Creating ontological metadata for digital library content and services

摘要

We use formal ontologies to represent know- ledge about digital library content and services. For mal ontologies define concepts with logic in a frame- inheritance structure. The expressiveness and precision of these structures supports computational reasoning that can be used in important ways. This paper focuses on the creation of ontological metadata. We create ontological content metadata by gener- Ating it from MARC (Machine Readable Cataloging) Data. MARC contains much information that is hard to Exploit computationally.