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Merge "Change name of DecayingUtils."

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This commit is contained in:
Keisuke Kuroyanagi 2013-10-02 07:54:52 +00:00 committed by Android (Google) Code Review
commit 52c20927a9
7 changed files with 49 additions and 46 deletions
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2
native/jni/Android.mk
View file

@ -85,8 +85,8 @@ LATIN_IME_CORE_SRC_FILES := \
$(addprefix suggest/policyimpl/dictionary/utils/, \
buffer_with_extendable_buffer.cpp \
byte_array_utils.cpp \
decaying_utils.cpp \
dict_file_writing_utils.cpp \
forgetting_curve_utils.cpp \
format_utils.cpp) \
suggest/policyimpl/gesture/gesture_suggest_policy_factory.cpp \
$(addprefix suggest/policyimpl/typing/, \

12
native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp
View file

@ -20,7 +20,7 @@
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
#include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
#include "suggest/policyimpl/dictionary/utils/decaying_utils.h"
#include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
namespace latinime {
@ -43,7 +43,7 @@ void DynamicBigramListPolicy::getNextBigram(int *const outBigramPos, int *const
}
*outProbability = BigramListReadWriteUtils::getProbabilityFromFlags(bigramFlags);
*outHasNext = BigramListReadWriteUtils::hasNext(bigramFlags);
if (mIsDecayingDict && !DecayingUtils::isValidBigram(*outProbability)) {
if (mIsDecayingDict && !ForgettingCurveUtils::isValidBigram(*outProbability)) {
// This bigram is too weak to output.
*outBigramPos = NOT_A_DICT_POS;
} else {
@ -261,7 +261,7 @@ bool DynamicBigramListPolicy::addNewBigramEntryToBigramList(const int bigramTarg
const int originalProbability = BigramListReadWriteUtils::getProbabilityFromFlags(
bigramFlags);
const int probabilityToWrite = mIsDecayingDict ?
DecayingUtils::getUpdatedBigramProbabilityDelta(
ForgettingCurveUtils::getUpdatedBigramProbabilityDelta(
originalProbability, probability) : probability;
const BigramListReadWriteUtils::BigramFlags updatedFlags =
BigramListReadWriteUtils::setProbabilityInFlags(bigramFlags,
@ -294,7 +294,7 @@ bool DynamicBigramListPolicy::writeNewBigramEntry(const int bigramTargetPos, con
int *const writingPos) {
// hasNext is false because we are adding a new bigram entry at the end of the bigram list.
const int probabilityToWrite = mIsDecayingDict ?
DecayingUtils::getUpdatedBigramProbabilityDelta(NOT_A_PROBABILITY, probability) :
ForgettingCurveUtils::getUpdatedBigramProbabilityDelta(NOT_A_PROBABILITY, probability) :
probability;
return BigramListReadWriteUtils::createAndWriteBigramEntry(mBuffer, bigramTargetPos,
probabilityToWrite, false /* hasNext */, writingPos);
@ -365,9 +365,9 @@ bool DynamicBigramListPolicy::updateProbabilityForDecay(
*outRemoved = false;
if (mIsDecayingDict) {
// Update bigram probability for decaying.
const int newProbability = DecayingUtils::getBigramProbabilityDeltaToSave(
const int newProbability = ForgettingCurveUtils::getBigramProbabilityDeltaToSave(
BigramListReadWriteUtils::getProbabilityFromFlags(bigramFlags));
if (DecayingUtils::isValidBigram(newProbability)) {
if (ForgettingCurveUtils::isValidBigram(newProbability)) {
// Write new probability.
const BigramListReadWriteUtils::BigramFlags updatedBigramFlags =
BigramListReadWriteUtils::setProbabilityInFlags(

