[CTAKES-246] DrugMentionAnnotator falls to infinite loop for some expression

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Component/s: ctakes-drug-ner
• Assignee: Unassigned
• Reporter: Chen Lin
• Created: 23/Sep/13 15:14
• Updated: 20/Dec/22 22:02
• Resolved: 20/Dec/22 22:02

Description

I was using an older version of cTAKES (Revision: 1479606, the version right before type-system changed for adding more eventMentioins from entities) to process some notes. One note seems trigger DrugMentionAnnotator to an infinite loop. The error message was attached below. This error didn't occur with the newest trunk version. I am thus wondering if this was a known bug and has been fixed in some way. My situation is that I cannot switch to the latest version of trunk, because my down-streaming pipeline was relying on the old eventMentions.

The actual sentences that trigger this loop is the following.

"Blah of increased pain him long standing MS Contin was increased from 15 mg. q12 hours to 60 mg. q.12 hours."
Oddly, it worked fine if the text was "q24 hours."

Error message:
Caused by: java.lang.StackOverflowError
at org.apache.ctakes.typesystem.type.textsem.EventMention.<init>(EventMention.java:45)
at org.apache.ctakes.typesystem.type.textsem.MedicationEventMention.<init>(MedicationEventMention.java:58)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.generateAdditionalNER(DrugMentionAnnotator.java:2117)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.statusChangePhraseGenerator(DrugMentionAnnotator.java:2100)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.generateDrugMentionsAndAnnotations(DrugMentionAnnotator.java:1397)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.generateAdditionalNER(DrugMentionAnnotator.java:2270)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.statusChangePhraseGenerator(DrugMentionAnnotator.java:2100)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.generateDrugMentionsAndAnnotations(DrugMentionAnnotator.java:1397)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.generateAdditionalNER(DrugMentionAnnotator.java:2270)
at org.apache.ctakes.drugner.ae.DrugMentionAnnotator.statusChangePhraseGenerator(DrugMentionAnnotator.java:2100)

Issue Links

• is related to: CTAKES-251 Infinite recursion in DrugMentionAnnotator.java
• relates to: CTAKES-251 Infinite recursion in DrugMentionAnnotator.java