diff --git a/native/jni/src/defines.h b/native/jni/src/defines.h
index 6ef9f41..e6719c9 100644
--- a/native/jni/src/defines.h
+++ b/native/jni/src/defines.h
@@ -417,16 +417,25 @@
 } DoubleLetterLevel;
 
 typedef enum {
+    // Correction for MATCH_CHAR
     CT_MATCH,
+    // Correction for PROXIMITY_CHAR
     CT_PROXIMITY,
+    // Correction for ADDITIONAL_PROXIMITY_CHAR
     CT_ADDITIONAL_PROXIMITY,
+    // Correction for SUBSTITUTION_CHAR
     CT_SUBSTITUTION,
+    // Skip one omitted letter
     CT_OMISSION,
+    // Delete an unnecessarily inserted letter
     CT_INSERTION,
+    // Swap the order of next two touch points
     CT_TRANSPOSITION,
     CT_COMPLETION,
     CT_TERMINAL,
+    // Create new word with space omission
     CT_NEW_WORD_SPACE_OMITTION,
+    // Create new word with space substitution
     CT_NEW_WORD_SPACE_SUBSTITUTION,
 } CorrectionType;
 #endif // LATINIME_DEFINES_H
diff --git a/native/jni/src/suggest/core/policy/weighting.cpp b/native/jni/src/suggest/core/policy/weighting.cpp
index a6d30e4..6c08e76 100644
--- a/native/jni/src/suggest/core/policy/weighting.cpp
+++ b/native/jni/src/suggest/core/policy/weighting.cpp
@@ -163,11 +163,9 @@
         case CT_OMISSION:
             return true;
         case CT_ADDITIONAL_PROXIMITY:
-            // Should return true?
-            return false;
+            return true;
         case CT_SUBSTITUTION:
-            // Should return true?
-            return false;
+            return true;
         case CT_NEW_WORD_SPACE_OMITTION:
             return false;
         case CT_MATCH:
@@ -194,7 +192,7 @@
         case CT_OMISSION:
             return false;
         case CT_ADDITIONAL_PROXIMITY:
-            return false;
+            return true;
         case CT_SUBSTITUTION:
             return false;
         case CT_NEW_WORD_SPACE_OMITTION:
diff --git a/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp b/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp
index 9933586..299ca83 100644
--- a/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp
+++ b/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp
@@ -28,24 +28,24 @@
 const float ScoringParams::DISTANCE_WEIGHT_LENGTH = 0.132f;
 const float ScoringParams::PROXIMITY_COST = 0.086f;
 const float ScoringParams::FIRST_PROXIMITY_COST = 0.104f;
-const float ScoringParams::OMISSION_COST = 0.388f;
-const float ScoringParams::OMISSION_COST_SAME_CHAR = 0.431f;
-const float ScoringParams::OMISSION_COST_FIRST_CHAR = 0.532f;
-const float ScoringParams::INSERTION_COST = 0.670f;
-const float ScoringParams::INSERTION_COST_SAME_CHAR = 0.526f;
-const float ScoringParams::INSERTION_COST_FIRST_CHAR = 0.563f;
-const float ScoringParams::TRANSPOSITION_COST = 0.494f;
-const float ScoringParams::SPACE_SUBSTITUTION_COST = 0.289f;
+const float ScoringParams::OMISSION_COST = 0.458f;
+const float ScoringParams::OMISSION_COST_SAME_CHAR = 0.491f;
+const float ScoringParams::OMISSION_COST_FIRST_CHAR = 0.582f;
+const float ScoringParams::INSERTION_COST = 0.730f;
+const float ScoringParams::INSERTION_COST_SAME_CHAR = 0.586f;
+const float ScoringParams::INSERTION_COST_FIRST_CHAR = 0.623f;
+const float ScoringParams::TRANSPOSITION_COST = 0.516f;
+const float ScoringParams::SPACE_SUBSTITUTION_COST = 0.319f;
 const float ScoringParams::ADDITIONAL_PROXIMITY_COST = 0.380f;
-const float ScoringParams::SUBSTITUTION_COST = 0.363f;
-const float ScoringParams::COST_NEW_WORD = 0.024f;
+const float ScoringParams::SUBSTITUTION_COST = 0.403f;
+const float ScoringParams::COST_NEW_WORD = 0.042f;
 const float ScoringParams::COST_NEW_WORD_CAPITALIZED = 0.174f;
 const float ScoringParams::DISTANCE_WEIGHT_LANGUAGE = 1.123f;
 const float ScoringParams::COST_FIRST_LOOKAHEAD = 0.545f;
 const float ScoringParams::COST_LOOKAHEAD = 0.073f;
-const float ScoringParams::HAS_PROXIMITY_TERMINAL_COST = 0.126f;
-const float ScoringParams::HAS_EDIT_CORRECTION_TERMINAL_COST = 0.056f;
-const float ScoringParams::HAS_MULTI_WORD_TERMINAL_COST = 0.536f;
+const float ScoringParams::HAS_PROXIMITY_TERMINAL_COST = 0.105f;
+const float ScoringParams::HAS_EDIT_CORRECTION_TERMINAL_COST = 0.038f;
+const float ScoringParams::HAS_MULTI_WORD_TERMINAL_COST = 0.444f;
 const float ScoringParams::TYPING_BASE_OUTPUT_SCORE = 1.0f;
 const float ScoringParams::TYPING_MAX_OUTPUT_SCORE_PER_INPUT = 0.1f;
 const float ScoringParams::MAX_NORM_DISTANCE_FOR_EDIT = 0.1f;