6
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.cpp
View file

@ -16,7 +16,7 @@
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h"
#include "suggest/policyimpl/dictionary/utils/decaying_utils.h"
#include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
namespace latinime {
@ -29,14 +29,14 @@ bool DynamicPatriciaTrieGcEventListeners
bool isUselessPtNode = !node->isTerminal();
if (node->isTerminal() && mIsDecayingDict) {
const int newProbability =
DecayingUtils::getUnigramProbabilityToSave(node->getProbability());
ForgettingCurveUtils::getUnigramProbabilityToSave(node->getProbability());
int writingPos = node->getProbabilityFieldPos();
// Update probability.
if (!DynamicPatriciaTrieWritingUtils::writeProbabilityAndAdvancePosition(
mBuffer, newProbability, &writingPos)) {
return false;
}
if (!DecayingUtils::isValidUnigram(newProbability)) {
if (!ForgettingCurveUtils::isValidUnigram(newProbability)) {
isUselessPtNode = false;
}
}

8
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.cpp
View file

@ -28,7 +28,7 @@
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
#include "suggest/policyimpl/dictionary/utils/decaying_utils.h"
#include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
#include "suggest/policyimpl/dictionary/utils/probability_utils.h"
namespace latinime {
@ -154,7 +154,7 @@ int DynamicPatriciaTriePolicy::getTerminalNodePositionOfWord(const int *const in
int DynamicPatriciaTriePolicy::getProbability(const int unigramProbability,
const int bigramProbability) const {
if (mHeaderPolicy.isDecayingDict()) {
return DecayingUtils::getProbability(unigramProbability, bigramProbability);
return ForgettingCurveUtils::getProbability(unigramProbability, bigramProbability);
} else {
if (unigramProbability == NOT_A_PROBABILITY) {
return NOT_A_PROBABILITY;
@ -344,10 +344,10 @@ bool DynamicPatriciaTriePolicy::needsToRunGC(const bool mindsBlockByGC) const {
// Needs to reduce dictionary size.
return true;
} else if (mHeaderPolicy.isDecayingDict()) {
if (mUnigramCount >= DecayingUtils::MAX_UNIGRAM_COUNT) {
if (mUnigramCount >= ForgettingCurveUtils::MAX_UNIGRAM_COUNT) {
// Unigram count exceeds the limit.
return true;
} else if (mBigramCount >= DecayingUtils::MAX_BIGRAM_COUNT) {
} else if (mBigramCount >= ForgettingCurveUtils::MAX_BIGRAM_COUNT) {
// Bigram count exceeds the limit.
return true;
} else if (mindsBlockByGC && needsToDecay()) {

9
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp
View file

@ -25,8 +25,8 @@
#include "suggest/policyimpl/dictionary/header/header_policy.h"
#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
#include "suggest/policyimpl/dictionary/shortcut/dynamic_shortcut_list_policy.h"
#include "suggest/policyimpl/dictionary/utils/decaying_utils.h"
#include "suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
#include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
#include "utils/hash_map_compat.h"
namespace latinime {
@ -494,7 +494,7 @@ bool DynamicPatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
return false;
}
if (mNeedsToDecay && traversePolicyToUpdateUnigramProbabilityAndMarkUselessPtNodesAsDeleted
.getValidUnigramCount() > DecayingUtils::MAX_UNIGRAM_COUNT_AFTER_GC) {
.getValidUnigramCount() > ForgettingCurveUtils::MAX_UNIGRAM_COUNT_AFTER_GC) {
// TODO: Remove more unigrams.
}
@ -507,7 +507,7 @@ bool DynamicPatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
}
if (mNeedsToDecay && traversePolicyToUpdateBigramProbability.getValidBigramEntryCount()
> DecayingUtils::MAX_BIGRAM_COUNT_AFTER_GC) {
> ForgettingCurveUtils::MAX_BIGRAM_COUNT_AFTER_GC) {
// TODO: Remove more bigrams.
}
@ -545,7 +545,8 @@ bool DynamicPatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
int DynamicPatriciaTrieWritingHelper::getUpdatedProbability(const int originalProbability,
const int newProbability) {
if (mNeedsToDecay) {
return DecayingUtils::getUpdatedUnigramProbability(originalProbability, newProbability);
return ForgettingCurveUtils::getUpdatedUnigramProbability(originalProbability,
newProbability);
} else {
return newProbability;
}

