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Make sure to suppress BoS prediction until input twice.

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Change-Id: I98d91f264d5d1d3f5bcda1fd9ec885779ba2f746
This commit is contained in:
Keisuke Kuroyanagi 2014-10-06 19:36:04 +09:00
parent ca17ed7d9d
commit 1c2f00f6b5
2 changed files with 8 additions and 2 deletions
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5
native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
View File

@ -378,7 +378,10 @@ bool Ver4PatriciaTriePolicy::updateCounter(const PrevWordsInfo *const prevWordsI
AKLOGE("Cannot update unigarm entry in updateCounter().");
return false;
}
const NgramProperty ngramProperty(wordCodePoints.toVector(), probability, historicalInfo);
const int probabilityForNgram = prevWordsInfo->isNthPrevWordBeginningOfSentence(1 /* n */)
? NOT_A_PROBABILITY : probability;
const NgramProperty ngramProperty(wordCodePoints.toVector(), probabilityForNgram,
historicalInfo);
for (size_t i = 1; i <= prevWordsInfo->getPrevWordCount(); ++i) {
const PrevWordsInfo trimmedPrevWordsInfo(prevWordsInfo->getTrimmedPrevWordsInfo(i));
if (!addNgramEntry(&trimmedPrevWordsInfo, &ngramProperty)) {

5
tests/src/com/android/inputmethod/latin/BinaryDictionaryDecayingTests.java
View File

@ -611,20 +611,23 @@ public class BinaryDictionaryDecayingTests extends AndroidTestCase {
mCurrentTime);
final NgramContext beginningOfSentenceContext = NgramContext.BEGINNING_OF_SENTENCE;
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "aaa", true /* isValidWord */);
assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "aaa", true /* isValidWord */);
assertTrue(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "aaa", true /* isValidWord */);
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "bbb", true /* isValidWord */);
assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "bbb"));
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "bbb", true /* isValidWord */);
assertTrue(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
assertTrue(binaryDictionary.isValidNgram(beginningOfSentenceContext, "bbb"));
forcePassingLongTime(binaryDictionary);
assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "bbb"));
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "aaa", true /* isValidWord */);
assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "aaa", true /* isValidWord */);
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "bbb", true /* isValidWord */);
assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "bbb"));
onInputWordWithBeginningOfSentenceContext(binaryDictionary, "bbb", true /* isValidWord */);
assertTrue(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
assertTrue(binaryDictionary.isValidNgram(beginningOfSentenceContext, "bbb"));