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Move methods of MultiBigramMap to cpp file. 

Change-Id: Icf10795037a7e966ac843cd168fe45955b6aef56
main
Keisuke Kuroyanagi 2013-12-02 15:14:10 +09:00
parent 11765ee804
commit b685ffa13c
2 changed files with 79 additions and 59 deletions
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71
native/jni/src/suggest/core/dictionary/multi_bigram_map.cpp
View File

@ -30,4 +30,75 @@ const size_t MultiBigramMap::MAX_CACHED_PREV_WORDS_IN_BIGRAM_MAP = 25;
// Most common previous word contexts currently have 100 bigrams
const int MultiBigramMap::BigramMap::DEFAULT_HASH_MAP_SIZE_FOR_EACH_BIGRAM_MAP = 100;
// Look up the bigram probability for the given word pair from the cached bigram maps.
// Also caches the bigrams if there is space remaining and they have not been cached already.
int MultiBigramMap::getBigramProbability(
const DictionaryStructureWithBufferPolicy *const structurePolicy,
const int wordPosition, const int nextWordPosition, const int unigramProbability) {
hash_map_compat<int, BigramMap>::const_iterator mapPosition =
mBigramMaps.find(wordPosition);
if (mapPosition != mBigramMaps.end()) {
return mapPosition->second.getBigramProbability(structurePolicy, nextWordPosition,
unigramProbability);
}
if (mBigramMaps.size() < MAX_CACHED_PREV_WORDS_IN_BIGRAM_MAP) {
addBigramsForWordPosition(structurePolicy, wordPosition);
return mBigramMaps[wordPosition].getBigramProbability(structurePolicy,
nextWordPosition, unigramProbability);
}
return readBigramProbabilityFromBinaryDictionary(structurePolicy, wordPosition,
nextWordPosition, unigramProbability);
}
void MultiBigramMap::BigramMap::init(
const DictionaryStructureWithBufferPolicy *const structurePolicy, const int nodePos) {
const int bigramsListPos = structurePolicy->getBigramsPositionOfPtNode(nodePos);
BinaryDictionaryBigramsIterator bigramsIt(structurePolicy->getBigramsStructurePolicy(),
bigramsListPos);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == NOT_A_DICT_POS) {
continue;
}
mBigramMap[bigramsIt.getBigramPos()] = bigramsIt.getProbability();
mBloomFilter.setInFilter(bigramsIt.getBigramPos());
}
}
int MultiBigramMap::BigramMap::getBigramProbability(
const DictionaryStructureWithBufferPolicy *const structurePolicy,
const int nextWordPosition, const int unigramProbability) const {
int bigramProbability = NOT_A_PROBABILITY;
if (mBloomFilter.isInFilter(nextWordPosition)) {
const hash_map_compat<int, int>::const_iterator bigramProbabilityIt =
mBigramMap.find(nextWordPosition);
if (bigramProbabilityIt != mBigramMap.end()) {
bigramProbability = bigramProbabilityIt->second;
}
}
return structurePolicy->getProbability(unigramProbability, bigramProbability);
}
void MultiBigramMap::addBigramsForWordPosition(
const DictionaryStructureWithBufferPolicy *const structurePolicy, const int position) {
mBigramMaps[position].init(structurePolicy, position);
}
int MultiBigramMap::readBigramProbabilityFromBinaryDictionary(
const DictionaryStructureWithBufferPolicy *const structurePolicy, const int nodePos,
const int nextWordPosition, const int unigramProbability) {
int bigramProbability = NOT_A_PROBABILITY;
const int bigramsListPos = structurePolicy->getBigramsPositionOfPtNode(nodePos);
BinaryDictionaryBigramsIterator bigramsIt(structurePolicy->getBigramsStructurePolicy(),
bigramsListPos);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == nextWordPosition) {
bigramProbability = bigramsIt.getProbability();
break;
}
}
return structurePolicy->getProbability(unigramProbability, bigramProbability);
}
} // namespace latinime

