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Implement update node probability method.

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Bug: 6669677
Change-Id: I61ac0d05e362fc7d8a967ddd8286580998c70487
This commit is contained in:
Keisuke Kuroyanagi 2013-09-09 15:29:11 +09:00
parent 37e0fd2ff0
commit 7bd7dc5d0d
4 changed files with 57 additions and 11 deletions
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5
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.cpp
View file

@ -43,8 +43,13 @@ void DynamicPatriciaTrieNodeReader::fetchNodeInfoFromBufferAndProcessMovedNode(c
dictBuf, mFlags, MAX_WORD_LENGTH, &pos);
}
if (isTerminal()) {
mProbabilityFieldPos = pos;
if (usesAdditionalBuffer) {
mProbabilityFieldPos += mBuffer->getOriginalBufferSize();
}
mProbability = PatriciaTrieReadingUtils::readProbabilityAndAdvancePosition(dictBuf, &pos);
} else {
mProbabilityFieldPos = NOT_A_DICT_POS;
mProbability = NOT_A_PROBABILITY;
}
mChildrenPos = DynamicPatriciaTrieReadingUtils::readChildrenPositionAndAdvancePosition(

8
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h
View file

@ -40,7 +40,8 @@ class DynamicPatriciaTrieNodeReader {
const DictionaryShortcutsStructurePolicy *const shortcutsPolicy)
: mBuffer(buffer), mBigramsPolicy(bigramsPolicy),
mShortcutsPolicy(shortcutsPolicy), mNodePos(NOT_A_VALID_WORD_POS), mFlags(0),
mParentPos(NOT_A_DICT_POS), mCodePointCount(0), mProbability(NOT_A_PROBABILITY),
mParentPos(NOT_A_DICT_POS), mCodePointCount(0),
mProbabilityFieldPos(NOT_A_DICT_POS), mProbability(NOT_A_PROBABILITY),
mChildrenPos(NOT_A_DICT_POS), mShortcutPos(NOT_A_DICT_POS),
mBigramPos(NOT_A_DICT_POS), mSiblingPos(NOT_A_VALID_WORD_POS) {}
@ -95,6 +96,10 @@ class DynamicPatriciaTrieNodeReader {
}
// Probability
AK_FORCE_INLINE int getProbabilityFieldPos() const {
return mProbabilityFieldPos;
}
AK_FORCE_INLINE int getProbability() const {
return mProbability;
}
@ -129,6 +134,7 @@ class DynamicPatriciaTrieNodeReader {
DynamicPatriciaTrieReadingUtils::NodeFlags mFlags;
int mParentPos;
uint8_t mCodePointCount;
int mProbabilityFieldPos;
int mProbability;
int mChildrenPos;
int mShortcutPos;

51
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp
View file

@ -26,6 +26,9 @@
namespace latinime {
// TODO: Enable dynamic update and remove this flag.
const bool DynamicPatriciaTrieWritingHelper::ENABLE_DYNAMIC_UPDATE = false;
bool DynamicPatriciaTrieWritingHelper::addUnigramWord(
DynamicPatriciaTrieReadingHelper *const readingHelper,
const int *const wordCodePoints, const int codePointCount, const int probability) {
@ -56,12 +59,12 @@ bool DynamicPatriciaTrieWritingHelper::addUnigramWord(
}
// All characters are matched.
if (codePointCount == readingHelper->getTotalCodePointCount()) {
if (nodeReader->isTerminal()) {
// TODO: Update probability.
if (ENABLE_DYNAMIC_UPDATE) {
setPtNodeProbability(nodeReader, probability,
readingHelper->getMergedNodeCodePoints());
} else {
// TODO: Make it terminal and update probability.
return false;
}
return false;
}
if (!nodeReader->hasChildren()) {
// TODO: Create children node array and add new node as a child.
@ -76,12 +79,14 @@ bool DynamicPatriciaTrieWritingHelper::addUnigramWord(
return false;
}
int pos = readingHelper->getPosOfLastForwardLinkField();
// TODO: Remove.
return false;
return createAndInsertNodeIntoPtNodeArray(parentPos,
wordCodePoints + readingHelper->getPrevTotalCodePointCount(),
codePointCount - readingHelper->getPrevTotalCodePointCount(),
probability, &pos);
if (ENABLE_DYNAMIC_UPDATE) {
return createAndInsertNodeIntoPtNodeArray(parentPos,
wordCodePoints + readingHelper->getPrevTotalCodePointCount(),
codePointCount - readingHelper->getPrevTotalCodePointCount(),
probability, &pos);
} else {
return false;
}
}
bool DynamicPatriciaTrieWritingHelper::addBigramWords(const int word0Pos, const int word1Pos,
@ -214,4 +219,30 @@ bool DynamicPatriciaTrieWritingHelper::createAndInsertNodeIntoPtNodeArray(const
return true;
}
bool DynamicPatriciaTrieWritingHelper::setPtNodeProbability(
const DynamicPatriciaTrieNodeReader *const originalPtNode, const int probability,
const int *const codePoints) {
if (originalPtNode->isTerminal()) {
// Overwrites the probability.
int probabilityFieldPos = originalPtNode->getProbabilityFieldPos();
if (!DynamicPatriciaTrieWritingUtils::writeProbabilityAndAdvancePosition(mBuffer,
probability, &probabilityFieldPos)) {
return false;
}
} else {
// Make the node terminal and write the probability.
int movedPos = mBuffer->getTailPosition();
if (!markNodeAsMovedAndSetPosition(originalPtNode, movedPos)) {
return false;
}
if (!writeNodeToBuffer(originalPtNode->isBlacklisted(), originalPtNode->isNotAWord(),
originalPtNode->getParentPos(), codePoints, originalPtNode->getCodePointCount(),
probability, originalPtNode->getChildrenPos(), originalPtNode->getBigramsPos(),
originalPtNode->getShortcutPos(), &movedPos)) {
return false;
}
}
return true;
}
} // namespace latinime

4
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h
View file

@ -49,6 +49,7 @@ class DynamicPatriciaTrieWritingHelper {
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(DynamicPatriciaTrieWritingHelper);
static const bool ENABLE_DYNAMIC_UPDATE;
BufferWithExtendableBuffer *const mBuffer;
DynamicBigramListPolicy *const mBigramPolicy;
DynamicShortcutListPolicy *const mShortcutPolicy;
@ -63,6 +64,9 @@ class DynamicPatriciaTrieWritingHelper {
bool createAndInsertNodeIntoPtNodeArray(const int parentPos, const int *const nodeCodePoints,
const int nodeCodePointCount, const int probability, int *const forwardLinkFieldPos);
bool setPtNodeProbability(const DynamicPatriciaTrieNodeReader *const originalNode,
const int probability, const int *const codePoints);
};
} // namespace latinime
#endif /* LATINIME_DYNAMIC_PATRICIA_TRIE_WRITING_HELPER_H */