[CTAKES-528] annotation confidence is always 0

• Type: Wish
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.0.0
• Component/s: ctakes-type-system
• Assignee: Unassigned
• Reporter: ouyeyu
• Created: 06/Dec/18 00:06
• Updated: 20/Dec/22 20:47

Description

I noticed that annotation.getConfidence() and umlsConcept.getScore() both always return 0.
To figure out why this happens, 
First, I found in ctakes/ctakes-dictionary-lookup/src/main/java/org/apache/ctakes/dictionary/lookup/ae/NamedEntityLookupConsumerImpl.java, the consumeHits function creates
IdentifiedAnnotation neAnnot = new IdentifiedAnnotation(jcas);
No confidence and score are added into neAnnot. 
 
Then I go to 
apache-ctakes-4.0.0-src/ctakes-type-system/target/generated-sources/jcasgen/org/apache/ctakes/typesystem/type/textsem/IdentifiedAnnotation.java
  public float getConfidence()

{     if (IdentifiedAnnotation_Type.featOkTst && ((IdentifiedAnnotation_Type)jcasType).casFeat_confidence == null)       jcasType.jcas.throwFeatMissing("confidence", "org.apache.ctakes.typesystem.type.textsem.IdentifiedAnnotation");     return jcasType.ll_cas.ll_getFloatValue(addr, ((IdentifiedAnnotation_Type)jcasType).casFeatCode_confidence);}

 
I further goes to the UIMA repo. 
/uimaj/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java
/uimaj/trunk/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java
  @Override
public final float ll_getFloatValue(int fsRef, int featureCode)

{     return int2float(ll_getIntValue(fsRef, featureCode));   }

 
  @Override
public final int ll_getIntValue(int fsRef, int featureCode)

{     return this.getHeap().heap[(fsRef + this.svd.casMetadata.featureOffset[featureCode])];   }

 
Does this mean in the heap, confidence and score are hardcoded as 0? And how is the heap created?
Is this always returning 0 a feature or a bug?