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am 02833d11: Fix the autocorrection normalized score calculation

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* commit '02833d11c3191282b7a05bca4e9f19a7b036980e':
  Fix the autocorrection normalized score calculation
This commit is contained in:
Satoshi Kataoka 2013-08-23 00:56:41 -07:00 committed by Android Git Automerger
commit 3a08074cb5
1 changed files with 5 additions and 2 deletions
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7
native/jni/src/utils/autocorrection_threshold_utils.cpp
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@ -83,9 +83,12 @@ const int AutocorrectionThresholdUtils::FULL_WORD_MULTIPLIER = 2;
return 0.0f; return 0.0f;
} }
if (score <= 0 || distance >= afterLength) {
// normalizedScore must be 0.0f (the minimum value) if the score is less than or equal to 0,
// or if the edit distance is larger than or equal to afterLength.
return 0.0f;
}
// add a weight based on edit distance. // add a weight based on edit distance.
// distance <= max(afterLength, beforeLength) == afterLength,
// so, 0 <= distance / afterLength <= 1
const float weight = 1.0f - static_cast<float>(distance) / static_cast<float>(afterLength); const float weight = 1.0f - static_cast<float>(distance) / static_cast<float>(afterLength);
// TODO: Revise the following logic thoroughly by referring to... // TODO: Revise the following logic thoroughly by referring to...