use new bi-gram

5 files changed, 53 insertions, 59 deletions

diff --git a/utils/segment/ngseg.cpp b/utils/segment/ngseg.cpp
index ccb88d7..504cacc 100644
--- a/utils/segment/ngseg.cpp
+++ b/utils/segment/ngseg.cpp
@@ -39,7 +39,8 @@
 
 PhraseLargeTable * g_phrase_table = NULL;
 FacadePhraseIndex * g_phrase_index = NULL;
-Bigram * g_bigram = NULL;
+Bigram * g_system_bigram = NULL;
+Bigram * g_user_bigram = NULL;
 PhraseLookup * g_phrase_lookup = NULL;
 
 enum CONTEXT_STATE{
@@ -114,12 +115,14 @@ int main(int argc, char * argv[]){
     g_phrase_index->load(2, chunk);
 
     //init bi-gram
-    g_bigram = new Bigram;
-    g_bigram->attach("../../data/bigram.db", NULL);
+    g_system_bigram = new Bigram;
+    g_system_bigram->attach("../../data/bigram.db", ATTACH_READONLY);
+    g_user_bigram = new Bigram;
+
 
     //init phrase lookup
     g_phrase_lookup = new PhraseLookup(g_phrase_table, g_phrase_index,
-                                       g_bigram);
+                                       g_system_bigram, g_user_bigram);
 
 
     CONTEXT_STATE state, next_state;
diff --git a/utils/storage/export_interpolation.cpp b/utils/storage/export_interpolation.cpp
index 9fc6cde..333470e 100644
--- a/utils/storage/export_interpolation.cpp
+++ b/utils/storage/export_interpolation.cpp
@@ -57,7 +57,7 @@ int main(int argc, char * argv[]){
     phrase_index.load(2, chunk);
 
     Bigram bigram;
-    bigram.attach(bigram_filename, NULL);
+    bigram.attach(bigram_filename, ATTACH_READONLY);
 
     begin_data(output);
 
@@ -99,23 +99,19 @@ void gen_bigram(FILE * output, FacadePhraseIndex * phrase_index, Bigram * bigram
     fprintf(output, "\\2-gram\n");
 
     /* Retrieve all user items. */
-    GArray * system_items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
-    GArray * user_items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
+    GArray * items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
 
-    bigram->get_all_items(system_items, user_items);
-    assert(0 == user_items->len);
-    g_array_free(user_items, TRUE);
+    bigram->get_all_items(items);
 
     PhraseItem item;
 
-    for(size_t i = 0; i < system_items->len; i++){
-        phrase_token_t token = g_array_index(system_items, phrase_token_t, i);
-        SingleGram * system = NULL, * user = NULL;
-        bigram->load(token, system, user);
-        assert(NULL == user);
+    for(size_t i = 0; i < items->len; i++){
+        phrase_token_t token = g_array_index(items, phrase_token_t, i);
+        SingleGram * single_gram = NULL;
+        bigram->load(token, single_gram);
 
         BigramPhraseWithCountArray array = g_array_new(FALSE, FALSE, sizeof(BigramPhraseItemWithCount));
-        system->retrieve_all(array);
+        single_gram->retrieve_all(array);
         for(size_t j = 0; j < array->len; j++) {
             BigramPhraseItemWithCount * item = &g_array_index(array, BigramPhraseItemWithCount, j);
 
@@ -132,7 +128,7 @@ void gen_bigram(FILE * output, FacadePhraseIndex * phrase_index, Bigram * bigram
         g_array_free(array, TRUE);
     }
 
-    g_array_free(system_items, TRUE);
+    g_array_free(items, TRUE);
 }
 
 static const char * special_token_to_string(phrase_token_t token){
diff --git a/utils/storage/import_interpolation.cpp b/utils/storage/import_interpolation.cpp
index d53c3e8..d8d32e4 100644
--- a/utils/storage/import_interpolation.cpp
+++ b/utils/storage/import_interpolation.cpp
@@ -157,15 +157,14 @@ bool parse_bigram(FILE * input, PhraseLargeTable * phrases,
                     last_token = 0;
                     last_single_gram = NULL;
                 }
-                SingleGram * system_gram = NULL, * user_gram = NULL;
-                bigram->load(token1, system_gram, user_gram);
-                assert(system_gram == NULL);
+                SingleGram * single_gram = NULL;
+                bigram->load(token1, single_gram);
 
                 //create the new single gram
-                if ( user_gram == NULL )
-                    user_gram = new SingleGram;
+                if ( single_gram == NULL )
+                    single_gram = new SingleGram;
                 last_token = token1;
-                last_single_gram = user_gram;
+                last_single_gram = single_gram;
             }
             //save the freq
             guint32 total_freq = 0;
@@ -220,7 +219,7 @@ int main(int argc, char * argv[]){
     phrase_index.load(2, chunk);
 
