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Table 3 Examples of additional labeling functions on the Bacteria_Corpus

From: Extracting chemical reactions from text using Snorkel

Example labeling function

Description

LF_metacyc

If the chemical reaction is already in the MetaCyc curated database, we label TRUE

LF_chemical_elements

If one of the chemicals is a chemical element, we label FALSE

LF_group

If there is a close mention of a functional chemical group, we label FALSE

LF_treatment

If there is mention of keywords frequently associated with clinical trials, we label FALSE