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 |