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Table 5 Label prediction by the CRF model on the test file

From: Combination of conditional random field with a rule based method in the extraction of PICO elements

Sentence Conditional probability calculated by the FRC model Sentence label
1 P (POPULATION | Phrase1) = p1 p4 > p1, p2, p3 ➔label = OTHER
P (INTERVENTION | Phrase1) = p2
P (OUTCOME | Phrase1) = p3
P (OTHER | Phrase1) = p4
1 P (POPULATION | Phrase1) = p1 p2 > p1, p4, p3 ➔label = INTERVENTION
P (INTERVENTION | Phrase1) = p2
P (OUTCOME | Phrase1) = p3
P (OTHER | Phrase1) = p4
1 P (POPULATION | Phrase1) = p1 p1 > p2, p4, p3 ➔label = POPULATION
P (INTERVENTION | Phrase1) = p2
P (OUTCOME | Phrase1) = p3
P (OTHER | Phrase1) = p4