Table 2.

Term frequency-inverse document frequency SPMa

WordNumber of words appeared in sectionidf
Confidence51Log(4,695/51) = 0.465070711
Humans50Log(4,695/50) = 0.462728383
Observed46Log(4,695/46) = 0.452865702
Global37Log(4,695/37) = 0.427112572
Changes36Log(4,695/36) = 0.423871721

Source: Author

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