Examples of org.apache.mahout.fpm.pfpgrowth.fpgrowth.Pattern

Package org.apache.mahout.fpm.pfpgrowth.fpgrowth

Examples of org.apache.mahout.fpm.pfpgrowth.fpgrowth.Pattern

org.apache.mahout.fpm.pfpgrowth.fpgrowth.Pattern
A in FPGrowth is a list of items (here int) and the support(the number of times the pattern is seen in the dataset)

    FrequentPatternMaxHeap pats = new FrequentPatternMaxHeap(k, true);
    FPTree.FPNode currNode = tree.root();
    while (currNode.numChildren() == 1) {
      currNode = currNode.children().iterator().next();
      FrequentPatternMaxHeap singlePat = new FrequentPatternMaxHeap(k, true);
      Pattern p = new Pattern();
      p.add(currNode.attribute(), currNode.count());
      singlePat.insert(p);
      pats = cross(singlePat, pats, k);
      pats.insert(p);
    }

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                                                  int attribute,
                                                  long count,
                                                  boolean addAttribute) {
    frequentPatterns.addAll(returnedPatterns, attribute, count);
    if (frequentPatterns.addable(count) && addAttribute) {
      Pattern p = new Pattern();
      p.add(attribute, count);
      frequentPatterns.insert(p);
    }


    return frequentPatterns;
  }

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      prefixPats = mineSinglePrefix(p, k);
    }


    FrequentPatternMaxHeap suffixPats = new FrequentPatternMaxHeap(k, true);


    Pattern thisPat = new Pattern();
    thisPat.add(currentAttribute, currentAttributeCount);
    suffixPats.insert(thisPat);


    for (int attr : q.attrIterableRev())  {
      mergeHeap(suffixPats,
                growth(q, minSupportMutable, k, attr, updater),

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    for (Pattern p : pPats.getHeap()) {
      int[] pints = p.getPattern();
      for (Pattern q : qPats.getHeap()) {
        int[] qints = q.getPattern();
        
        Pattern pq = new Pattern();
        for (int pi = 0; pi < p.length(); pi++) 
          pq.add(pints[pi], p.support());
        for (int qi = 0; qi < q.length(); qi++) 
          pq.add(qints[qi], q.support());
        pats.insert(pq);
      }
    }


    for (Pattern q : qPats.getHeap()) {
      Pattern qq = new Pattern();
      int[] qints = q.getPattern();
      for (int qi = 0; qi < q.length(); qi++) 
        qq.add(qints[qi], q.support());
      pats.insert(qq);
    }


    return pats;
  }

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    FrequentPatternMaxHeap pats = new FrequentPatternMaxHeap(k, true);
    FPTree.FPNode currNode = tree.root();
    while (currNode.numChildren() == 1) {
      currNode = currNode.children().iterator().next();
      FrequentPatternMaxHeap singlePat = new FrequentPatternMaxHeap(k, true);
      Pattern p = new Pattern();
      p.add(currNode.attribute(), currNode.count());
      singlePat.insert(p);
      pats = cross(singlePat, pats, k);
      pats.insert(p);
    }

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                                                  int attribute,
                                                  long count,
                                                  boolean addAttribute) {
    frequentPatterns.addAll(returnedPatterns, attribute, count);
    if (frequentPatterns.addable(count) && addAttribute) {
      Pattern p = new Pattern();
      p.add(attribute, count);
      frequentPatterns.insert(p);
    }


    return frequentPatterns;
  }

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Related Classes of org.apache.mahout.fpm.pfpgrowth.fpgrowth.Pattern

org.apache.mahout.fpm.pfpgrowth.convertors.TopKPatternsOutputConverter

org.apache.mahout.fpm.pfpgrowth.fpgrowth2.FPGrowthIds

org.apache.mahout.fpm.pfpgrowth.fpgrowth2.FPGrowthObj

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