A New Biomedical Passage Retrieval Framework for Laboratory Medicine: Leveraging Domain-specific Ontology, Multilevel PRF, and Negation Differential Weighting

Table 3

Opposite relation between negation status and case status of example sentences reported in the laboratory test results (the bold words in the sentence denotes concepts that were examined for negation status).

Sentences	Case status	Negation status
AFP is normal	Normal	Negated
No anemia	Normal	Negated
HIV test is negative	Normal	Negated
Eosinophil has been increased	Abnormal	Affirmed
The uric acid concentration has increased	Abnormal	Affirmed
Bilirubin is high	Abnormal	Affirmed