int main(int argc, char * argv[]){
SystemTableInfo2 system_table_info;
bool retval = system_table_info.load(SYSTEM_TABLE_INFO);
if (!retval) {
fprintf(stderr, "load table.conf failed.\n");
exit(ENOENT);
}
FacadePhraseIndex phrase_index;
const pinyin_table_info_t * phrase_files =
system_table_info.get_default_tables();
if (!load_phrase_index(phrase_files, &phrase_index))
exit(ENOENT);
Bigram bigram;
bigram.attach(SYSTEM_BIGRAM, ATTACH_READONLY);
Bigram deleted_bigram;
deleted_bigram.attach(DELETED_BIGRAM, ATTACH_READONLY);
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 (size_t 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_single_gram, &phrase_index, single_gram);
printf("token:%d lambda:%f\n", *token, lambda);
lambda_sum += lambda;
lambda_count ++;
if (single_gram)
delete single_gram;
delete deleted_single_gram;
}
printf("average lambda:%f\n", (lambda_sum/lambda_count));
g_array_free(deleted_items, TRUE);
return 0;
}
int main(int argc, char * argv[]){
FacadePhraseIndex phrase_index;
//gb_char binary file
MemoryChunk * chunk = new MemoryChunk;
chunk->load("gb_char.bin");
phrase_index.load(1, chunk);
//gbk_char binary file
chunk = new MemoryChunk;
chunk->load("gbk_char.bin");
phrase_index.load(2, chunk);
Bigram bigram;
bigram.attach("bigram.db", ATTACH_READONLY);
Bigram deleted_bigram;
deleted_bigram.attach("deleted_bigram.db", ATTACH_READONLY);
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 < 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_single_gram, &phrase_index, single_gram);
printf("token:%d lambda:%f\n", *token, lambda);
lambda_sum += lambda;
lambda_count ++;
if (single_gram)
delete single_gram;
delete deleted_single_gram;
}
printf("average lambda:%f\n", (lambda_sum/lambda_count));
g_array_free(deleted_items, TRUE);
return 0;
}
int main(int argc, char * argv[]){
SingleGram single_gram;
const guint32 total_freq = 16;
assert(single_gram.set_total_freq(total_freq));
phrase_token_t tokens[6] = { 2, 6, 4, 3, 1, 3};
guint32 freqs[6] = { 1, 2, 4, 8, 16, 32};
guint32 freq;
for(size_t i = 0; i < 6 ;++i){
if ( single_gram.get_freq(tokens[i], freq))
assert(single_gram.set_freq(tokens[i], freqs[i]));
else
assert(single_gram.insert_freq(tokens[i], freqs[i]));
}
single_gram.get_freq(3, freq);
assert(freq == 32);
printf("--------------------------------------------------------\n");
PhraseIndexRange range;
BigramPhraseArray array = g_array_new(FALSE, FALSE, sizeof(BigramPhraseItem));
range.m_range_begin = 0; range.m_range_end = 8;
single_gram.search(&range,array);
for ( size_t i = 0; i < array->len; ++i){
BigramPhraseItem * item = &g_array_index(array, BigramPhraseItem, i);
printf("item:%d:%f\n", item->m_token, item->m_freq);
}
assert(single_gram.get_total_freq(freq));
assert(freq == total_freq);
Bigram bigram;
assert(bigram.attach("/tmp/test.db", ATTACH_CREATE|ATTACH_READWRITE));
bigram.store(1, &single_gram);
assert(single_gram.insert_freq(5, 8));
assert(single_gram.remove_freq(1, freq));
single_gram.set_total_freq(32);
bigram.store(2, &single_gram);
SingleGram * gram = NULL;
for ( int m = 1; m <= 2; ++m ){
printf("--------------------------------------------------------\n");
bigram.load(m, gram);
g_array_set_size(array, 0);
range.m_range_begin = 0; range.m_range_end = 8;
gram->search(&range,array);
for ( size_t i = 0; i < array->len; ++i){
