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Fig. 4 | Journal of Biomedical Semantics

Fig. 4

From: Identification of conclusive association entities in biomedical articles

Fig. 4

Analysis of the rareness-based indicator (IDF): IDF values of non-CAEs fall in the whole IDF spectrum, while nearly no CAEs have low IDF values (see the two dashed lines). IDF may thus be a useful indicator for CAE identification, especially for those entities with lower IDF values (i.e., the lower 30% of the IDF spectrum, see the solid line for probability gain of finding CAEs). However, many entities have IDF values fall in the middle parts of the spectrum (i.e., between 35 and 65%). For these entities, IDF may not work well (see the solid line for ProbGain)

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