Fix the autocorrection normalized score calculation
Bug: 10441240
Change-Id: I256021dc55481960d6a605046daa17b1a2d55b95
diff --git a/native/jni/src/utils/autocorrection_threshold_utils.cpp b/native/jni/src/utils/autocorrection_threshold_utils.cpp
index 3406e0f..1f8ee08 100644
--- a/native/jni/src/utils/autocorrection_threshold_utils.cpp
+++ b/native/jni/src/utils/autocorrection_threshold_utils.cpp
@@ -83,9 +83,12 @@
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.
- // distance <= max(afterLength, beforeLength) == afterLength,
- // so, 0 <= distance / afterLength <= 1
const float weight = 1.0f - static_cast<float>(distance) / static_cast<float>(afterLength);
// TODO: Revise the following logic thoroughly by referring to...