package edu.stanford.nlp.parser.dvparser;
import java.io.ObjectInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import java.util.regex.Pattern;
import org.ejml.simple.SimpleMatrix;
import org.ejml.data.DenseMatrix64F;
import edu.stanford.nlp.neural.Embedding;
import edu.stanford.nlp.neural.NeuralUtils;
import edu.stanford.nlp.parser.lexparser.BinaryGrammar;
import edu.stanford.nlp.parser.lexparser.BinaryRule;
import edu.stanford.nlp.parser.lexparser.Options;
import edu.stanford.nlp.parser.lexparser.UnaryGrammar;
import edu.stanford.nlp.parser.lexparser.UnaryRule;
import edu.stanford.nlp.trees.Tree;
import java.util.function.Function;
import edu.stanford.nlp.util.Generics;
import edu.stanford.nlp.util.Index;
import edu.stanford.nlp.util.Pair;
import edu.stanford.nlp.util.TwoDimensionalMap;
import edu.stanford.nlp.util.TwoDimensionalSet;
public class DVModel implements Serializable {
// Maps from basic category to the matrix transformation matrices for
// binary nodes and unary nodes.
// The indices are the children categories. For binaryTransform, for
// example, we have a matrix for each type of child that appears.
public TwoDimensionalMap<String, String, SimpleMatrix> binaryTransform;
public Map<String, SimpleMatrix> unaryTransform;
// score matrices for each node type
public TwoDimensionalMap<String, String, SimpleMatrix> binaryScore;
public Map<String, SimpleMatrix> unaryScore;
public Map<String, SimpleMatrix> wordVectors;
// cache these for easy calculation of "theta" parameter size
int numBinaryMatrices, numUnaryMatrices;
int binaryTransformSize, unaryTransformSize;
int binaryScoreSize, unaryScoreSize;
Options op;
final int numCols;
final int numRows;
// we just keep this here for convenience
transient SimpleMatrix identity;
// the seed we used to use was 19580427
Random rand;
static final String UNKNOWN_WORD = "*UNK*";
static final String UNKNOWN_NUMBER = "*NUM*";
static final String UNKNOWN_CAPS = "*CAPS*";
static final String UNKNOWN_CHINESE_YEAR = "*ZH_YEAR*";
static final String UNKNOWN_CHINESE_NUMBER = "*ZH_NUM*";
static final String UNKNOWN_CHINESE_PERCENT = "*ZH_PERCENT*";
static final String START_WORD = "*START*";
static final String END_WORD = "*END*";
private static final Function<SimpleMatrix, DenseMatrix64F> convertSimpleMatrix = matrix -> matrix.getMatrix();
private static final Function<DenseMatrix64F, SimpleMatrix> convertDenseMatrix = matrix -> SimpleMatrix.wrap(matrix);
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
identity = SimpleMatrix.identity(numRows);
}
/**
* @param op the parameters of the parser
*/
public DVModel(Options op, Index<String> stateIndex, UnaryGrammar unaryGrammar, BinaryGrammar binaryGrammar) {
this.op = op;
rand = new Random(op.trainOptions.randomSeed);
readWordVectors();
// Binary matrices will be n*2n+1, unary matrices will be n*n+1
numRows = op.lexOptions.numHid;
numCols = op.lexOptions.numHid;
// Build one matrix for each basic category.
// We assume that each state that has the same basic
// category is using the same transformation matrix.
