diff options
Diffstat (limited to 'extractor/rule_extractor_helper.cc')
| -rw-r--r-- | extractor/rule_extractor_helper.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/extractor/rule_extractor_helper.cc b/extractor/rule_extractor_helper.cc index 81b522f0..6410d147 100644 --- a/extractor/rule_extractor_helper.cc +++ b/extractor/rule_extractor_helper.cc @@ -88,6 +88,7 @@ bool RuleExtractorHelper::CheckTightPhrases( return true; } + // Check if the chunk extremities are aligned. int sentence_id = source_data_array->GetSentenceId(matching[0]); int source_sent_start = source_data_array->GetSentenceStart(sentence_id); for (size_t i = 0; i + 1 < chunklen.size(); ++i) { @@ -126,6 +127,7 @@ bool RuleExtractorHelper::FindFixPoint( int source_sent_len = source_data_array->GetSentenceLength(sentence_id); int target_sent_len = target_data_array->GetSentenceLength(sentence_id); + // Extend the target span to the left. if (prev_target_low != -1 && target_phrase_low != prev_target_low) { if (prev_target_low - target_phrase_low < min_target_gap_size) { target_phrase_low = prev_target_low - min_target_gap_size; @@ -135,6 +137,7 @@ bool RuleExtractorHelper::FindFixPoint( } } + // Extend the target span to the right. if (prev_target_high != -1 && target_phrase_high != prev_target_high) { if (target_phrase_high - prev_target_high < min_target_gap_size) { target_phrase_high = prev_target_high + min_target_gap_size; @@ -144,10 +147,12 @@ bool RuleExtractorHelper::FindFixPoint( } } + // Check target span length. if (target_phrase_high - target_phrase_low > max_rule_span) { return false; } + // Find the initial reflected source span. source_back_low = source_back_high = -1; FindProjection(target_phrase_low, target_phrase_high, target_low, target_high, source_back_low, source_back_high); @@ -157,6 +162,7 @@ bool RuleExtractorHelper::FindFixPoint( source_back_low = min(source_back_low, source_phrase_low); source_back_high = max(source_back_high, source_phrase_high); + // Stop if the reflected source span matches the previous source span. if (source_back_low == source_phrase_low && source_back_high == source_phrase_high) { return true; @@ -212,10 +218,14 @@ bool RuleExtractorHelper::FindFixPoint( prev_target_low = target_phrase_low; prev_target_high = target_phrase_high; + // Find the reflection including the left gap (if one was added). FindProjection(source_back_low, source_phrase_low, source_low, source_high, target_phrase_low, target_phrase_high); + // Find the reflection including the right gap (if one was added). FindProjection(source_phrase_high, source_back_high, source_low, source_high, target_phrase_low, target_phrase_high); + // Stop if the new re-reflected target span matches the previous target + // span. if (prev_target_low == target_phrase_low && prev_target_high == target_phrase_high) { return true; @@ -232,6 +242,7 @@ bool RuleExtractorHelper::FindFixPoint( source_phrase_low = source_back_low; source_phrase_high = source_back_high; + // Re-reflect the target span. FindProjection(target_phrase_low, prev_target_low, target_low, target_high, source_back_low, source_back_high); FindProjection(prev_target_high, target_phrase_high, target_low, |