cc.mallet.types.Alphabet.lookupIndex()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中cc.mallet.types.Alphabet.lookupIndex()方法的一些代码示例，展示了Alphabet.lookupIndex()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Alphabet.lookupIndex()方法的具体详情如下：
包路径：cc.mallet.types.Alphabet
类名称：Alphabet
方法名：lookupIndex

Alphabet.lookupIndex介绍

[英]Return -1 if entry isn't present.
[中]如果条目不存在，则返回-1。

代码示例

代码示例来源：origin: de.julielab/jcore-mallet-2.0.9

  1. public Alphabet (Object[] entries) {
  2.   this (entries.length);
  3.   for (Object entry : entries)
  4.     this.lookupIndex(entry);
  5. }

代码示例来源：origin: cc.mallet/mallet

  1. public Alphabet (Object[] entries) {
  2.   this (entries.length);
  3.   for (Object entry : entries)
  4.     this.lookupIndex(entry);
  5. }

代码示例来源：origin: cc.mallet/mallet

  1. public Transducer.TransitionIterator transitionIterator (Object o)
  2. {
  3.   int inputIndex = inputAlphabet.lookupIndex (o, false);
  4.   if (inputIndex == -1)
  5.     throw new IllegalArgumentException ("Input not in dictionary.");
  6.   return transitionIterator (inputIndex);
  7. }

代码示例来源：origin: cc.mallet/mallet

  1. public double logProbability (Object key)
  2. {
  3.   if (dictionary == null)
  4.     throw new IllegalStateException ("This Multinomial has no dictionary.");
  5.   return logProbability (dictionary.lookupIndex (key));
  6. }

代码示例来源：origin: de.julielab/jcore-mallet-2.0.9

  1. public int location (Object entry)
  2. {
  3.   if (dictionary == null)
  4.     throw new IllegalStateException ("This FeatureVector has no dictionary.");
  5.   int i = dictionary.lookupIndex (entry, false);
  6.   if (i < 0)
  7.     return -1;
  8.   else
  9.     return location (i);
  10. }

代码示例来源：origin: de.julielab/jcore-mallet-2.0.9

  1. /** Load an alphabet from a file, one item per line */
  2. public static Alphabet loadFromFile(File alphabetFile) throws IOException {
  3.   BufferedReader reader = new BufferedReader(new FileReader(alphabetFile));
  4.   Alphabet alphabet = new Alphabet();
  5.   String item;
  6.   while ((item = reader.readLine()) != null) {
  7.     alphabet.lookupIndex(item);
  8.   }
  9.   
  10.   reader.close();
  11.   return alphabet;
  12. }

代码示例来源：origin: cc.mallet/mallet

  1. public void testReadResolve () throws IOException, ClassNotFoundException
  2. {
  3.  Alphabet dict = new Alphabet ();
  4.  dict.lookupIndex ("TEST1");
  5.  dict.lookupIndex ("TEST2");
  6.  dict.lookupIndex ("TEST3");
  7.  Alphabet dict2 = (Alphabet) TestSerializable.cloneViaSerialization (dict);
  8.  assertTrue (dict == dict2);
  9. }

代码示例来源：origin: cc.mallet/mallet

  1. /** Create a dummy alphabet with <code>n</code> dimensions */
  2. public static Alphabet alphabetOfSize (int n) {
  3.   Alphabet alphabet = new Alphabet();
  4.   for (int i = 0; i < n; i++) {
  5.     alphabet.lookupIndex("d" + i);
  6.   }
  7.   return alphabet;
  8. }

代码示例来源：origin: cc.mallet/mallet

  1. public boolean contains (Object o)
  2. {
  3.   int index = dictionary.lookupIndex (o, false);
  4.   if (index == -1)
  5.     return false;
  6.   return contains (index);
  7. }

代码示例来源：origin: cc.mallet/mallet

  1. private static Alphabet dictOfSize (int size)
  2. {
  3.   Alphabet ret = new Alphabet ();
  4.   for (int i = 0; i < size; i++)
  5.     ret.lookupIndex ("feature"+i);
  6.   return ret;
  7. }

代码示例来源：origin: cc.mallet/mallet

  1. public double probability (Object key)
  2. {
  3.   if (dictionary == null)
  4.     throw new IllegalStateException ("This Multinomial has no dictionary.");
  5.   return probability (dictionary.lookupIndex (key));
  6. }

