Learn More
Digital library (DL) research and development has concentrated primarily on collections and on the services to build and access them (Arms, 2000). To some extent, there has also been a focus on users and uses and on how well digital library constructions satisfy them (Borgman, 2000). A class of DL components has been missing from this development. This(More)
Concepts and their interrelationships are the fundamental building blocks for representing the phenomena investigated in mathematics, science, and engineering (MSE). The knowledge represented in learning materials for the sciences is typically organized around term-based or "weakly-structured" models of concepts and their interrelationships. We introduce a(More)
  • 1