Marmelator/layout-parser
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Merge branch 'RED-10127' into 'main'

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RED-10127: Paragraphs with multiple table, appendix, figure can't be headlines

See merge request fforesight/layout-parser!257
This commit is contained in:
Kilian Schüttler 2024-12-06 14:49:48 +01:00
commit ed0371ca11
2 changed files with 11 additions and 3 deletions
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6
layoutparser-service/layoutparser-service-processor/src/main/java/com/knecon/fforesight/service/layoutparser/processor/services/classification/ClassificationPatterns.java
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@ -18,10 +18,14 @@ public class ClassificationPatterns {
public static final Pattern TABLE_OR_FIGURE_PATTERN = Pattern.compile(
public static final Pattern TABLE_OR_FIGURE_HEADLINE_PATTERN = Pattern.compile(
"^\\s*(?:table|continued\\s+table|appendix|figure)\\s+(?:[xvi]+|[a-z0-9]{1,3}(?:\\.[0-9]{1,3})*(?:-[0-9]{1,3})?)\\b",
Pattern.CASE_INSENSITIVE);
public static final Pattern TABLE_MID_SENTENCE_PATTERN = Pattern.compile(
"(?:table|continued\\s+table|appendix|figure)\\s+(?:[xvi]+|[a-z0-9]{1,3}(?:\\.[0-9]{1,3})*(?:-[0-9]{1,3})?)\\b",
Pattern.CASE_INSENSITIVE);
public static final Pattern ALPHANUMERIC = Pattern.compile("[a-zA-Z0-9]");
public static final Pattern NUMERIC = Pattern.compile("[0-9]+");

8
layoutparser-service/layoutparser-service-processor/src/main/java/com/knecon/fforesight/service/layoutparser/processor/services/classification/DocuMineClassificationService.java
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@ -6,7 +6,8 @@ import static com.knecon.fforesight.service.layoutparser.processor.services.clas
import static com.knecon.fforesight.service.layoutparser.processor.services.classification.ClassificationPatterns.HEADLINE_PATTERN_WITH_SLASHES;
import static com.knecon.fforesight.service.layoutparser.processor.services.classification.ClassificationPatterns.HEADLINE_WITH_2_IDENTIFER_PATTERN;
import static com.knecon.fforesight.service.layoutparser.processor.services.classification.ClassificationPatterns.HEADLINE_WITH_SINGLE_IDENTIFER_PATTERN;
import static com.knecon.fforesight.service.layoutparser.processor.services.classification.ClassificationPatterns.TABLE_OR_FIGURE_PATTERN;
import static com.knecon.fforesight.service.layoutparser.processor.services.classification.ClassificationPatterns.TABLE_MID_SENTENCE_PATTERN;
import static com.knecon.fforesight.service.layoutparser.processor.services.classification.ClassificationPatterns.TABLE_OR_FIGURE_HEADLINE_PATTERN;
import java.util.ArrayList;
import java.util.Comparator;
@ -83,7 +84,8 @@ public class DocuMineClassificationService {
Matcher atLeast3Matcher = AT_LEAST_3_CHARS_PATTERN.matcher(textBlock.toString());
Matcher headlineWithSlashesMatcher = HEADLINE_PATTERN_WITH_SLASHES.matcher(textBlock.toString());
Matcher amountMatcher = AMOUNT_PATTERN.matcher(textBlock.toString());
Matcher tableOrFigureMatcher = TABLE_OR_FIGURE_PATTERN.matcher(textBlock.toString());
Matcher tableOrFigureMatcher = TABLE_OR_FIGURE_HEADLINE_PATTERN.matcher(textBlock.toString());
Matcher tableMidSentenceMatcher = TABLE_MID_SENTENCE_PATTERN.matcher(textBlock.toString());
Matcher headlineWithSingleIdentifierMatcher = HEADLINE_WITH_SINGLE_IDENTIFER_PATTERN.matcher(textBlock.toString());
boolean isAtLeast3Characters = atLeast3Matcher.reset().find();
boolean headlineWithSlashesMatches = headlineWithSlashesMatcher.reset().matches();
@ -148,6 +150,8 @@ public class DocuMineClassificationService {
&& greaterOrEqualFontThanPageAverage(textBlock, page)//
&& PositionUtils.getApproxLineCount(textBlock) < 2.9//
&& (tableOrFigureMatcher.reset().find() || (headlineWithSingleIdentifierMatcher.reset().find() && listIdentifiers.isEmpty())) //
&& tableMidSentenceMatcher.reset().results()
.count() <= 1 //
&& !isAmount//
&& !headlineWithSlashesMatches) {