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Fix exact match checking for words with digraph.

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Bug: 8624690
Change-Id: I8946d6618609c8e0cb638aa96992b51b435232c7
This commit is contained in:
Keisuke Kuroynagi 2013-04-25 16:47:38 +09:00
parent 30f0f3a92a
commit 60a169f0c3
9 changed files with 115 additions and 102 deletions
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20
native/jni/src/defines.h
View file

@ -438,4 +438,24 @@ typedef enum {
// Create new word with space substitution
CT_NEW_WORD_SPACE_SUBSTITUTION,
} CorrectionType;
// ErrorType is mainly decided by CorrectionType but it is also depending on if
// the correction has really been performed or not.
typedef enum {
// Substitution, omission and transposition
ET_EDIT_CORRECTION,
// Proximity error
ET_PROXIMITY_CORRECTION,
// Completion
ET_COMPLETION,
// New word
// TODO: Remove.
// A new word error should be an edit correction error or a proximity correction error.
ET_NEW_WORD,
// Treat error as an intentional omission when the CorrectionType is omission and the node can
// be intentional omission.
ET_INTENTIONAL_OMISSION,
// Not treated as an error. Tracked for checking exact match
ET_NOT_AN_ERROR
} ErrorType;
#endif // LATINIME_DEFINES_H

9
native/jni/src/suggest/core/dicnode/dic_node.h
View file

@ -463,6 +463,10 @@ class DicNode {
mDicNodeState.mDicNodeStateScoring.advanceDigraphIndex();
}
bool isExactMatch() const {
return mDicNodeState.mDicNodeStateScoring.isExactMatch();
}
uint8_t getFlags() const {
return mDicNodeProperties.getFlags();
}
@ -542,13 +546,12 @@ class DicNode {
// Caveat: Must not be called outside Weighting
// This restriction is guaranteed by "friend"
AK_FORCE_INLINE void addCost(const float spatialCost, const float languageCost,
const bool doNormalization, const int inputSize, const bool isEditCorrection,
const bool isProximityCorrection) {
const bool doNormalization, const int inputSize, const ErrorType errorType) {
if (DEBUG_GEO_FULL) {
LOGI_SHOW_ADD_COST_PROP;
}
mDicNodeState.mDicNodeStateScoring.addCost(spatialCost, languageCost, doNormalization,
inputSize, getTotalInputIndex(), isEditCorrection, isProximityCorrection);
inputSize, getTotalInputIndex(), errorType);
}
// Caveat: Must not be called outside Weighting

4
native/jni/src/suggest/core/dicnode/dic_node_state_input.h
View file

@ -46,8 +46,8 @@ class DicNodeStateInput {
for (int i = 0; i < MAX_POINTER_COUNT_G; i++) {
mInputIndex[i] = src->mInputIndex[i];
mPrevCodePoint[i] = src->mPrevCodePoint[i];
mTerminalDiffCost[i] = resetTerminalDiffCost ?
static_cast<float>(MAX_VALUE_FOR_WEIGHTING) : src->mTerminalDiffCost[i];
mTerminalDiffCost[i] = resetTerminalDiffCost ?
static_cast<float>(MAX_VALUE_FOR_WEIGHTING) : src->mTerminalDiffCost[i];
}
}

