Table 6 The precision of our previous approach introduced in [18] regarding “outside the given hierarchy” issue

Sub-hierarchy

# of All newly formalized concepts

# of Newly formalized concepts included in NCIt

# of Newly formalized concepts included in UMLS

# of Formalized concepts in NCIt

# of Concepts in same sub-hierarchy

# of Concepts in other sub-hierarchy of NCIt

Precison (%)

# of Validated via UMLS

# of Validated concepts with overlapping semantic types

# of Validated concepts with semantic inconsistencies

Precison (%)