CYC: a large-scale investment in knowledge infrastructure
Communications of the ACM
AquaLog: An ontology-driven question answering system for organizational semantic intranets
Web Semantics: Science, Services and Agents on the World Wide Web
Document Visualization Based on Semantic Graphs
IV '09 Proceedings of the 2009 13th International Conference Information Visualisation
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The focus of this paper is a question answering system, where the answers are retrieved from a collection of textual documents. The system also includes automatic document summarization and document visualization by means of a semantic graph. The information extracted from the documents is stored as subject-predicate-object triplets, and the indexed terms are expanded using Cyc, a large common sense ontology.