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Table 7 Error analysis (number of facts in brackets)

From: KnowLife: a versatile approach for constructing a large knowledge graph for biomedical sciences

   Percentage based on text genre
Percentage Cause of error Encyclopaedic Scientific Social
   sources sources sources
8.16% (62) Preprocessing 38.71% (24) 3.23% (2) 58.06% (36)
27.24% (207) Entity Recognition 13.04% (27) 45.41% (94) 41.55% (86)
32.11% (244) Entity Disambiguation 12.30% (30) 26.23% (64) 61.48% (150)
1.97% (15) Coreferencing 13.33% (2) 13.33% (2) 73.33% (11)
13.68% (104) Nonexistent Relation 23.08% (24) 29.81% (31) 47.12% (49)
9.21% (70) Pattern Relation Duality 24.29% (17) 27.14% (19) 48.57% (34)
3.29% (25) Swapped left and right-hand entity 28.00% (7) 24.00% (6) 48.00% (12)
3.03% (23) Negation 17.39% (4) 21.74% (5) 60.87% (14)
1.32% (10) Factually Wrong 40.00% (4) 10.00% (1) 50.00% (5)