      }
    }
    TIntFloatIterator it = sv.data.iterator();
    float sum=0.0f;
    while (it.hasNext()) {
      it.advance();
      if(it.key()==0)
        continue;
      sum+=it.value()*it.value();
    }
    v/=Math.abs(sum)<0.00001?1:Math.sqrt(sum);
    it = data.iterator();
    sum=0.0f;
    while (it.hasNext()) {
      it.advance();
      if(it.key()==0)
        continue;
      sum+=it.value()*it.value();
    }
    v/=Math.abs(sum)<0.00001?1:Math.sqrt(sum);
    return v;
  }

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