/**
* @name improve_by_chopping
*
* Start with the current word of blobs and its classification. Find
* the worst blobs and try to divide them up to improve the ratings.
* As long as ratings are produced by the new blob splitting. When
* all the splitting has been accomplished all the ratings memory is
* reclaimed.
*/
void Wordrec::improve_by_chopping(WERD_RES *word,
BLOB_CHOICE_LIST_VECTOR *char_choices,
STATE *best_state,
BLOB_CHOICE_LIST_VECTOR *best_char_choices,
DANGERR *fixpt,
bool *best_choice_acceptable) {
inT32 blob_number;
float old_best;
int fixpt_valid = 1;
bool updated_best_choice = false;
while (1) { // improvement loop
if (!fixpt_valid) fixpt->clear();
old_best = word->best_choice->rating();
if (improve_one_blob(word->chopped_word, char_choices,
&blob_number, &word->seam_array,
fixpt, (fragments_guide_chopper &&
word->best_choice->fragment_mark()))) {
getDict().LogNewSplit(blob_number);
updated_best_choice =
getDict().permute_characters(*char_choices, word->best_choice,
word->raw_choice);
if (old_best > word->best_choice->rating()) {
set_n_ones(best_state, char_choices->length() - 1);
fixpt_valid = 1;
}
else {
insert_new_chunk(best_state, blob_number, char_choices->length() - 2);
fixpt_valid = 0;
}
if (chop_debug)
print_state("best state = ",
best_state, count_blobs(word->chopped_word->blobs) - 1);
} else {
break;
}
// Check if we should break from the loop.
bool done = false;
bool replaced = false;
if ((updated_best_choice &&
(*best_choice_acceptable =
getDict().AcceptableChoice(char_choices, word->best_choice,
fixpt, CHOPPER_CALLER, &replaced))) ||
char_choices->length() >= MAX_NUM_CHUNKS) {
done = true;
}
if (replaced) update_blob_classifications(word->chopped_word,
*char_choices);
if (updated_best_choice) CopyCharChoices(*char_choices, best_char_choices);
if (done) break;
}
if (!fixpt_valid) fixpt->clear();
}
/**********************************************************************
* improve_by_chopping
*
* Start with the current word of blobs and its classification. Find
* the worst blobs and try to divide them up to improve the ratings.
* As long as ratings are produced by the new blob splitting. When
* all the splitting has been accomplished all the ratings memory is
* reclaimed.
**********************************************************************/
void improve_by_chopping(register TWERD *word,
CHOICES_LIST *char_choices,
int fx,
STATE *best_state,
A_CHOICE *best_choice,
A_CHOICE *raw_choice,
SEAMS *seam_list,
DANGERR *fixpt,
STATE *chop_states,
INT32 *state_count,
STATE *correct_state,
INT32 pass) {
INT32 blob_number;
INT32 index; //to states
CHOICES_LIST choices = *char_choices;
float old_best;
int fixpt_valid = 1;
static INT32 old_count; //from pass1
do {
/* Improvement loop */
if (!fixpt_valid)
fixpt->index = -1;
old_best = class_probability (best_choice);
choices = improve_one_blob (word, *char_choices, fx,
&blob_number, seam_list, fixpt,
chop_states + *state_count, correct_state,
pass);
if (choices != NULL) {
LogNewSplit(blob_number);
permute_characters (choices,
class_probability (best_choice),
best_choice, raw_choice);
*char_choices = choices;
if (old_best > class_probability (best_choice)) {
set_n_ones (best_state, array_count (*char_choices) - 1);
fixpt_valid = 1;
}
else {
insert_new_chunk (best_state, blob_number,
array_count (*char_choices) - 2);
fixpt_valid = 0;
}
if (*state_count > 0) {
if (pass == 0) {
for (index = 0; index < *state_count; index++)
insert_new_chunk (&chop_states[index], blob_number,
array_count (*char_choices) - 2);
set_n_ones (&chop_states[index],
array_count (*char_choices) - 1);
}
(*state_count)++;
}
if (chop_debug)
print_state ("best state = ",
best_state, count_blobs (word->blobs) - 1);
if (first_pass)
chops_performed1++;
else
chops_performed2++;
}
}
while (choices &&
!AcceptableChoice (*char_choices, best_choice, raw_choice, fixpt) &&
!blob_skip && array_count (*char_choices) < MAX_NUM_CHUNKS);
if (pass == 0)
old_count = *state_count;
else {
if (old_count != *state_count)
fprintf (matcher_fp,
"Mis-matched state counts, " INT32FORMAT " pass1, "
INT32FORMAT " pass2\n", old_count, *state_count);
}
if (!fixpt_valid)
fixpt->index = -1;
}