代码示例来源：origin: com.github.steveash.mallet/mallet

  1. private static Alphabet dictOfSize (int n)
  2. {
  3.  Alphabet dict = new Alphabet ();
  4.  for (int i = 0; i < n; i++) {
  5.   dict.lookupIndex ("feature"+i);
  6.  }
  7.  return dict;
  8. }

代码示例来源：origin: com.github.steveash.mallet/mallet

  1. private static Alphabet dictOfSize (int size)
  2. {
  3.   Alphabet ret = new Alphabet ();
  4.   for (int i = 0; i < size; i++)
  5.     ret.lookupIndex ("feature"+i);
  6.   return ret;
  7. }

代码示例来源：origin: com.github.steveash.mallet/mallet

  1. private void expandDict (Alphabet fd, int size)
  2. {
  3.  fd.startGrowth ();
  4.  for (int i = 0; i < size; i++)
  5.   fd.lookupIndex ("feature"+i, true);
  6. }

代码示例来源：origin: com.github.steveash.mallet/mallet

  1. private static Alphabet dictOfSize (int size)
  2. {
  3.   Alphabet ret = new Alphabet ();
  4.   for (int i = 0; i < size; i++)
  5.     ret.lookupIndex ("feature"+i);
  6.   return ret;
  7. }

代码示例来源：origin: cc.mallet/mallet

  1. public void testSetRankOrder ()
  2. {
  3.   Alphabet v = new Alphabet ();
  4.   RankedFeatureVector rfv =
  5.     new RankedFeatureVector (v, new int[] {v.lookupIndex ("a"), v.lookupIndex ("b"), v.lookupIndex ("c"), v.lookupIndex ("d") },
  6.                             new double[] {3.0, 1.0, 2.0, 6.0});
  7.   System.out.println ("vector size ="+rfv.numLocations());
  8.   for (int i = 0; i < rfv.numLocations(); i++)
  9.     System.out.println ("Rank="+i+" value="+rfv.getValueAtRank(i));
  10. }

代码示例来源：origin: cc.mallet/mallet

  1. public Transducer.TransitionIterator transitionIterator (Sequence inputSequence,
  2.                                                          int inputPosition)
  3. {
  4.   int inputIndex = inputAlphabet.lookupIndex (inputSequence.get(inputPosition), false);
  5.   if (inputIndex == -1)
  6.     throw new IllegalArgumentException ("Input not in dictionary.");
  7.   return transitionIterator (inputIndex);
  8. }

代码示例来源：origin: com.github.steveash.mallet/mallet

  1. public Record (Alphabet fieldAlph, Alphabet valueAlph, String[][] vals) {
  2.   this(fieldAlph, valueAlph);
  3.   for (int i = 0; i < vals.length; i++) {
  4.     AugmentableFeatureVector afv = new AugmentableFeatureVector(valueAlph, false);
  5.     for (int j = 1; j < vals[i].length; j++)
  6.       afv.add(valueAlph.lookupIndex(vals[i][j]), 1.0);
  7.     field2values.put(fieldAlph.lookupIndex(vals[i][0]), afv.toFeatureVector());
  8.   }
  9. }

代码示例来源：origin: cc.mallet/mallet

  1. public Alphabet getPrunedAlphabet(int minDocs, int maxDocs, int minCount, int maxCount) {
  2.   Alphabet inputAlphabet = instances.getDataAlphabet();
  3.   Alphabet outputAlphabet = new Alphabet();
  4.   for (int inputType = 0; inputType < numFeatures; inputType++) {
  5.     if (featureCounts[inputType] >= minCount && featureCounts[inputType] <= maxCount && documentFrequencies[inputType] >= minDocs && documentFrequencies[inputType] <= maxDocs) {
  6.       outputAlphabet.lookupIndex(inputAlphabet.lookupObject(inputType));
  7.     }
  8.   }
  9.   
  10.   return outputAlphabet;
  11. }

代码示例来源：origin: cc.mallet/mallet

  1. public FeatureSequence toFeatureSequence (Alphabet dict) {
  2.   FeatureSequence fs = new FeatureSequence( dict, this.size() );
  3.   for (int i = 0; i < this.size(); i++)
  4.     fs.add (dict.lookupIndex( (this.get(i)).getText()));
  5.   return fs;
  6. }

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