Jane Terry Nutter

AAAI Conference 1987 Conference Paper

Assimilation: A Strategy for Implementing Self-Reorganizing Knowledge Bases

• Jane Terry Nutter

Assimilation is a process by which a knowledge base restructures itself to improve the organization of and access to information in the base. This paper presents a strategy for implementing assimilation in propositional knowledge bases which distinguish between the axioms of the system’s knowledge (called the context) and the derived consequences of those axioms (called the belief space). The strategy in question takes advantage of housekeeping phases in which the system discards accumulated clutter to discover useful patterns of access on the basis of which the context can be reorganized. Unused axioms are replaced by their more useful consequences; derivable generalizations that shorten common inference paths are added to the belief space.

IJCAI Conference 1987 Conference Paper

Uncertainty and Probability

• Jane Terry Nutter

AAAI Conference 1983 Conference Paper

Default Reasoning Using Monotonic Logic: A Modest Proposal

• Jane Terry Nutter

This paper presents a simple extension of first order predicate logic to include a default operator. Rules of inference governing the operator are specified, and a model theory for interpreting sentences involving default operstor is developed based on standard Tarslian semantics. The Resulting system is trivially sound. It is argued that (a) this logic provides an adequate basis for default reasoning in A.I. systems, and (b) unlike most logics proposed for this purpose, it retains the virtues of standard first order logic, including both montonicity and simplicity.