Semantic Web Web site development 20 Knowledge management 13 Artificial intelligence 12 Multimedia systems 12 Web services 12 Ontologies (Information retrieval) 10 Metadata 9 Ontology 9 Database management 8 World Wide Web 8 Computational grids (Computer systems) 6 Expert systems (Computer science) 6 Fuzzy logic 6 Information retrieval 5 Online social networks 5 Semantic integration (Computer systems) 5 XML (Document markup language) 5 Cataloging of computer network resources 4 Data processing 4 Document clustering 4 Information storage and retrieval systems 4 Knowledge acquisition (Expert systems) 4 Semantic networks (Information theory) 4 Text processing (Computer science) 4 Autonomous robots 3 Context-aware computing 3 Control systems 3 Development 3 Information society 3