The Ontolingua Server: a tool for collaborative ontology construction
International Journal of Human-Computer Studies - Special issue: innovative applications of the World Wide Web
OKBC: a programmatic foundation for knowledge base interoperability
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
Building Large Knowledge-Based Systems; Representation and Inference in the Cyc Project
Building Large Knowledge-Based Systems; Representation and Inference in the Cyc Project
AI Research in the Context of a Multifunctional Knowledge Base: The BotanyKnowledge Base Project
AI Research in the Context of a Multifunctional Knowledge Base: The BotanyKnowledge Base Project
Ontologies in Web intelligence
Intelligent agents and their applications
Applying Information Retrieval Technology to Incremental Knowledge Management
EDCIS '02 Proceedings of the First International Conference on Engineering and Deployment of Cooperative Information Systems
Roles of Ontologies for Web Intelligence
ISMIS '02 Proceedings of the 13th International Symposium on Foundations of Intelligent Systems
VODKA: Variant objects discovering knowledge acquisition
Expert Systems with Applications: An International Journal
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The online world is populated by an increasing number of knowledge-rich resources, and there is a growing trend among authors to provide a semantic markup of these resources. This presents a tantalizing prospect. Perhaps the person-years of effort invested in building these knowledge-rich resources can be leveraged to create large-scale knowledge bases. The World Fact Book knowledge base project has been an experiment in exploring that prospect by constructing a large-scale KB from an SGML source document. The content of the KB is, in large part, derived from the CIA World Fact Book, and it covers a broad range of information about the world's nations.The authors describe the process used to construct the WFB KB, discuss some of the key representational issues addressed, and show how the resulting representation can be used to answer a variety of queries.