Chapter 1. Connectivity, value, and evolution of a semantic warehouse -- Chapter 2. Managing large volumes of interlinked text and knowledge with the knowledgestore -- Chapter 3. On semantic relation extraction over enterprise data -- Chapter 4. A hybrid concept learning approach to ontology enrichment -- Chapter 5. OOPS!: a pitfall-based system for ontology diagnosis -- Chapter 6. Exploring fuzzy association rules in semantic network enrichment improvement of the semantic indexing process -- Chapter 7. Keyword extraction based on selectivity and generalized selectivity -- Chapter 8. Detecting restriction class correspondences in linked data: the Bayes-ReCCE Bayesian model approach -- Chapter 9. Graph-based abstractive summarization: compression of semantic graphs -- Chapter 10. Mini-ME matchmaker and reasoner for the semantic web of things -- Chapter 11. Cataloguing the context of public SPARQL endpoints -- Chapter 12. Semantic web search through natural language dialogues -- Chapter 13. Ontology maintenance through semantic text mining: an application for IT governance domain -- Chapter 14. Geocoding tweets based on semantic web and ontologies -- Chapter 15. Semantic-based geospatial data integration with unique features.