37
native/jni/src/suggest/core/dicnode/dic_node_state_scoring.h
View file

@ -31,7 +31,7 @@ class DicNodeStateScoring {
mDigraphIndex(DigraphUtils::NOT_A_DIGRAPH_INDEX),
mEditCorrectionCount(0), mProximityCorrectionCount(0),
mNormalizedCompoundDistance(0.0f), mSpatialDistance(0.0f), mLanguageDistance(0.0f),
mRawLength(0.0f) {
mRawLength(0.0f), mExactMatch(true) {
}
virtual ~DicNodeStateScoring() {}
@ -45,6 +45,7 @@ class DicNodeStateScoring {
mRawLength = 0.0f;
mDoubleLetterLevel = NOT_A_DOUBLE_LETTER;
mDigraphIndex = DigraphUtils::NOT_A_DIGRAPH_INDEX;
mExactMatch = true;
}
AK_FORCE_INLINE void init(const DicNodeStateScoring *const scoring) {
@ -56,17 +57,32 @@ class DicNodeStateScoring {
mRawLength = scoring->mRawLength;
mDoubleLetterLevel = scoring->mDoubleLetterLevel;
mDigraphIndex = scoring->mDigraphIndex;
mExactMatch = scoring->mExactMatch;
}
void addCost(const float spatialCost, const float languageCost, const bool doNormalization,
const int inputSize, const int totalInputIndex, const bool isEditCorrection,
const bool isProximityCorrection) {
const int inputSize, const int totalInputIndex, const ErrorType errorType) {
addDistance(spatialCost, languageCost, doNormalization, inputSize, totalInputIndex);
if (isEditCorrection) {
++mEditCorrectionCount;
}
if (isProximityCorrection) {
++mProximityCorrectionCount;
switch (errorType) {
case ET_EDIT_CORRECTION:
++mEditCorrectionCount;
mExactMatch = false;
break;
case ET_PROXIMITY_CORRECTION:
++mProximityCorrectionCount;
mExactMatch = false;
break;
case ET_COMPLETION:
mExactMatch = false;
break;
case ET_NEW_WORD:
mExactMatch = false;
break;
case ET_INTENTIONAL_OMISSION:
mExactMatch = false;
break;
case ET_NOT_AN_ERROR:
break;
}
}
@ -143,6 +159,10 @@ class DicNodeStateScoring {
}
}
bool isExactMatch() const {
return mExactMatch;
}
private:
// Caution!!!
// Use a default copy constructor and an assign operator because shallow copies are ok
@ -157,6 +177,7 @@ class DicNodeStateScoring {
float mSpatialDistance;
float mLanguageDistance;
float mRawLength;
bool mExactMatch;
AK_FORCE_INLINE void addDistance(float spatialDistance, float languageDistance,
bool doNormalization, int inputSize, int totalInputIndex) {

63
native/jni/src/suggest/core/policy/weighting.cpp
View file

@ -80,9 +80,8 @@ static inline void profile(const CorrectionType correctionType, DicNode *const n
traverseSession, parentDicNode, dicNode, &inputStateG);
const float languageCost = Weighting::getLanguageCost(weighting, correctionType,
traverseSession, parentDicNode, dicNode, bigramCacheMap);
const bool edit = Weighting::isEditCorrection(correctionType);
const bool proximity = Weighting::isProximityCorrection(weighting, correctionType,
traverseSession, dicNode);
const ErrorType errorType = weighting->getErrorType(correctionType, traverseSession,
parentDicNode, dicNode);
profile(correctionType, dicNode);
if (inputStateG.mNeedsToUpdateInputStateG) {
dicNode->updateInputIndexG(&inputStateG);
@ -91,7 +90,7 @@ static inline void profile(const CorrectionType correctionType, DicNode *const n
(correctionType == CT_TRANSPOSITION));
}
dicNode->addCost(spatialCost, languageCost, weighting->needsToNormalizeCompoundDistance(),
inputSize, edit, proximity);
inputSize, errorType);
}
/* static */ float Weighting::getSpatialCost(const Weighting *const weighting,
@ -158,62 +157,6 @@ static inline void profile(const CorrectionType correctionType, DicNode *const n
}
}
/* static */ bool Weighting::isEditCorrection(const CorrectionType correctionType) {
switch(correctionType) {
case CT_OMISSION:
return true;
case CT_ADDITIONAL_PROXIMITY:
return true;
case CT_SUBSTITUTION:
return true;
case CT_NEW_WORD_SPACE_OMITTION:
return false;
case CT_MATCH:
return false;
case CT_COMPLETION:
return false;
case CT_TERMINAL:
return false;
case CT_NEW_WORD_SPACE_SUBSTITUTION:
return false;
case CT_INSERTION:
return true;
case CT_TRANSPOSITION:
return true;
default:
return false;
}
}
/* static */ bool Weighting::isProximityCorrection(const Weighting *const weighting,
const CorrectionType correctionType,
const DicTraverseSession *const traverseSession, const DicNode *const dicNode) {
switch(correctionType) {
case CT_OMISSION:
return false;
case CT_ADDITIONAL_PROXIMITY:
return true;
case CT_SUBSTITUTION:
return false;
case CT_NEW_WORD_SPACE_OMITTION:
return false;
case CT_MATCH:
return weighting->isProximityDicNode(traverseSession, dicNode);
case CT_COMPLETION:
return false;
case CT_TERMINAL:
return false;
case CT_NEW_WORD_SPACE_SUBSTITUTION:
return false;
case CT_INSERTION:
return false;
case CT_TRANSPOSITION:
return false;
default:
return false;
}
}
/* static */ int Weighting::getForwardInputCount(const CorrectionType correctionType) {
switch(correctionType) {
case CT_OMISSION:

