Object-Oriented Knowledge Extraction using Universal Exploiters
  This paper contains analysis and extension of exploiters-based knowledge
extraction methods, which allow generation of new knowledge, based on the basic
ones. The main achievement of the paper is useful features of some universal
exploiters proof, which allow extending set of basic classes and set of basic
relations by finite set of new classes of objects and relations among them,
which allow creating of complete lattice. Proposed approach gives an
opportunity to compute quantity of new classes, which can be generated using
it, and quantity of different types, which each of obtained classes describes;
constructing of defined hierarchy of classes with determined subsumption
relation; avoidance of some problems of inheritance and more efficient
restoring of basic knowledge within the database.