     Bigram bigram;
-    bigram.attach(NULL, bigram_filename);
+    bigram.attach(bigram_filename, ATTACH_CREATE|ATTACH_READWRITE);
 
     taglib_init();
 
diff --git a/utils/training/estimate_interpolation.cpp b/utils/training/estimate_interpolation.cpp
index b7a56f1..feec95e 100644
--- a/utils/training/estimate_interpolation.cpp
+++ b/utils/training/estimate_interpolation.cpp
@@ -102,42 +102,38 @@ int main(int argc, char * argv[]){
     phrase_index.load(2, chunk);
 
     Bigram bigram;
-    bigram.attach("../../data/bigram.db", NULL);
+    bigram.attach("../../data/bigram.db", ATTACH_READONLY);
 
     Bigram deleted_bigram;
-    deleted_bigram.attach("../../data/deleted_bigram.db", NULL);
+    deleted_bigram.attach("../../data/deleted_bigram.db", ATTACH_READONLY);
 
-    GArray * system_items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
-    GArray * user_items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
-
-    deleted_bigram.get_all_items(system_items, user_items);
-    assert(0 == user_items->len);
-    g_array_free(user_items, TRUE);
+    GArray * deleted_items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
+    deleted_bigram.get_all_items(deleted_items);
 
     parameter_t lambda_sum = 0;
     int lambda_count = 0;
 
-    for ( int i = 0; i < system_items->len; ++i ){
-	phrase_token_t * token = &g_array_index(system_items, phrase_token_t, i);
-	SingleGram * system = NULL, * user = NULL;
-	bigram.load(*token, system, user);
-	assert(NULL == user);
-	SingleGram * deleted_system = NULL, * deleted_user = NULL;
-	deleted_bigram.load(*token, deleted_system, deleted_user);
-	assert(NULL == deleted_user);
+    for ( int i = 0; i < deleted_items->len; ++i ){
+	phrase_token_t * token = &g_array_index(deleted_items, phrase_token_t, i);
+	SingleGram * single_gram = NULL;
+	bigram.load(*token, single_gram);
+
+	SingleGram * deleted_single_gram = NULL;
+	deleted_bigram.load(*token, deleted_single_gram);
 	
-	parameter_t lambda = compute_interpolation(deleted_system, &phrase_index, system);
+	parameter_t lambda = compute_interpolation(deleted_single_gram, &phrase_index, single_gram);
 	
 	printf("lambda:%f\n", lambda);
 
 	lambda_sum += lambda;
 	lambda_count ++;
 
-	if (system) delete system;
-	delete deleted_system;
+	if (single_gram)
+            delete single_gram;
+	delete deleted_single_gram;
     }
 
     printf("average lambda:%f\n", (lambda_sum/lambda_count));
-    g_array_free(system_items, TRUE);
+    g_array_free(deleted_items, TRUE);
 }
 
diff --git a/utils/training/gen_ngram.cpp b/utils/training/gen_ngram.cpp
index 3233cee..6109e92 100644
--- a/utils/training/gen_ngram.cpp
+++ b/utils/training/gen_ngram.cpp
@@ -86,7 +86,7 @@ int main(int argc, char * argv[]){
     phrase_index.load(2, chunk);
     
     Bigram bigram;
-    bigram.attach(NULL, bigram_filename);
+    bigram.attach(bigram_filename, ATTACH_CREATE|ATTACH_READWRITE);
     
     
     char* linebuf = (char *)malloc ( 1024 * sizeof (char) );
@@ -113,31 +113,31 @@ int main(int argc, char * argv[]){
 		phrase_index.add_unigram_frequency(cur_token, 1);
 	}
 	if ( cur_token ){
-	    SingleGram * system = NULL, * user = NULL;
+	    SingleGram * single_gram = NULL;
 	    if ( 0 == last_token ){
 		if (train_pi_gram)
-		    bigram.load(sentence_start, system, user);
+		    bigram.load(sentence_start, single_gram);
 	    } else
-		bigram.load(last_token, system, user);
-	    assert(NULL == system);
-	    if ( NULL == user ){
-		user = new SingleGram;
+		bigram.load(last_token, single_gram);
+
+	    if ( NULL == single_gram ){
+		single_gram = new SingleGram;
 	    }
 	    guint32 freq, total_freq;
 	    //increase freq
-	    if (user->get_freq(cur_token, freq))
-                user->set_freq(cur_token, freq + 1);
+	    if (single_gram->get_freq(cur_token, freq))
+                single_gram->set_freq(cur_token, freq + 1);
             else
-                user->insert_freq(cur_token, 1);
+                single_gram->insert_freq(cur_token, 1);
 	    //increase total freq
-	    user->get_total_freq(total_freq);
-	    user->set_total_freq(total_freq + 1);
+	    single_gram->get_total_freq(total_freq);
+	    single_gram->set_total_freq(total_freq + 1);
 	    if ( 0 == last_token ){
 		if ( train_pi_gram )
-		    bigram.store(sentence_start, user);
+		    bigram.store(sentence_start, single_gram);
 	    }else
-		bigram.store(last_token, user);
-	    delete user;
+		bigram.store(last_token, single_gram);
+	    delete single_gram;
 	}
     }