// Use TreeMap for because we want values to be
// sorted by key later on when building theta vectors
binaryTransform = TwoDimensionalMap.treeMap();
unaryTransform = Generics.newTreeMap();
binaryScore = TwoDimensionalMap.treeMap();
unaryScore = Generics.newTreeMap();
numBinaryMatrices = 0;
numUnaryMatrices = 0;
binaryTransformSize = numRows * (numCols * 2 + 1);
unaryTransformSize = numRows * (numCols + 1);
binaryScoreSize = numCols;
unaryScoreSize = numCols;
if (op.trainOptions.useContextWords) {
binaryTransformSize += numRows * numCols * 2;
unaryTransformSize += numRows * numCols * 2;
}
identity = SimpleMatrix.identity(numRows);
for (UnaryRule unaryRule : unaryGrammar) {
// only make one matrix for each parent state, and only use the
// basic category for that
String childState = stateIndex.get(unaryRule.child);
String childBasic = basicCategory(childState);
addRandomUnaryMatrix(childBasic);
}
for (BinaryRule binaryRule : binaryGrammar) {
// only make one matrix for each parent state, and only use the
// basic category for that
String leftState = stateIndex.get(binaryRule.leftChild);
String leftBasic = basicCategory(leftState);
String rightState = stateIndex.get(binaryRule.rightChild);
String rightBasic = basicCategory(rightState);
addRandomBinaryMatrix(leftBasic, rightBasic);
}
}
public DVModel(TwoDimensionalMap<String, String, SimpleMatrix> binaryTransform, Map<String, SimpleMatrix> unaryTransform,
TwoDimensionalMap<String, String, SimpleMatrix> binaryScore, Map<String, SimpleMatrix> unaryScore,
Map<String, SimpleMatrix> wordVectors, Options op) {
this.op = op;
this.binaryTransform = binaryTransform;
this.unaryTransform = unaryTransform;
this.binaryScore = binaryScore;
this.unaryScore = unaryScore;
this.wordVectors = wordVectors;
this.numBinaryMatrices = binaryTransform.size();
this.numUnaryMatrices = unaryTransform.size();
if (numBinaryMatrices > 0) {
this.binaryTransformSize = binaryTransform.iterator().next().getValue().getNumElements();
this.binaryScoreSize = binaryScore.iterator().next().getValue().getNumElements();
} else {
this.binaryTransformSize = 0;
this.binaryScoreSize = 0;
}
if (numUnaryMatrices > 0) {
this.unaryTransformSize = unaryTransform.values().iterator().next().getNumElements();
this.unaryScoreSize = unaryScore.values().iterator().next().getNumElements();
} else {
this.unaryTransformSize = 0;
this.unaryScoreSize = 0;
}
this.numRows = op.lexOptions.numHid;
this.numCols = op.lexOptions.numHid;
this.identity = SimpleMatrix.identity(numRows);
this.rand = new Random(op.trainOptions.randomSeed);
}
/**
* Creates a random context matrix. This will be numRows x
* 2*numCols big. These can be appended to the end of either a
* unary or binary transform matrix to get the transform matrix
* which uses context words.
*/
private SimpleMatrix randomContextMatrix() {
SimpleMatrix matrix = new SimpleMatrix(numRows, numCols * 2);
matrix.insertIntoThis(0, 0, identity.scale(op.trainOptions.scalingForInit * 0.1));
matrix.insertIntoThis(0, numCols, identity.scale(op.trainOptions.scalingForInit * 0.1));
matrix = matrix.plus(SimpleMatrix.random(numRows,numCols * 2,-1.0/Math.sqrt((double)numCols * 100.0),1.0/Math.sqrt((double)numCols * 100.0),rand));
return matrix;
}
/**
* Create a random transform matrix based on the initialization
* parameters. This will be numRows x numCols big. These can be
* plugged into either unary or binary transform matrices.
*/
private SimpleMatrix randomTransformMatrix() {
SimpleMatrix matrix;
switch (op.trainOptions.transformMatrixType) {
case DIAGONAL:
matrix = SimpleMatrix.random(numRows,numCols,-1.0/Math.sqrt((double)numCols * 100.0),1.0/Math.sqrt((double)numCols * 100.0),rand).plus(identity);
break;
case RANDOM:
matrix = SimpleMatrix.random(numRows,numCols,-1.0/Math.sqrt((double)numCols),1.0/Math.sqrt((double)numCols),rand);
break;
case OFF_DIAGONAL:
