Examples of cc.mallet.pipe.SerialPipes$Predicate

cc.mallet.pipe.SerialPipes
Convert an instance through a sequence of pipes. @author Andrew McCallum mccallum@cs.umass.edu

      }
    }
  }


  private Pipe makeSpacePredictionPipe() {
    Pipe p = new SerialPipes(new Pipe[] {
        new CharSequence2TokenSequence("."),
        new TokenSequenceLowercase(),
        new TestCRFTokenSequenceRemoveSpaces(),
        new TokenText(),
        new OffsetConjunctions(true, new int[][] { { 0 }, { 1 },

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    assertEquals(0.9409, eval.getAccuracy("Test"), 0.001);


  }


  public void testPrint() {
    Pipe p = new SerialPipes(new Pipe[] {
        new CharSequence2TokenSequence("."), new TokenText(),
        new TestCRFTokenSequenceRemoveSpaces(),
        new TokenSequence2FeatureVectorSequence(),
        new PrintInputAndTarget(), });
    InstanceList one = new InstanceList(p);

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    mcrf.setParameters(params);
    crf.print();
  }


  public void testCopyStatesAndWeights() {
    Pipe p = new SerialPipes(new Pipe[] {
        new CharSequence2TokenSequence("."), new TokenText(),
        new TestCRFTokenSequenceRemoveSpaces(),
        new TokenSequence2FeatureVectorSequence(),
        new PrintInputAndTarget(), });
    InstanceList one = new InstanceList(p);

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  }


  static String toy = "A a\nB b\nC c\nD d\nB b\nC c\n";


  public void testStartState() {
    Pipe p = new SerialPipes(new Pipe[] {
        new LineGroupString2TokenSequence(),
        new TokenSequenceMatchDataAndTarget(Pattern
            .compile("^(\\S+) (.*)"), 2, 1),
        new TokenSequenceParseFeatureString(false), new TokenText(),
        new TokenSequence2FeatureVectorSequence(true, false),

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  public void slicePipes (int num)
  {
    Pipe fpipe = getFeaturePipe ();
    if (!(fpipe instanceof SerialPipes))
      throw new IllegalArgumentException ("slicePipes: FeaturePipe must be a SerialPipes.");
    SerialPipes sp = (SerialPipes) fpipe;
    ArrayList pipes = new ArrayList ();
    for (int i = 0; i < num; i++) {
      pipes.add (sp.getPipe (0));  
      //sp.removePipe (0); TODO Fix this
    }
    //setTokenizationPipe (sp);  TODO Fix this
    throw new UnsupportedOperationException ("Not yet implemented...");
  }

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                       // Gaussian variance on the sum of alphas
                       double featureVectorSizePoissonLambda,
                       double classInstanceCountPoissonLambda,
                       String[] classNames)
  {
    this (new SerialPipes (new Pipe[]  {
        new TokenSequence2FeatureSequence (),
        new FeatureSequence2FeatureVector (),
        new Target2Label()}));
    //classCentroidDistribution.print();
    Iterator<Instance> iter = new RandomTokenSequenceIterator (

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  static CRFExtractor hackCrfExtor (CRF crf)
  {
    Pipe[] newPipes = new Pipe [3];


    SerialPipes pipes = (SerialPipes) crf.getInputPipe ();
    for (int i = 0; i < 3; i++) {
      Pipe p0 = pipes.getPipe (0);
      //pipes.removePipe (0);  TODO Fix me
      //p0.setParent (null);
      newPipes[i] = p0;
    }


    Pipe tokPipe = new SerialPipes (newPipes);


    CRFExtractor extor = new CRFExtractor (crf, (Pipe)tokPipe);
    return extor;
  }

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  private static String[] doc1 =  { "Meet\nme\nat\n4\nPM\ntomorrow" };


  public static void testMultiTag ()
  {
    Pipe mtPipe = new SerialPipes (new Pipe[] {
            new SimpleTaggerSentence2TokenSequence (),
            new TokenText (),
            new RegexMatches ("digits", Pattern.compile ("[0-9]+")),
            new RegexMatches ("ampm", Pattern.compile ("[aApP][mM]")),
            new OffsetFeatureConjunction ("time",
                    new String[] { "digits", "ampm" },
                    new int[] { 0, 1 },
                    true),
            new PrintInputAndTarget (),
    });
    Pipe noMtPipe = new SerialPipes (new Pipe[] {
            new SimpleTaggerSentence2TokenSequence (),
            new TokenText (),
            new RegexMatches ("digits", Pattern.compile ("[0-9]+")),
            new RegexMatches ("ampm", Pattern.compile ("[aApP][mM]")),
            new OffsetFeatureConjunction ("time",

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    assertEquals (0.0, noMtTs.get (4).getFeatureValue ("time"), 1e-15);
  }


  public static void testMultiTagSerialization () throws IOException, ClassNotFoundException
  {
    Pipe origPipe = new SerialPipes (new Pipe[] {
            new SimpleTaggerSentence2TokenSequence (),
            new TokenText (),
            new RegexMatches ("digits", Pattern.compile ("[0-9]+")),
            new RegexMatches ("ampm", Pattern.compile ("[aApP][mM]")),
            new OffsetFeatureConjunction ("time",

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  public static Pipe concatenatePipes (Pipe p1, Pipe p2)
  {
    Alphabet dataDict = combinedDataDicts (p1, p2);
    Alphabet targetDict = combinedTargetDicts (p1, p2);
    Pipe ret = new SerialPipes (new Pipe[] { p1, p2 });


    if (dataDict != null) ret.dataAlphabetResolved = true;
    if (targetDict != null) ret.targetAlphabetResolved = true;
    
    ret.dataAlphabet = dataDict;

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