BigramPhraseItem * item = &g_array_index(array, BigramPhraseItem, i);
printf("item:%d:%f\n", item->m_token, item->m_freq);
}
delete gram;
}
printf("--------------------------------------------------------\n");
assert(single_gram.get_total_freq(freq));
printf("total_freq:%d\n", freq);
g_array_free(array, TRUE);
GArray * items = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
bigram.get_all_items(items);
printf("----------------------system----------------------------\n");
for ( size_t i = 0; i < items->len; ++i){
phrase_token_t * token = &g_array_index(items, phrase_token_t, i);
printf("item:%d\n", *token);
}
assert(bigram.load_db("/tmp/test.db"));
assert(bigram.save_db("/tmp/test.db"));
g_array_free(items, TRUE);
/* mask out all index items. */
bigram.mask_out(0x0, 0x0);
return 0;
}
int main(int argc, char * argv[]){
FILE * input = stdin;
setlocale(LC_ALL, "");
GError * error = NULL;
GOptionContext * context;
context = g_option_context_new("- generate n-gram");
g_option_context_add_main_entries(context, entries, NULL);
if (!g_option_context_parse(context, &argc, &argv, &error)) {
g_print("option parsing failed:%s\n", error->message);
exit(EINVAL);
}
SystemTableInfo system_table_info;
bool retval = system_table_info.load(SYSTEM_TABLE_INFO);
if (!retval) {
fprintf(stderr, "load table.conf failed.\n");
exit(ENOENT);
}
PhraseLargeTable2 phrase_table;
/* init phrase table */
MemoryChunk * chunk = new MemoryChunk;
chunk->load(SYSTEM_PHRASE_INDEX);
phrase_table.load(chunk);
FacadePhraseIndex phrase_index;
const pinyin_table_info_t * phrase_files =
system_table_info.get_table_info();
if (!load_phrase_index(phrase_files, &phrase_index))
exit(ENOENT);
Bigram bigram;
bigram.attach(bigram_filename, ATTACH_CREATE|ATTACH_READWRITE);
char* linebuf = NULL; size_t size = 0;
phrase_token_t last_token, cur_token = last_token = 0;
while( getline(&linebuf, &size, input) ){
if ( feof(input) )
break;
if ( '\n' == linebuf[strlen(linebuf) - 1] ) {
linebuf[strlen(linebuf) - 1] = '\0';
}
TAGLIB_PARSE_SEGMENTED_LINE(&phrase_index, token, linebuf);
last_token = cur_token;
cur_token = token;
/* skip null_token in second word. */
if ( null_token == cur_token )
continue;
/* training uni-gram */
phrase_index.add_unigram_frequency(cur_token, 1);
/* skip pi-gram training. */
if ( null_token == last_token ){
if ( !train_pi_gram )
continue;
last_token = sentence_start;
}
/* train bi-gram */
SingleGram * single_gram = NULL;
bigram.load(last_token, single_gram);
if ( NULL == single_gram ){
single_gram = new SingleGram;
}
guint32 freq, total_freq;
/* increase freq */
if (single_gram->get_freq(cur_token, freq))
assert(single_gram->set_freq(cur_token, freq + 1));
else
assert(single_gram->insert_freq(cur_token, 1));
/* increase total freq */
single_gram->get_total_freq(total_freq);
single_gram->set_total_freq(total_freq + 1);
bigram.store(last_token, single_gram);
delete single_gram;
}
free(linebuf);
if (!save_phrase_index(phrase_files, &phrase_index))
exit(ENOENT);
return 0;
}
int main(int argc, char * argv[]){
int i = 1;
bool train_pi_gram = true;
const char * bigram_filename = "bigram.db";
setlocale(LC_ALL, "");
while ( i < argc ){
if ( strcmp("--help", argv[i]) == 0){
print_help();
exit(0);
}else if ( strcmp("--skip-pi-gram-training", argv[i]) == 0 ){