matrix = SimpleMatrix.random(numRows,numCols,-1.0/Math.sqrt((double)numCols * 100.0),1.0/Math.sqrt((double)numCols * 100.0),rand).plus(identity);
for (int i = 0; i < numCols; ++i) {
int x = rand.nextInt(numCols);
int y = rand.nextInt(numCols);
int scale = rand.nextInt(3) - 1; // -1, 0, or 1
matrix.set(x, y, matrix.get(x, y) + scale);
}
break;
case RANDOM_ZEROS:
matrix = SimpleMatrix.random(numRows,numCols,-1.0/Math.sqrt((double)numCols * 100.0),1.0/Math.sqrt((double)numCols * 100.0),rand).plus(identity);
for (int i = 0; i < numCols; ++i) {
int x = rand.nextInt(numCols);
int y = rand.nextInt(numCols);
matrix.set(x, y, 0.0);
}
break;
default:
throw new IllegalArgumentException("Unexpected matrix initialization type " + op.trainOptions.transformMatrixType);
}
return matrix;
}
public void addRandomUnaryMatrix(String childBasic) {
if (unaryTransform.get(childBasic) != null) {
return;
}
++numUnaryMatrices;
// scoring matrix
SimpleMatrix score = SimpleMatrix.random(1, numCols, -1.0/Math.sqrt((double)numCols),1.0/Math.sqrt((double)numCols),rand);
unaryScore.put(childBasic, score.scale(op.trainOptions.scalingForInit));
SimpleMatrix transform;
if (op.trainOptions.useContextWords) {
transform = new SimpleMatrix(numRows, numCols * 3 + 1);
// leave room for bias term
transform.insertIntoThis(0,numCols + 1, randomContextMatrix());
} else {
transform = new SimpleMatrix(numRows, numCols + 1);
}
SimpleMatrix unary = randomTransformMatrix();
transform.insertIntoThis(0, 0, unary);
unaryTransform.put(childBasic, transform.scale(op.trainOptions.scalingForInit));
}
public void addRandomBinaryMatrix(String leftBasic, String rightBasic) {
if (binaryTransform.get(leftBasic, rightBasic) != null) {
return;
}
++numBinaryMatrices;
// scoring matrix
SimpleMatrix score = SimpleMatrix.random(1, numCols, -1.0/Math.sqrt((double)numCols),1.0/Math.sqrt((double)numCols),rand);
binaryScore.put(leftBasic, rightBasic, score.scale(op.trainOptions.scalingForInit));
SimpleMatrix binary;
if (op.trainOptions.useContextWords) {
binary = new SimpleMatrix(numRows, numCols * 4 + 1);
// leave room for bias term
binary.insertIntoThis(0,numCols*2+1, randomContextMatrix());
} else {
binary = new SimpleMatrix(numRows, numCols * 2 + 1);
}
SimpleMatrix left = randomTransformMatrix();
SimpleMatrix right = randomTransformMatrix();
binary.insertIntoThis(0, 0, left);
binary.insertIntoThis(0, numCols, right);
binaryTransform.put(leftBasic, rightBasic, binary.scale(op.trainOptions.scalingForInit));
}
public void setRulesForTrainingSet(List<Tree> sentences, Map<Tree, byte[]> compressedTrees) {
TwoDimensionalSet<String, String> binaryRules = TwoDimensionalSet.treeSet();
Set<String> unaryRules = new HashSet<String>();
Set<String> words = new HashSet<String>();
for (Tree sentence : sentences) {
searchRulesForBatch(binaryRules, unaryRules, words, sentence);
for (Tree hypothesis : CacheParseHypotheses.convertToTrees(compressedTrees.get(sentence))) {
searchRulesForBatch(binaryRules, unaryRules, words, hypothesis);
}
}
for (Pair<String, String> binary : binaryRules) {
addRandomBinaryMatrix(binary.first, binary.second);
}
for (String unary : unaryRules) {
addRandomUnaryMatrix(unary);
}
filterRulesForBatch(binaryRules, unaryRules, words);
}
/**
* Filters the transform and score rules so that we only have the
* ones which appear in the trees given
*/
public void filterRulesForBatch(Collection<Tree> trees) {
TwoDimensionalSet<String, String> binaryRules = TwoDimensionalSet.treeSet();
Set<String> unaryRules = new HashSet<String>();
Set<String> words = new HashSet<String>();
for (Tree tree : trees) {
searchRulesForBatch(binaryRules, unaryRules, words, tree);
}
filterRulesForBatch(binaryRules, unaryRules, words);
}
public void filterRulesForBatch(Map<Tree, byte[]> compressedTrees) {
TwoDimensionalSet<String, String> binaryRules = TwoDimensionalSet.treeSet();
Set<String> unaryRules = new HashSet<String>();
Set<String> words = new HashSet<String>();
