Package ivory.lsh.data

Examples of ivory.lsh.data.NBitSignature.countSetBits()

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  public void testPermuteBit() throws IOException {
    PermutationByBit p = new PermutationByBit(D);

    NBitSignature s = getRandomSignature();

    int cntBits = s.countSetBits();

    int loopcnt = 0;
    NBitSignature permutedS = new NBitSignature(D);
    while (loopcnt++ < 100) {
      ArrayListOfIntsWritable a = p.nextPermutation();
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    int loopcnt = 0;
    NBitSignature permutedS = new NBitSignature(D);
    while (loopcnt++ < 100) {
      ArrayListOfIntsWritable a = p.nextPermutation();
      s.perm(a, permutedS);
      System.out.println(permutedS.countSetBits());
      assertTrue(cntBits == permutedS.countSetBits());
      // System.out.println(permutedS);
    }
  }
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    NBitSignature permutedS = new NBitSignature(D);
    while (loopcnt++ < 100) {
      ArrayListOfIntsWritable a = p.nextPermutation();
      s.perm(a, permutedS);
      System.out.println(permutedS.countSetBits());
      assertTrue(cntBits == permutedS.countSetBits());
      // System.out.println(permutedS);
    }
  }

  @Test
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    int tempD = D;
    D = 64;
    NBitSignature s = getRandomSignature();
    System.out.println(s + "\n========================");

    int cntBits = s.countSetBits();
    System.out.println(s.countSetBits());

    int loopcnt = 0;
    NBitSignature permutedS = new NBitSignature(D);
    while (true) {
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    D = 64;
    NBitSignature s = getRandomSignature();
    System.out.println(s + "\n========================");

    int cntBits = s.countSetBits();
    System.out.println(s.countSetBits());

    int loopcnt = 0;
    NBitSignature permutedS = new NBitSignature(D);
    while (true) {
      try {
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    while (true) {
      try {
        ArrayListOfIntsWritable a = p.nextPermutation();
        s.perm(a, permutedS);
        System.out.println((loopcnt++) + "\n" + permutedS);
        assertTrue(cntBits == permutedS.countSetBits());
        // System.out.println(permutedS);
      } catch (RuntimeException e) {
        D = tempD;
        return;
      }
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