Examples of StringRecordIterator

Examples of org.apache.mahout.common.iterator.StringRecordIterator

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    final Map<Set<String>,Long> results1 = Maps.newHashMap();

    String inputFilename = "FPGsynth.dat";
    int minSupport = 100;
    fp1.generateTopKFrequentPatterns(new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename).openStream()), "\\s+"),

                                     fp1.generateFList(new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename)
                                                                                                     .openStream()), "\\s+"), minSupport), minSupport, 1000000,
                                     returnableFeatures,
                                     new OutputCollector<String,List<Pair<List<String>,Long>>>() {
       
                                       @Override
                                         public void collect(String key, List<Pair<List<String>,Long>> value) {
         
                                         for (Pair<List<String>,Long> v : value) {
                                           List<String> l = v.getFirst();
                                           results1.put(Sets.newHashSet(l), v.getSecond());
                                           System.out.println("found pat ["+v.getSecond()+"]: "+ v.getFirst());
                                         }
                                       }
       
                                     }, new StatusUpdater() {
       
                                         @Override
                                           public void update(String status) {}
                                       });

    FPGrowthObj<String> fp2 = new FPGrowthObj<String>();
    final Map<Set<String>,Long> initialResults2 = Maps.newHashMap();
    fp2.generateTopKFrequentPatterns(new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename).openStream()), "\\s+"),

                                     fp2.generateFList(new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename)
                                                                                                     .openStream()), "\\s+"), minSupport), minSupport, 1000000,
                                     Sets.<String>newHashSet(),
                                     new OutputCollector<String,List<Pair<List<String>,Long>>>() {
       
                                       @Override
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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      FPGrowth<String> fp1 = new org.apache.mahout.fpm.pfpgrowth.fpgrowth.FPGrowth<String>();

    Map<Set<String>,Long> results1 = Maps.newHashMap();
   
    fp1.generateTopKFrequentPatterns(
      new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename).openStream()), "\\s+"),

      fp1.generateFList(new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename)
           .openStream()), "\\s+"), minSupport), minSupport, 100000,
      returnableFeatures,
      new MapCollector(results1), new DummyUpdater());

    FPGrowthObj<String> fp2 = new FPGrowthObj<String>();
    Map<Set<String>,Long> initialResults2 = Maps.newHashMap();
    fp2.generateTopKFrequentPatterns(
      new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename).openStream()), "\\s+"),

      fp2.generateFList(new StringRecordIterator(new FileLineIterable(Resources.getResource(inputFilename)
           .openStream()), "\\s+"), minSupport), minSupport, 100000,
        Sets.<String>newHashSet(),
      new MapCollector(initialResults2), new DummyUpdater());

    Map<Set<String>, Long> results2;
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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  @Test
  public void testSpecificCaseFromRetailDataMinSup500() throws IOException {
    FPGrowth<String> fp = new FPGrowth<String>();
   
    StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
      "retail.dat").openStream()), "\\s+");
    int pattern_41_36_39 = 0;
    while (it.hasNext()) {
      Pair<List<String>,Long> next = it.next();
      List<String> items = next.getFirst();
      if (items.contains("41") && items.contains("36") && items.contains("39")) {
        pattern_41_36_39++;
      }
    }
   
    final Map<Set<String>,Long> results = Maps.newHashMap();
   
    Set<String> returnableFeatures = Sets.newHashSet();
    returnableFeatures.add("41");
    returnableFeatures.add("36");
    returnableFeatures.add("39");
   
    fp.generateTopKFrequentPatterns(
      new StringRecordIterator(new FileLineIterable(Resources.getResource("retail.dat").openStream()), "\\s+"),

      fp.generateFList(new StringRecordIterator(new FileLineIterable(Resources.getResource("retail.dat")
          .openStream()), "\\s+"), 500), 500, 1000, returnableFeatures,
      new OutputCollector<String,List<Pair<List<String>,Long>>>() {
       