for (Map.Entry<Tree, byte[]> entry : compressedTrees.entrySet()) {
searchRulesForBatch(binaryRules, unaryRules, words, entry.getKey());
for (Tree hypothesis : CacheParseHypotheses.convertToTrees(entry.getValue())) {
searchRulesForBatch(binaryRules, unaryRules, words, hypothesis);
}
}
filterRulesForBatch(binaryRules, unaryRules, words);
}
public void filterRulesForBatch(TwoDimensionalSet<String, String> binaryRules, Set<String> unaryRules, Set<String> words) {
TwoDimensionalMap<String, String, SimpleMatrix> newBinaryTransforms = TwoDimensionalMap.treeMap();
TwoDimensionalMap<String, String, SimpleMatrix> newBinaryScores = TwoDimensionalMap.treeMap();
for (Pair<String, String> binaryRule : binaryRules) {
SimpleMatrix transform = binaryTransform.get(binaryRule.first(), binaryRule.second());
if (transform != null) {
newBinaryTransforms.put(binaryRule.first(), binaryRule.second(), transform);
}
SimpleMatrix score = binaryScore.get(binaryRule.first(), binaryRule.second());
if (score != null) {
newBinaryScores.put(binaryRule.first(), binaryRule.second(), score);
}
if ((transform == null && score != null) ||
(transform != null && score == null)) {
throw new AssertionError();
}
}
binaryTransform = newBinaryTransforms;
binaryScore = newBinaryScores;
numBinaryMatrices = binaryTransform.size();
Map<String, SimpleMatrix> newUnaryTransforms = Generics.newTreeMap();
Map<String, SimpleMatrix> newUnaryScores = Generics.newTreeMap();
for (String unaryRule : unaryRules) {
SimpleMatrix transform = unaryTransform.get(unaryRule);
if (transform != null) {
newUnaryTransforms.put(unaryRule, transform);
}
SimpleMatrix score = unaryScore.get(unaryRule);
if (score != null) {
newUnaryScores.put(unaryRule, score);
}
if ((transform == null && score != null) ||
(transform != null && score == null)) {
throw new AssertionError();
}
}
unaryTransform = newUnaryTransforms;
unaryScore = newUnaryScores;
numUnaryMatrices = unaryTransform.size();
Map<String, SimpleMatrix> newWordVectors = Generics.newTreeMap();
for (String word : words) {
SimpleMatrix wordVector = wordVectors.get(word);
if (wordVector != null) {
newWordVectors.put(word, wordVector);
}
}
wordVectors = newWordVectors;
}
private void searchRulesForBatch(TwoDimensionalSet<String, String> binaryRules,
Set<String> unaryRules, Set<String> words,
Tree tree) {
if (tree.isLeaf()) {
return;
}
if (tree.isPreTerminal()) {
words.add(getVocabWord(tree.children()[0].value()));
return;
}
Tree[] children = tree.children();
if (children.length == 1) {
unaryRules.add(basicCategory(children[0].value()));
searchRulesForBatch(binaryRules, unaryRules, words, children[0]);
} else if (children.length == 2) {
binaryRules.add(basicCategory(children[0].value()),
basicCategory(children[1].value()));
searchRulesForBatch(binaryRules, unaryRules, words, children[0]);
searchRulesForBatch(binaryRules, unaryRules, words, children[1]);
} else {
throw new AssertionError("Expected a binarized tree");
}
}
public String basicCategory(String category) {
if (op.trainOptions.dvSimplifiedModel) {
return "";
} else {
String basic = op.langpack().basicCategory(category);
// TODO: if we can figure out what is going on with the grammar
// compaction, perhaps we don't want this any more
if (basic.length() > 0 && basic.charAt(0) == '@') {
basic = basic.substring(1);
}
return basic;
}
}
static final Pattern NUMBER_PATTERN = Pattern.compile("-?[0-9][-0-9,.:]*");
static final Pattern CAPS_PATTERN = Pattern.compile("[a-zA-Z]*[A-Z][a-zA-Z]*");
static final Pattern CHINESE_YEAR_PATTERN = Pattern.compile("[〇零一二三四五六七八九０１２３４５６７８９]{4}+年");
static final Pattern CHINESE_NUMBER_PATTERN = Pattern.compile("(?:[〇０零一二三四五六七八九０１２３４５６７８９十百万千亿]+[点多]?)+");
static final Pattern CHINESE_PERCENT_PATTERN = Pattern.compile("百分之[〇０零一二三四五六七八九０１２３４５６７８９十点]+");
/**
* Some word vectors are trained with DG representing number.
* We mix all of those into the unknown number vectors.
