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Table 5 Comparison of causality strengths and ranks by the top-10 ranked pairs in the document frequency: The document frequency and causality strengths of both \( \alpha DCFC \) and dRiskKB have different range of values; so each value is scaled between zero and one

From: Disease causality extraction based on lexical semantics and document-clause frequency from biomedical literature

Disease Causality Pairs Document Frequency \( \alpha DCFC \) dRiskKB
Frequency Rank Causality Strength Rank Causality Strength Rank
Hepatitis C Liver Diseases 1.00 1 0.70 3 0.20 12
Hepatitis B Carcinoma, Hepatocellular 0.90 2 0.39 9 0.11 33
Aneurysm Hemorrhage 0.76 3 1.00 1 1.00 1
Hepatitis C Carcinoma, Hepatocellular 0.72 4 0.49 5 0.13 26
Thrombosis Infarction 0.63 5 0.53 4 0.41 4
Hepatitis B Liver Diseases 0.61 6 0.28 12 0.14 22
Rectal Neoplasms Adenoma 0.61 6 0.01 164 0.05 59
Glaucoma Blindness 0.59 8 0.89 2 0.08 45
Infarction Heart Failure 0.47 9 0.23 14 0.22 11
Hemorrhage Stroke 0.45 10 0.07 44 0.42 3