In effect, OntoUSP conducts ontology induction, population, and knowledge extraction in a single integrated process.
given clusters c 1 , c 2 , in addition to merge vs. separate, On-toUSP evaluates a third option called abstraction, in which a new object cluster c is created, and ISA links are added from c i to c; the argument clusters in c are formed by merging that of c i 's.