10
native/jni/src/suggest/core/policy/weighting.h
View file

@ -80,6 +80,10 @@ class Weighting {
virtual float getSpaceSubstitutionCost(const DicTraverseSession *const traverseSession,
const DicNode *const dicNode) const = 0;
virtual ErrorType getErrorType(const CorrectionType correctionType,
const DicTraverseSession *const traverseSession,
const DicNode *const parentDicNode, const DicNode *const dicNode) const = 0;
Weighting() {}
virtual ~Weighting() {}
@ -95,12 +99,6 @@ class Weighting {
const DicNode *const parentDicNode, const DicNode *const dicNode,
hash_map_compat<int, int16_t> *const bigramCacheMap);
// TODO: Move to TypingWeighting and GestureWeighting?
static bool isEditCorrection(const CorrectionType correctionType);
// TODO: Move to TypingWeighting and GestureWeighting?
static bool isProximityCorrection(const Weighting *const weighting,
const CorrectionType correctionType, const DicTraverseSession *const traverseSession,
const DicNode *const dicNode);
// TODO: Move to TypingWeighting and GestureWeighting?
static int getForwardInputCount(const CorrectionType correctionType);
};
} // namespace latinime

11
native/jni/src/suggest/core/suggest.cpp
View file

@ -422,20 +422,15 @@ void Suggest::processDicNodeAsDigraph(DicTraverseSession *traverseSession,
*/
void Suggest::processDicNodeAsOmission(
DicTraverseSession *traverseSession, DicNode *dicNode) const {
// If the omission is surely intentional that it should incur zero cost.
const bool isZeroCostOmission = dicNode->isZeroCostOmission();
DicNodeVector childDicNodes;
DicNodeUtils::getAllChildDicNodes(dicNode, traverseSession->getOffsetDict(), &childDicNodes);
const int size = childDicNodes.getSizeAndLock();
for (int i = 0; i < size; i++) {
DicNode *const childDicNode = childDicNodes[i];
if (!isZeroCostOmission) {
// Treat this word as omission
Weighting::addCostAndForwardInputIndex(WEIGHTING, CT_OMISSION, traverseSession,
dicNode, childDicNode, 0 /* bigramCacheMap */);
}
// Treat this word as omission
Weighting::addCostAndForwardInputIndex(WEIGHTING, CT_OMISSION, traverseSession,
dicNode, childDicNode, 0 /* bigramCacheMap */);
weightChildNode(traverseSession, childDicNode);
if (!TRAVERSAL->isPossibleOmissionChildNode(traverseSession, dicNode, childDicNode)) {