        @Override
        public void collect(String key, List<Pair<List<String>,Long>> value) {
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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    File input = new File(inputDir, "test.txt");
    params.set(PFPGrowth.INPUT, input.getAbsolutePath());
    params.set(PFPGrowth.OUTPUT, outputDir.getAbsolutePath());
    Writer writer = Files.newWriter(input, Charsets.UTF_8);
    try {
      StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
        "retail.dat").openStream()), "\\s+");
      Collection<List<String>> transactions = Lists.newArrayList();
     
      while (it.hasNext()) {
        Pair<List<String>,Long> next = it.next();
        transactions.add(next.getFirst());
      }
     
      for (List<String> transaction : transactions) {
        String sep = "";
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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  /**
   * Test Parallel FPGrowth on retail data using top-level runPFPGrowth() method
   */
  @Test
  public void testRetailDataMinSup100() throws Exception {
    StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
      "retail_results_with_min_sup_100.dat").openStream()), "\\s+");
    Map<Set<String>,Long> expectedResults = Maps.newHashMap();
    while (it.hasNext()) {
      Pair<List<String>,Long> next = it.next();
      List<String> items = Lists.newArrayList(next.getFirst());
      String supportString = items.remove(items.size() - 1);
      Long support = Long.parseLong(supportString.substring(1, supportString.length() - 1));
      expectedResults.put(Sets.newHashSet(items), support);
    }
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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  /**
   * Test Parallel FPG on retail data, running various stages individually
   */
  @Test
  public void testRetailDataMinSup100InSteps() throws Exception {
    StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
      "retail_results_with_min_sup_100.dat").openStream()), "\\s+");   
    Map<Set<String>,Long> expectedResults = Maps.newHashMap();
    while (it.hasNext()) {
      Pair<List<String>,Long> next = it.next();
      List<String> items = Lists.newArrayList(next.getFirst());
      String supportString = items.remove(items.size() - 1);
      Long support = Long.parseLong(supportString.substring(1, supportString.length() - 1));
      expectedResults.put(Sets.newHashSet(items), support);
    }
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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    params.set(PFPGrowth.INPUT, input.getAbsolutePath());
    params.set(PFPGrowth.OUTPUT, outputDir.getAbsolutePath());

    Writer writer = Files.newWriter(input, Charsets.UTF_8);
    try {
      StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
        "retail.dat").openStream()), "\\s+");
      Collection<List<String>> transactions = Lists.newArrayList();
     
      while (it.hasNext()) {
        Pair<List<String>,Long> next = it.next();
        transactions.add(next.getFirst());
      }
     
      for (List<String> transaction : transactions) {
        String sep = "";
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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  /**
   * Test Parallel FPGrowth on retail data using top-level runPFPGrowth() method
   */
  @Test
  public void testRetailDataMinSup100() throws Exception {
    StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
      "retail_results_with_min_sup_100.dat").openStream()), "\\s+");
    Map<Set<String>,Long> expectedResults = Maps.newHashMap();
    while (it.hasNext()) {
      Pair<List<String>,Long> next = it.next();
      List<String> items = Lists.newArrayList(next.getFirst());
      String supportString = items.remove(items.size() - 1);
      Long support = Long.parseLong(supportString.substring(1, supportString.length() - 1));
      expectedResults.put(Sets.newHashSet(items), support);
    }
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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  /**
   * Test Parallel FPG on retail data, running various stages individually
   */
  @Test
  public void testRetailDataMinSup100InSteps() throws Exception {
    StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
      "retail_results_with_min_sup_100.dat").openStream()), "\\s+");  
    Map<Set<String>,Long> expectedResults = Maps.newHashMap();
    while (it.hasNext()) {
      Pair<List<String>,Long> next = it.next();
      List<String> items = Lists.newArrayList(next.getFirst());
      String supportString = items.remove(items.size() - 1);
      Long support = Long.parseLong(supportString.substring(1, supportString.length() - 1));
      expectedResults.put(Sets.newHashSet(items), support);
    }
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Examples of org.apache.mahout.common.iterator.StringRecordIterator

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    File input = new File(inputDir, "test.txt");
    params.set(PFPGrowth.INPUT, input.getAbsolutePath());
    params.set(PFPGrowth.OUTPUT, outputDir.getAbsolutePath());
    Writer writer = Files.newWriter(input, Charsets.UTF_8);
    try {
      StringRecordIterator it = new StringRecordIterator(new FileLineIterable(Resources.getResource(
        "retail.dat").openStream()), "\\s+");
      Collection<List<String>> transactions = new ArrayList<List<String>>();
     
      while (it.hasNext()) {
        Pair<List<String>,Long> next = it.next();
        transactions.add(next.getFirst());
      }
     
      for (List<String> transaction : transactions) {
        String sep = "";
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