train_pi_gram = false;
}else if ( strcmp("--bigram-file", argv[i]) == 0){
if ( ++i >= argc ) {
print_help();
exit(EINVAL);
}
bigram_filename = argv[i];
}else{
print_help();
exit(EINVAL);
}
++i;
}
g_phrases = new PhraseLargeTable;
//init phrase lookup
MemoryChunk * chunk = new MemoryChunk;
chunk->load("phrase_index.bin");
g_phrases->load(chunk);
FacadePhraseIndex phrase_index;
//gb_char binary file
chunk = new MemoryChunk;
chunk->load("gb_char.bin");
phrase_index.load(1, chunk);
//gbk_char binary file
chunk = new MemoryChunk;
chunk->load("gbk_char.bin");
phrase_index.load(2, chunk);
Bigram bigram;
bigram.attach(bigram_filename, ATTACH_CREATE|ATTACH_READWRITE);
char* linebuf = NULL;
size_t size = 0;
phrase_token_t last_token, cur_token = last_token = 0;
while( getline(&linebuf, &size, stdin) ){
if ( feof(stdin) )
break;
linebuf[strlen(linebuf)-1] = '\0';
glong phrase_len = 0;
utf16_t * phrase = g_utf8_to_utf16(linebuf, -1, NULL, &phrase_len, NULL);
phrase_token_t token = 0;
if ( 0 != phrase_len ) {
int result = g_phrases->search( phrase_len, phrase, token);
if ( ! (result & SEARCH_OK) )
token = 0;
g_free(phrase);
phrase = NULL;
}
last_token = cur_token;
cur_token = token;
/* skip null_token in second word. */
if ( null_token == cur_token )
continue;
//training uni-gram
phrase_index.add_unigram_frequency(cur_token, 1);
/* skip pi-gram training. */
if ( null_token == last_token ){
if ( !train_pi_gram )
continue;
last_token = sentence_start;
}
//train bi-gram
SingleGram * single_gram = NULL;
bigram.load(last_token, single_gram);
if ( NULL == single_gram ){
single_gram = new SingleGram;
}
guint32 freq, total_freq;
//increase freq
if (single_gram->get_freq(cur_token, freq))
assert(single_gram->set_freq(cur_token, freq + 1));
else
assert(single_gram->insert_freq(cur_token, 1));
//increase total freq
single_gram->get_total_freq(total_freq);
single_gram->set_total_freq(total_freq + 1);
bigram.store(last_token, single_gram);
delete single_gram;
}
free(linebuf);
MemoryChunk * new_chunk = new MemoryChunk;
phrase_index.store(1, new_chunk);
new_chunk->save("gb_char.bin");
phrase_index.load(1, new_chunk);
new_chunk = new MemoryChunk;
phrase_index.store(2, new_chunk);
new_chunk->save("gbk_char.bin");
phrase_index.load(2, new_chunk);
return 0;
}
int main(int argc, char * argv[]){
int i = 1;
bool train_pi_gram = true;
const char * bigram_filename = "bigram.db";
setlocale(LC_ALL, "");
while ( i < argc ){
if ( strcmp("--help", argv[i]) == 0){
print_help();
exit(0);
}else if ( strcmp("--skip-pi-gram-training", argv[i]) == 0 ){
train_pi_gram = false;
}else if ( strcmp("--bigram-file", argv[i]) == 0){
if ( ++i >= argc ) {
print_help();
exit(EINVAL);
}
bigram_filename = argv[i];
}else{
print_help();
exit(EINVAL);
}
++i;
}
PhraseLargeTable2 phrase_table;
/* init phrase table */
MemoryChunk * chunk = new MemoryChunk;
chunk->load("phrase_index.bin");
phrase_table.load(chunk);
FacadePhraseIndex phrase_index;
if (!load_phrase_index(&phrase_index))
exit(ENOENT);
Bigram bigram;
bigram.attach(bigram_filename, ATTACH_CREATE|ATTACH_READWRITE);
PhraseTokens tokens;
memset(tokens, 0, sizeof(PhraseTokens));
phrase_index.prepare_tokens(tokens);
char* linebuf = NULL;
size_t size = 0;
phrase_token_t last_token, cur_token = last_token = 0;
while( getline(&linebuf, &size, stdin) ){
if ( feof(stdin) )