35
native/jni/src/suggest/policyimpl/typing/typing_weighting.cpp
View file

@ -21,4 +21,39 @@
namespace latinime {
const TypingWeighting TypingWeighting::sInstance;
ErrorType TypingWeighting::getErrorType(const CorrectionType correctionType,
const DicTraverseSession *const traverseSession,
const DicNode *const parentDicNode, const DicNode *const dicNode) const {
switch (correctionType) {
case CT_MATCH:
if (isProximityDicNode(traverseSession, dicNode)) {
return ET_PROXIMITY_CORRECTION;
} else {
return ET_NOT_AN_ERROR;
}
case CT_ADDITIONAL_PROXIMITY:
return ET_PROXIMITY_CORRECTION;
case CT_OMISSION:
if (parentDicNode->canBeIntentionalOmission()) {
return ET_INTENTIONAL_OMISSION;
} else {
return ET_EDIT_CORRECTION;
}
break;
case CT_SUBSTITUTION:
case CT_INSERTION:
case CT_TRANSPOSITION:
return ET_EDIT_CORRECTION;
case CT_NEW_WORD_SPACE_OMITTION:
case CT_NEW_WORD_SPACE_SUBSTITUTION:
return ET_NEW_WORD;
case CT_TERMINAL:
return ET_NOT_AN_ERROR;
case CT_COMPLETION:
return ET_COMPLETION;
default:
return ET_NOT_AN_ERROR;
}
}
} // namespace latinime

28
native/jni/src/suggest/policyimpl/typing/typing_weighting.h
View file

@ -50,13 +50,14 @@ class TypingWeighting : public Weighting {
}
float getOmissionCost(const DicNode *const parentDicNode, const DicNode *const dicNode) const {
bool sameCodePoint = false;
bool isFirstLetterOmission = false;
float cost = 0.0f;
sameCodePoint = dicNode->isSameNodeCodePoint(parentDicNode);
const bool isZeroCostOmission = parentDicNode->isZeroCostOmission();
const bool sameCodePoint = dicNode->isSameNodeCodePoint(parentDicNode);
// If the traversal omitted the first letter then the dicNode should now be on the second.
isFirstLetterOmission = dicNode->getDepth() == 2;
if (isFirstLetterOmission) {
const bool isFirstLetterOmission = dicNode->getDepth() == 2;
float cost = 0.0f;
if (isZeroCostOmission) {
cost = 0.0f;
} else if (isFirstLetterOmission) {
cost = ScoringParams::OMISSION_COST_FIRST_CHAR;
} else {
cost = sameCodePoint ? ScoringParams::OMISSION_COST_SAME_CHAR
@ -156,15 +157,8 @@ class TypingWeighting : public Weighting {
float getTerminalLanguageCost(const DicTraverseSession *const traverseSession,
const DicNode *const dicNode, const float dicNodeLanguageImprobability) const {
const bool hasEditCount = dicNode->getEditCorrectionCount() > 0;
const bool isSameLength = dicNode->getDepth() == traverseSession->getInputSize();
const bool hasMultipleWords = dicNode->hasMultipleWords();
const bool hasProximityErrors = dicNode->getProximityCorrectionCount() > 0;
// Gesture input is always assumed to have proximity errors
// because the input word shouldn't be treated as perfect
const bool isExactMatch = !hasEditCount && !hasMultipleWords
&& !hasProximityErrors && isSameLength;
const float languageImprobability = isExactMatch ? 0.0f : dicNodeLanguageImprobability;
const float languageImprobability = (dicNode->isExactMatch()) ?
0.0f : dicNodeLanguageImprobability;
return languageImprobability * ScoringParams::DISTANCE_WEIGHT_LANGUAGE;
}
@ -189,6 +183,10 @@ class TypingWeighting : public Weighting {
return cost * traverseSession->getMultiWordCostMultiplier();
}
ErrorType getErrorType(const CorrectionType correctionType,
const DicTraverseSession *const traverseSession,
const DicNode *const parentDicNode, const DicNode *const dicNode) const;
private:
DISALLOW_COPY_AND_ASSIGN(TypingWeighting);
static const TypingWeighting sInstance;