From 15b1a0fd14dc38ee4caa3ddc3a64c3fa8174166a Mon Sep 17 00:00:00 2001
From: Keisuke Kuroyanagi <ksk@google.com>
Date: Mon, 7 Oct 2013 12:39:51 +0900
Subject: [PATCH] Parameter optimization.

[Category diff]
+1     194
-1      21
+2      15
-2       1
+3       1
-3      15
+4     152
-4      90
+5     108
-5     197
+6      94
-6     136
+7      28
-7     132

[Weighted category diff]
+1     230
-1      23
+2      15
-2       1
+3       1
-3      15
+4     180
-4     106
+5     122
-5     224
+6     107
-6     158
+7      29
-7     157

show diff for ./en_user_log_phones_2011_08.csv
+1     171
-1       9
+2       7
-2       1
+3       1
-3       7
+4     123
-4      76
+5      84
-5     157
+6      66
-6     119
+7      20
-7     103

Before
---- count ----
Count(1):75.64%, 177913
Count(2):1.06%, 2510
Count(3):0.56%, 1319
Count(4):6.63%, 15612
Count(5):9.87%, 23223
Count(6):2.79%, 6580
Count(7):3.41%, 8038
---- weight ----
Weight(1):96.88%, 2009907
Weight(2):0.24%, 5157
Weight(3):0.09%, 2025
Weight(4):0.77%, 16095
Weight(5):1.11%, 23077
Weight(6):0.39%, 8172
Weight(7):0.48%, 10146
---- score ----
Conservative score = 66.406
Normal score = 81.512
Agressive score = 89.064
Insane score = 92.841

After
---- count ----
Count(1):75.71%, 178087
Count(2):1.07%, 2524
Count(3):0.55%, 1305
Count(4):6.66%, 15677
Count(5):9.83%, 23133
Count(6):2.78%, 6539
Count(7):3.37%, 7930
---- weight ----
Weight(1):96.89%, 2010118
Weight(2):0.24%, 5171
Weight(3):0.09%, 2011
Weight(4):0.78%, 16184
Weight(5):1.1%, 22972
Weight(6):0.39%, 8109
Weight(7):0.48%, 10014
---- score ----
Conservative score = 66.431
Normal score = 81.531
Agressive score = 89.08
Insane score = 92.855

No diffs for 10+ freq user log.

Change-Id: Ica4a7604507a2c91aaa7daf5bacf4fce4039f547
---
 native/jni/src/suggest/policyimpl/typing/scoring_params.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp b/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp
index 66637ac4b..104eb2a7a 100644
--- a/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp
+++ b/native/jni/src/suggest/policyimpl/typing/scoring_params.cpp
@@ -35,7 +35,7 @@ const float ScoringParams::OMISSION_COST = 0.4676f;
 const float ScoringParams::OMISSION_COST_SAME_CHAR = 0.399f;
 const float ScoringParams::OMISSION_COST_FIRST_CHAR = 0.5256f;
 const float ScoringParams::INSERTION_COST = 0.7248f;
-const float ScoringParams::TERMINAL_INSERTION_COST = 0.9828f;
+const float ScoringParams::TERMINAL_INSERTION_COST = 0.8128f;
 const float ScoringParams::INSERTION_COST_SAME_CHAR = 0.5508f;
 const float ScoringParams::INSERTION_COST_PROXIMITY_CHAR = 0.674f;
 const float ScoringParams::INSERTION_COST_FIRST_CHAR = 0.639f;
@@ -43,10 +43,10 @@ const float ScoringParams::TRANSPOSITION_COST = 0.5608f;
 const float ScoringParams::SPACE_SUBSTITUTION_COST = 0.339f;
 const float ScoringParams::ADDITIONAL_PROXIMITY_COST = 0.4576f;
 const float ScoringParams::SUBSTITUTION_COST = 0.3806f;
-const float ScoringParams::COST_NEW_WORD = 0.0292f;
+const float ScoringParams::COST_NEW_WORD = 0.0312f;
 const float ScoringParams::COST_SECOND_OR_LATER_WORD_FIRST_CHAR_UPPERCASE = 0.3224f;
 const float ScoringParams::DISTANCE_WEIGHT_LANGUAGE = 1.1214f;
-const float ScoringParams::COST_FIRST_LOOKAHEAD = 0.4786f;
+const float ScoringParams::COST_FIRST_LOOKAHEAD = 0.4836f;
 const float ScoringParams::COST_LOOKAHEAD = 0.00624f;
 const float ScoringParams::HAS_PROXIMITY_TERMINAL_COST = 0.06836f;
 const float ScoringParams::HAS_EDIT_CORRECTION_TERMINAL_COST = 0.0362f;