67
native/jni/src/suggest/core/dictionary/multi_bigram_map.h
View File

@ -38,21 +38,7 @@ class MultiBigramMap {
// Look up the bigram probability for the given word pair from the cached bigram maps.
// Also caches the bigrams if there is space remaining and they have not been cached already.
int getBigramProbability(const DictionaryStructureWithBufferPolicy *const structurePolicy,
const int wordPosition, const int nextWordPosition, const int unigramProbability) {
hash_map_compat<int, BigramMap>::const_iterator mapPosition =
mBigramMaps.find(wordPosition);
if (mapPosition != mBigramMaps.end()) {
return mapPosition->second.getBigramProbability(structurePolicy, nextWordPosition,
unigramProbability);
}
if (mBigramMaps.size() < MAX_CACHED_PREV_WORDS_IN_BIGRAM_MAP) {
addBigramsForWordPosition(structurePolicy, wordPosition);
return mBigramMaps[wordPosition].getBigramProbability(structurePolicy,
nextWordPosition, unigramProbability);
}
return readBigramProbabilityFromBinaryDictionary(structurePolicy, wordPosition,
nextWordPosition, unigramProbability);
}
const int wordPosition, const int nextWordPosition, const int unigramProbability);
void clear() {
mBigramMaps.clear();
@ -67,33 +53,11 @@ class MultiBigramMap {
~BigramMap() {}
void init(const DictionaryStructureWithBufferPolicy *const structurePolicy,
const int nodePos) {
const int bigramsListPos = structurePolicy->getBigramsPositionOfPtNode(nodePos);
BinaryDictionaryBigramsIterator bigramsIt(structurePolicy->getBigramsStructurePolicy(),
bigramsListPos);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == NOT_A_DICT_POS) {
continue;
}
mBigramMap[bigramsIt.getBigramPos()] = bigramsIt.getProbability();
mBloomFilter.setInFilter(bigramsIt.getBigramPos());
}
}
const int nodePos);
AK_FORCE_INLINE int getBigramProbability(
int getBigramProbability(
const DictionaryStructureWithBufferPolicy *const structurePolicy,
const int nextWordPosition, const int unigramProbability) const {
int bigramProbability = NOT_A_PROBABILITY;
if (mBloomFilter.isInFilter(nextWordPosition)) {
const hash_map_compat<int, int>::const_iterator bigramProbabilityIt =
mBigramMap.find(nextWordPosition);
if (bigramProbabilityIt != mBigramMap.end()) {
bigramProbability = bigramProbabilityIt->second;
}
}
return structurePolicy->getProbability(unigramProbability, bigramProbability);
}
const int nextWordPosition, const int unigramProbability) const;
private:
// NOTE: The BigramMap class doesn't use DISALLOW_COPY_AND_ASSIGN() because its default
@ -103,27 +67,12 @@ class MultiBigramMap {
BloomFilter mBloomFilter;
};
AK_FORCE_INLINE void addBigramsForWordPosition(
const DictionaryStructureWithBufferPolicy *const structurePolicy, const int position) {
mBigramMaps[position].init(structurePolicy, position);
}
void addBigramsForWordPosition(
const DictionaryStructureWithBufferPolicy *const structurePolicy, const int position);
AK_FORCE_INLINE int readBigramProbabilityFromBinaryDictionary(
int readBigramProbabilityFromBinaryDictionary(
const DictionaryStructureWithBufferPolicy *const structurePolicy, const int nodePos,
const int nextWordPosition, const int unigramProbability) {
int bigramProbability = NOT_A_PROBABILITY;
const int bigramsListPos = structurePolicy->getBigramsPositionOfPtNode(nodePos);
BinaryDictionaryBigramsIterator bigramsIt(structurePolicy->getBigramsStructurePolicy(),
bigramsListPos);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == nextWordPosition) {
bigramProbability = bigramsIt.getProbability();
break;
}
}
return structurePolicy->getProbability(unigramProbability, bigramProbability);
}
const int nextWordPosition, const int unigramProbability);
static const size_t MAX_CACHED_PREV_WORDS_IN_BIGRAM_MAP;
hash_map_compat<int, BigramMap> mBigramMaps;