48
native/jni/src/suggest/policyimpl/dictionary/utils/decaying_utils.cpp → native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.cpp
View file

@ -14,26 +14,26 @@
* limitations under the License.
*/
#include "suggest/policyimpl/dictionary/utils/decaying_utils.h"
#include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
#include "suggest/policyimpl/dictionary/utils/probability_utils.h"
namespace latinime {
const int DecayingUtils::MAX_UNIGRAM_COUNT = 12000;
const int DecayingUtils::MAX_UNIGRAM_COUNT_AFTER_GC = 10000;
const int DecayingUtils::MAX_BIGRAM_COUNT = 12000;
const int DecayingUtils::MAX_BIGRAM_COUNT_AFTER_GC = 10000;
const int ForgettingCurveUtils::MAX_UNIGRAM_COUNT = 12000;
const int ForgettingCurveUtils::MAX_UNIGRAM_COUNT_AFTER_GC = 10000;
const int ForgettingCurveUtils::MAX_BIGRAM_COUNT = 12000;
const int ForgettingCurveUtils::MAX_BIGRAM_COUNT_AFTER_GC = 10000;
const int DecayingUtils::MAX_COMPUTED_PROBABILITY = 127;
const int DecayingUtils::MAX_UNIGRAM_PROBABILITY = 120;
const int DecayingUtils::MIN_VALID_UNIGRAM_PROBABILITY = 24;
const int DecayingUtils::UNIGRAM_PROBABILITY_STEP = 8;
const int DecayingUtils::MAX_BIGRAM_PROBABILITY_DELTA = 15;
const int DecayingUtils::MIN_VALID_BIGRAM_PROBABILITY_DELTA = 3;
const int DecayingUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
const int ForgettingCurveUtils::MAX_COMPUTED_PROBABILITY = 127;
const int ForgettingCurveUtils::MAX_UNIGRAM_PROBABILITY = 120;
const int ForgettingCurveUtils::MIN_VALID_UNIGRAM_PROBABILITY = 24;
const int ForgettingCurveUtils::UNIGRAM_PROBABILITY_STEP = 8;
const int ForgettingCurveUtils::MAX_BIGRAM_PROBABILITY_DELTA = 15;
const int ForgettingCurveUtils::MIN_VALID_BIGRAM_PROBABILITY_DELTA = 3;
const int ForgettingCurveUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
/* static */ int DecayingUtils::getProbability(const int encodedUnigramProbability,
/* static */ int ForgettingCurveUtils::getProbability(const int encodedUnigramProbability,
const int encodedBigramProbabilityDelta) {
if (encodedUnigramProbability == NOT_A_PROBABILITY) {
return NOT_A_PROBABILITY;
@ -49,8 +49,8 @@ const int DecayingUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
}
}
/* static */ int DecayingUtils::getUpdatedUnigramProbability(const int originalEncodedProbability,
const int newProbability) {
/* static */ int ForgettingCurveUtils::getUpdatedUnigramProbability(
const int originalEncodedProbability, const int newProbability) {
if (originalEncodedProbability == NOT_A_PROBABILITY) {
// The unigram is not in this dictionary.
if (newProbability == NOT_A_PROBABILITY) {
@ -68,15 +68,16 @@ const int DecayingUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
}
}
/* static */ int DecayingUtils::getUnigramProbabilityToSave(const int encodedProbability) {
/* static */ int ForgettingCurveUtils::getUnigramProbabilityToSave(const int encodedProbability) {
return max(encodedProbability - UNIGRAM_PROBABILITY_STEP, 0);
}
/* static */ int DecayingUtils::getBigramProbabilityDeltaToSave(const int encodedProbabilityDelta) {
/* static */ int ForgettingCurveUtils::getBigramProbabilityDeltaToSave(
const int encodedProbabilityDelta) {
return max(encodedProbabilityDelta - BIGRAM_PROBABILITY_DELTA_STEP, 0);
}
/* static */ int DecayingUtils::getUpdatedBigramProbabilityDelta(
/* static */ int ForgettingCurveUtils::getUpdatedBigramProbabilityDelta(
const int originalEncodedProbabilityDelta, const int newProbability) {
if (originalEncodedProbabilityDelta == NOT_A_PROBABILITY) {
// The bigram relation is not in this dictionary.
@ -96,15 +97,15 @@ const int DecayingUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
}
}
/* static */ int DecayingUtils::isValidUnigram(const int encodedUnigramProbability) {
/* static */ int ForgettingCurveUtils::isValidUnigram(const int encodedUnigramProbability) {
return encodedUnigramProbability >= MIN_VALID_UNIGRAM_PROBABILITY;
}
/* static */ int DecayingUtils::isValidBigram(const int encodedBigramProbabilityDelta) {
/* static */ int ForgettingCurveUtils::isValidBigram(const int encodedBigramProbabilityDelta) {
return encodedBigramProbabilityDelta >= MIN_VALID_BIGRAM_PROBABILITY_DELTA;
}
/* static */ int DecayingUtils::decodeUnigramProbability(const int encodedProbability) {
/* static */ int ForgettingCurveUtils::decodeUnigramProbability(const int encodedProbability) {
const int probability = encodedProbability - MIN_VALID_UNIGRAM_PROBABILITY;
if (probability < 0) {
return NOT_A_PROBABILITY;
@ -113,7 +114,8 @@ const int DecayingUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
}
}
/* static */ int DecayingUtils::decodeBigramProbabilityDelta(const int encodedProbabilityDelta) {
/* static */ int ForgettingCurveUtils::decodeBigramProbabilityDelta(
const int encodedProbabilityDelta) {
const int probabilityDelta = encodedProbabilityDelta - MIN_VALID_BIGRAM_PROBABILITY_DELTA;
if (probabilityDelta < 0) {
return NOT_A_PROBABILITY;
@ -122,7 +124,7 @@ const int DecayingUtils::BIGRAM_PROBABILITY_DELTA_STEP = 1;
}
}
/* static */ int DecayingUtils::getDecayedProbability(const int rawProbability) {
/* static */ int ForgettingCurveUtils::getDecayedProbability(const int rawProbability) {
return rawProbability;
}