break;
linebuf[strlen(linebuf)-1] = '\0';
glong phrase_len = 0;
ucs4_t * phrase = g_utf8_to_ucs4(linebuf, -1, NULL, &phrase_len, NULL);
phrase_token_t token = null_token;
if ( 0 != phrase_len ) {
phrase_index.clear_tokens(tokens);
int result = phrase_table.search(phrase_len, phrase, tokens);
int num = get_first_token(tokens, token);
if ( !(result & SEARCH_OK) )
token = null_token;
g_free(phrase);
phrase = NULL;
}
last_token = cur_token;
cur_token = token;
/* skip null_token in second word. */
if ( null_token == cur_token )
continue;
/* training uni-gram */
phrase_index.add_unigram_frequency(cur_token, 1);
/* skip pi-gram training. */
if ( null_token == last_token ){
if ( !train_pi_gram )
continue;
last_token = sentence_start;
}
/* train bi-gram */
SingleGram * single_gram = NULL;
bigram.load(last_token, single_gram);
if ( NULL == single_gram ){
single_gram = new SingleGram;
}
guint32 freq, total_freq;
/* increase freq */
if (single_gram->get_freq(cur_token, freq))
assert(single_gram->set_freq(cur_token, freq + 1));
else
assert(single_gram->insert_freq(cur_token, 1));
/* increase total freq */
single_gram->get_total_freq(total_freq);
single_gram->set_total_freq(total_freq + 1);
bigram.store(last_token, single_gram);
delete single_gram;
}
phrase_index.destroy_tokens(tokens);
free(linebuf);
if (!save_phrase_index(&phrase_index))
exit(ENOENT);
return 0;
}
int main(int argc, char * argv[]){
int i = 1;
bool train_pi_gram = true;
const char * bigram_filename = "deleted_bigram.db";
setlocale(LC_ALL, "");
while ( i < argc ){
if ( strcmp("--help", argv[i]) == 0){
print_help();
exit(0);
} else if ( strcmp("--skip-pi-gram-training", argv[i]) == 0 ){
train_pi_gram = false;
} else if ( strcmp("--deleted-bigram-file", argv[i]) == 0){
if ( ++i >= argc ) {
print_help();
exit(EINVAL);
}
bigram_filename = argv[i];
} else {
print_help();
exit(EINVAL);
}
++i;
}
/* load phrase table. */
PhraseLargeTable2 phrase_table;
MemoryChunk * new_chunk = new MemoryChunk;
new_chunk->load("phrase_index.bin");
phrase_table.load(new_chunk);
FacadePhraseIndex phrase_index;
if (!load_phrase_index(&phrase_index))
exit(ENODATA);
Bigram bigram;
bigram.attach(bigram_filename, ATTACH_CREATE|ATTACH_READWRITE);
char* linebuf = NULL; size_t size = 0;
phrase_token_t last_token, cur_token = last_token = 0;
while( getline(&linebuf, &size, stdin) ){
if ( feof(stdin) )
break;
if ( '\n' == linebuf[strlen(linebuf) - 1] ) {
linebuf[strlen(linebuf) - 1] = '\0';
}
TAGLIB_PARSE_SEGMENTED_LINE(&phrase_index, token, linebuf);
last_token = cur_token;
cur_token = token;
/* skip null_token in second word. */
if ( null_token == cur_token )
continue;
/* skip pi-gram training. */
if ( null_token == last_token ){
if ( !train_pi_gram )
continue;
last_token = sentence_start;
}
/* train bi-gram */
SingleGram * single_gram = NULL;
bigram.load(last_token, single_gram);
if ( NULL == single_gram ){
single_gram = new SingleGram;
}
guint32 freq, total_freq;
//increase freq
if (single_gram->get_freq(cur_token, freq))
assert(single_gram->set_freq(cur_token, freq + 1));
else
assert(single_gram->insert_freq(cur_token, 1));
//increase total freq
single_gram->get_total_freq(total_freq);
single_gram->set_total_freq(total_freq + 1);
bigram.store(last_token, single_gram);
delete single_gram;
}
free(linebuf);
return 0;
}