*/
static final Pattern DG_PATTERN = Pattern.compile(".*DG.*");
public void readWordVectors() {
SimpleMatrix unknownNumberVector = null;
SimpleMatrix unknownCapsVector = null;
SimpleMatrix unknownChineseYearVector = null;
SimpleMatrix unknownChineseNumberVector = null;
SimpleMatrix unknownChinesePercentVector = null;
wordVectors = Generics.newTreeMap();
int numberCount = 0;
int capsCount = 0;
int chineseYearCount = 0;
int chineseNumberCount = 0;
int chinesePercentCount = 0;
//Map<String, SimpleMatrix> rawWordVectors = NeuralUtils.readRawWordVectors(op.lexOptions.wordVectorFile, op.lexOptions.numHid);
Embedding rawWordVectors = new Embedding(op.lexOptions.wordVectorFile, op.lexOptions.numHid);
for (String word : rawWordVectors.keySet()) {
SimpleMatrix vector = rawWordVectors.get(word);
if (op.wordFunction != null) {
word = op.wordFunction.apply(word);
}
wordVectors.put(word, vector);
if (op.lexOptions.numHid <= 0) {
op.lexOptions.numHid = vector.getNumElements();
}
// TODO: factor out all of these identical blobs
if (op.trainOptions.unknownNumberVector &&
(NUMBER_PATTERN.matcher(word).matches() || DG_PATTERN.matcher(word).matches())) {
++numberCount;
if (unknownNumberVector == null) {
unknownNumberVector = new SimpleMatrix(vector);
} else {
unknownNumberVector = unknownNumberVector.plus(vector);
}
}
if (op.trainOptions.unknownCapsVector && CAPS_PATTERN.matcher(word).matches()) {
++capsCount;
if (unknownCapsVector == null) {
unknownCapsVector = new SimpleMatrix(vector);
} else {
unknownCapsVector = unknownCapsVector.plus(vector);
}
}
if (op.trainOptions.unknownChineseYearVector && CHINESE_YEAR_PATTERN.matcher(word).matches()) {
++chineseYearCount;
if (unknownChineseYearVector == null) {
unknownChineseYearVector = new SimpleMatrix(vector);
} else {
unknownChineseYearVector = unknownChineseYearVector.plus(vector);
}
}
if (op.trainOptions.unknownChineseNumberVector &&
(CHINESE_NUMBER_PATTERN.matcher(word).matches() || DG_PATTERN.matcher(word).matches())) {
++chineseNumberCount;
if (unknownChineseNumberVector == null) {
unknownChineseNumberVector = new SimpleMatrix(vector);
} else {
unknownChineseNumberVector = unknownChineseNumberVector.plus(vector);
}
}
if (op.trainOptions.unknownChinesePercentVector && CHINESE_PERCENT_PATTERN.matcher(word).matches()) {
++chinesePercentCount;
if (unknownChinesePercentVector == null) {
unknownChinesePercentVector = new SimpleMatrix(vector);
} else {
unknownChinesePercentVector = unknownChinesePercentVector.plus(vector);
}
}
}
String unkWord = op.trainOptions.unkWord;
if (op.wordFunction != null) {
unkWord = op.wordFunction.apply(unkWord);
}
SimpleMatrix unknownWordVector = wordVectors.get(unkWord);
wordVectors.put(UNKNOWN_WORD, unknownWordVector);
if (unknownWordVector == null) {
throw new RuntimeException("Unknown word vector not specified in the word vector file");
}
if (op.trainOptions.unknownNumberVector) {
if (numberCount > 0) {
unknownNumberVector = unknownNumberVector.divide(numberCount);
} else {
unknownNumberVector = new SimpleMatrix(unknownWordVector);
}
wordVectors.put(UNKNOWN_NUMBER, unknownNumberVector);
}
if (op.trainOptions.unknownCapsVector) {
if (capsCount > 0) {
unknownCapsVector = unknownCapsVector.divide(capsCount);
} else {
unknownCapsVector = new SimpleMatrix(unknownWordVector);
}
wordVectors.put(UNKNOWN_CAPS, unknownCapsVector);
}
if (op.trainOptions.unknownChineseYearVector) {
System.err.println("Matched " + chineseYearCount + " chinese year vectors");
if (chineseYearCount > 0) {
unknownChineseYearVector = unknownChineseYearVector.divide(chineseYearCount);
} else {
unknownChineseYearVector = new SimpleMatrix(unknownWordVector);
}
wordVectors.put(UNKNOWN_CHINESE_YEAR, unknownChineseYearVector);
}
if (op.trainOptions.unknownChineseNumberVector) {
System.err.println("Matched " + chineseNumberCount + " chinese number vectors");
