FUNCTION: Learning and reinforcement technology is used in a very narrow and specific fashion to make changes in the local constructs. This is local and global learning, where the changes that are being made are for the purpose of creating a better categorization and representation of basic data structures.

ARCHITECTURE: Learning introduces significant modifications to data structures, particularly in the themespace and in indices.

TECHNOLOGY: The technology here uses a simple weight profile to retrieve data. The weight profile can be made adaptive thougth the introduction of neural networks, the voting procedure, and full text retrieval methods based on the industry standards.

1999 Paul S. Prueitt