predicate logic: - on  - in - near - prolog  graph based:  - semantic networks - frames  rule based:  - expert systems
predicate logic: - on  - in - near - prolog  graph based:  - semantic networks - frames  rule based:  - expert systems
-for nominal attributes, rules with logic predicates.  - for real valued attributes; hyper rectangles, decision tree, synthetic prototypes, hyper-ellipsoids.