if (chineseNumberCount > 0) {
unknownChineseNumberVector = unknownChineseNumberVector.divide(chineseNumberCount);
} else {
unknownChineseNumberVector = new SimpleMatrix(unknownWordVector);
}
wordVectors.put(UNKNOWN_CHINESE_NUMBER, unknownChineseNumberVector);
}
if (op.trainOptions.unknownChinesePercentVector) {
System.err.println("Matched " + chinesePercentCount + " chinese percent vectors");
if (chinesePercentCount > 0) {
unknownChinesePercentVector = unknownChinesePercentVector.divide(chinesePercentCount);
} else {
unknownChinesePercentVector = new SimpleMatrix(unknownWordVector);
}
wordVectors.put(UNKNOWN_CHINESE_PERCENT, unknownChinesePercentVector);
}
if (op.trainOptions.useContextWords) {
SimpleMatrix start = SimpleMatrix.random(op.lexOptions.numHid, 1, -0.5, 0.5, rand);
SimpleMatrix end = SimpleMatrix.random(op.lexOptions.numHid, 1, -0.5, 0.5, rand);
wordVectors.put(START_WORD, start);
wordVectors.put(END_WORD, end);
}
}
public int totalParamSize() {
int totalSize = 0;
totalSize += numBinaryMatrices * (binaryTransformSize + binaryScoreSize);
totalSize += numUnaryMatrices * (unaryTransformSize + unaryScoreSize);
if (op.trainOptions.trainWordVectors) {
totalSize += wordVectors.size() * op.lexOptions.numHid;
}
return totalSize;
}
@SuppressWarnings("unchecked")
public double[] paramsToVector(double scale) {
int totalSize = totalParamSize();
if (op.trainOptions.trainWordVectors) {
return NeuralUtils.paramsToVector(scale, totalSize,
binaryTransform.valueIterator(), unaryTransform.values().iterator(),
binaryScore.valueIterator(), unaryScore.values().iterator(),
wordVectors.values().iterator());
} else {
return NeuralUtils.paramsToVector(scale, totalSize,
binaryTransform.valueIterator(), unaryTransform.values().iterator(),
binaryScore.valueIterator(), unaryScore.values().iterator());
}
}
@SuppressWarnings("unchecked")
public double[] paramsToVector() {
int totalSize = totalParamSize();
if (op.trainOptions.trainWordVectors) {
return NeuralUtils.paramsToVector(totalSize,
binaryTransform.valueIterator(), unaryTransform.values().iterator(),
binaryScore.valueIterator(), unaryScore.values().iterator(),
wordVectors.values().iterator());
} else {
return NeuralUtils.paramsToVector(totalSize,
binaryTransform.valueIterator(), unaryTransform.values().iterator(),
binaryScore.valueIterator(), unaryScore.values().iterator());
}
}
@SuppressWarnings("unchecked")
public void vectorToParams(double[] theta) {
if (op.trainOptions.trainWordVectors) {
NeuralUtils.vectorToParams(theta,
binaryTransform.valueIterator(), unaryTransform.values().iterator(),
binaryScore.valueIterator(), unaryScore.values().iterator(),
wordVectors.values().iterator());
} else {
NeuralUtils.vectorToParams(theta,
binaryTransform.valueIterator(), unaryTransform.values().iterator(),
binaryScore.valueIterator(), unaryScore.values().iterator());
}
}
public SimpleMatrix getWForNode(Tree node) {
if (node.children().length == 1) {
String childLabel = node.children()[0].value();
String childBasic = basicCategory(childLabel);
return unaryTransform.get(childBasic);
} else if (node.children().length == 2) {
String leftLabel = node.children()[0].value();
String leftBasic = basicCategory(leftLabel);
String rightLabel = node.children()[1].value();
String rightBasic = basicCategory(rightLabel);
return binaryTransform.get(leftBasic, rightBasic);
}
throw new AssertionError("Should only have unary or binary nodes");
}
public SimpleMatrix getScoreWForNode(Tree node) {
if (node.children().length == 1) {
String childLabel = node.children()[0].value();
String childBasic = basicCategory(childLabel);
return unaryScore.get(childBasic);
} else if (node.children().length == 2) {
String leftLabel = node.children()[0].value();
String leftBasic = basicCategory(leftLabel);
String rightLabel = node.children()[1].value();
String rightBasic = basicCategory(rightLabel);