10
native/jni/src/suggest/policyimpl/dictionary/utils/decaying_utils.h → native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h
View file

@ -14,8 +14,8 @@
* limitations under the License.
*/
#ifndef LATINIME_DECAYING_UTILS_H
#define LATINIME_DECAYING_UTILS_H
#ifndef LATINIME_FORGETTING_CURVE_UTILS_H
#define LATINIME_FORGETTING_CURVE_UTILS_H
#include "defines.h"
@ -25,7 +25,7 @@ namespace latinime {
// required to introduced to each terminal PtNode and bigram entry.
// TODO: Quit using bigram probability to indicate the delta.
// TODO: Quit using bigram probability delta.
class DecayingUtils {
class ForgettingCurveUtils {
public:
static const int MAX_UNIGRAM_COUNT;
static const int MAX_UNIGRAM_COUNT_AFTER_GC;
@ -50,7 +50,7 @@ class DecayingUtils {
static int getBigramProbabilityDeltaToSave(const int encodedProbabilityDelta);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(DecayingUtils);
DISALLOW_IMPLICIT_CONSTRUCTORS(ForgettingCurveUtils);
static const int MAX_COMPUTED_PROBABILITY;
static const int MAX_UNIGRAM_PROBABILITY;
@ -67,4 +67,4 @@ class DecayingUtils {
static int getDecayedProbability(const int rawProbability);
};
} // namespace latinime
#endif /* LATINIME_DECAYING_UTILS_H */
#endif /* LATINIME_FORGETTING_CURVE_UTILS_H */