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Diffstat (limited to 'java/src/com/android/inputmethod/latin/Utils.java')
| -rw-r--r-- | java/src/com/android/inputmethod/latin/Utils.java | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/java/src/com/android/inputmethod/latin/Utils.java b/java/src/com/android/inputmethod/latin/Utils.java index bb7239daf..e6ec48cd2 100644 --- a/java/src/com/android/inputmethod/latin/Utils.java +++ b/java/src/com/android/inputmethod/latin/Utils.java @@ -275,9 +275,12 @@ public class Utils { public static double calcNormalizedScore(CharSequence before, CharSequence after, int score) { final int beforeLength = before.length(); final int afterLength = after.length(); + if (beforeLength == 0 || afterLength == 0) return 0; final int distance = editDistance(before, after); + // If afterLength < beforeLength, the algorithm is suggesting a word by excessive character + // correction. final double maximumScore = MAX_INITIAL_SCORE - * Math.pow(TYPED_LETTER_MULTIPLIER, beforeLength) + * Math.pow(TYPED_LETTER_MULTIPLIER, Math.min(beforeLength, afterLength)) * FULL_WORD_MULTIPLYER; // add a weight based on edit distance. // distance <= max(afterLength, beforeLength) == afterLength, |