return binaryScore.get(leftBasic, rightBasic);
}
throw new AssertionError("Should only have unary or binary nodes");
}
public SimpleMatrix getStartWordVector() {
return wordVectors.get(START_WORD);
}
public SimpleMatrix getEndWordVector() {
return wordVectors.get(END_WORD);
}
public SimpleMatrix getWordVector(String word) {
return wordVectors.get(getVocabWord(word));
}
public String getVocabWord(String word) {
if (op.wordFunction != null) {
word = op.wordFunction.apply(word);
}
if (op.trainOptions.lowercaseWordVectors) {
word = word.toLowerCase();
}
if (wordVectors.containsKey(word)) {
return word;
}
//System.err.println("Unknown word: [" + word + "]");
if (op.trainOptions.unknownNumberVector && NUMBER_PATTERN.matcher(word).matches()) {
return UNKNOWN_NUMBER;
}
if (op.trainOptions.unknownCapsVector && CAPS_PATTERN.matcher(word).matches()) {
return UNKNOWN_CAPS;
}
if (op.trainOptions.unknownChineseYearVector && CHINESE_YEAR_PATTERN.matcher(word).matches()) {
return UNKNOWN_CHINESE_YEAR;
}
if (op.trainOptions.unknownChineseNumberVector && CHINESE_NUMBER_PATTERN.matcher(word).matches()) {
return UNKNOWN_CHINESE_NUMBER;
}
if (op.trainOptions.unknownChinesePercentVector && CHINESE_PERCENT_PATTERN.matcher(word).matches()) {
return UNKNOWN_CHINESE_PERCENT;
}
if (op.trainOptions.unknownDashedWordVectors) {
int index = word.lastIndexOf('-');
if (index >= 0 && index < word.length()) {
String lastPiece = word.substring(index + 1);
String wv = getVocabWord(lastPiece);
if (wv != null) {
return wv;
}
}
}
return UNKNOWN_WORD;
}
public SimpleMatrix getUnknownWordVector() {
return wordVectors.get(UNKNOWN_WORD);
}
public void printMatrixNames(PrintStream out) {
out.println("Binary matrices:");
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> binary : binaryTransform) {
out.println(" " + binary.getFirstKey() + ":" + binary.getSecondKey());
}
out.println("Unary matrices:");
for (String unary : unaryTransform.keySet()) {
out.println(" " + unary);
}
}
public void printMatrixStats(PrintStream out) {
System.err.println("Model loaded with " + numUnaryMatrices + " unary and " + numBinaryMatrices + " binary");
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> binary : binaryTransform) {
out.println("Binary transform " + binary.getFirstKey() + ":" + binary.getSecondKey());
double normf = binary.getValue().normF();
out.println(" Total norm " + (normf * normf));
normf = binary.getValue().extractMatrix(0, op.lexOptions.numHid, 0, op.lexOptions.numHid).normF();
out.println(" Left norm (" + binary.getFirstKey() + ") " + (normf * normf));
normf = binary.getValue().extractMatrix(0, op.lexOptions.numHid, op.lexOptions.numHid, op.lexOptions.numHid*2).normF();
out.println(" Right norm (" + binary.getSecondKey() + ") " + (normf * normf));
}
}
public void printAllMatrices(PrintStream out) {
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> binary : binaryTransform) {
out.println("Binary transform " + binary.getFirstKey() + ":" + binary.getSecondKey());
out.println(binary.getValue());
}
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> binary : binaryScore) {
out.println("Binary score " + binary.getFirstKey() + ":" + binary.getSecondKey());
out.println(binary.getValue());
}
for (Map.Entry<String, SimpleMatrix> unary : unaryTransform.entrySet()) {
out.println("Unary transform " + unary.getKey());
out.println(unary.getValue());
}
for (Map.Entry<String, SimpleMatrix> unary : unaryScore.entrySet()) {
out.println("Unary score " + unary.getKey());
out.println(unary.getValue());
}
}
public int binaryTransformIndex(String leftChild, String rightChild) {
int pos = 0;
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> binary : binaryTransform) {
if (binary.getFirstKey().equals(leftChild) && binary.getSecondKey().equals(rightChild)) {
return pos;
}
pos += binary.getValue().getNumElements();
}
return -1;
}
public int unaryTransformIndex(String child) {
int pos = binaryTransformSize * numBinaryMatrices;
for (Map.Entry<String, SimpleMatrix> unary : unaryTransform.entrySet()) {
if (unary.getKey().equals(child)) {
return pos;
}
pos += unary.getValue().getNumElements();
}
return -1;
}
public int binaryScoreIndex(String leftChild, String rightChild) {
int pos = binaryTransformSize * numBinaryMatrices + unaryTransformSize * numUnaryMatrices;
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> binary : binaryScore) {
if (binary.getFirstKey().equals(leftChild) && binary.getSecondKey().equals(rightChild)) {
return pos;
}
pos += binary.getValue().getNumElements();
}
return -1;
}
public int unaryScoreIndex(String child) {
int pos = (binaryTransformSize + binaryScoreSize) * numBinaryMatrices + unaryTransformSize * numUnaryMatrices;
for (Map.Entry<String, SimpleMatrix> unary : unaryScore.entrySet()) {
if (unary.getKey().equals(child)) {
return pos;
}
pos += unary.getValue().getNumElements();
}
return -1;
}
public Pair<String, String> indexToBinaryTransform(int pos) {
if (pos < numBinaryMatrices * binaryTransformSize) {
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> entry : binaryTransform) {
if (binaryTransformSize < pos) {
pos -= binaryTransformSize;
} else {
return Pair.makePair(entry.getFirstKey(), entry.getSecondKey());
}
}
}
return null;
}
public String indexToUnaryTransform(int pos) {
pos -= numBinaryMatrices * binaryTransformSize;
if (pos < numUnaryMatrices * unaryTransformSize && pos >= 0) {
for (Map.Entry<String, SimpleMatrix> entry : unaryTransform.entrySet()) {
if (unaryTransformSize < pos) {
pos -= unaryTransformSize;
} else {
return entry.getKey();
}
}
}
return null;
}
public Pair<String, String> indexToBinaryScore(int pos) {
pos -= (numBinaryMatrices * binaryTransformSize + numUnaryMatrices * unaryTransformSize);
if (pos < numBinaryMatrices * binaryScoreSize && pos >= 0) {
for (TwoDimensionalMap.Entry<String, String, SimpleMatrix> entry : binaryScore) {
if (binaryScoreSize < pos) {
pos -= binaryScoreSize;
} else {
return Pair.makePair(entry.getFirstKey(), entry.getSecondKey());
}
}
}
return null;
}
public String indexToUnaryScore(int pos) {
pos -= (numBinaryMatrices * (binaryTransformSize + binaryScoreSize) + numUnaryMatrices * unaryTransformSize);
if (pos < numUnaryMatrices * unaryScoreSize && pos >= 0) {
for (Map.Entry<String, SimpleMatrix> entry : unaryScore.entrySet()) {
if (unaryScoreSize < pos) {
pos -= unaryScoreSize;
} else {
return entry.getKey();
}
}
}
return null;
}
/**
* Prints to stdout the type and key for the given location in the parameter stack
*/
public void printParameterType(int pos, PrintStream out) {
int originalPos = pos;
Pair<String, String> binary = indexToBinaryTransform(pos);
if (binary != null) {
pos = pos % binaryTransformSize;
out.println("Entry " + originalPos + " is entry " + pos + " of binary transform " + binary.first() + ":" + binary.second());
return;
}
String unary = indexToUnaryTransform(pos);
if (unary != null) {
pos = (pos - numBinaryMatrices * binaryTransformSize) % unaryTransformSize;
out.println("Entry " + originalPos + " is entry " + pos + " of unary transform " + unary);
return;
}
binary = indexToBinaryScore(pos);
if (binary != null) {
pos = (pos - numBinaryMatrices * binaryTransformSize - numUnaryMatrices * unaryTransformSize) % binaryScoreSize;
out.println("Entry " + originalPos + " is entry " + pos + " of binary score " + binary.first() + ":" + binary.second());
return;
}
unary = indexToUnaryScore(pos);
if (unary != null) {
pos = (pos - (numBinaryMatrices * (binaryTransformSize + binaryScoreSize)) - numUnaryMatrices * unaryTransformSize) % unaryScoreSize;
out.println("Entry " + originalPos + " is entry " + pos + " of unary score " + unary);
return;
}
out.println("Index " + originalPos + " unknown");
}
private static final long serialVersionUID = 1;
}