Georgios Petasis, Vangelis Karkaletsis, Georgios Paliouras, Anastasia Krithara, Elias Zavitsanos. Ontology Population and Enrichment: State of the Art. In Georgios Paliouras, Constantine D. Spyropoulos, George Tsatsaronis, editors, Knowledge-Driven Multimedia Information Extraction and Ontology Evolution - Bridging the Semantic Gap. Volume 6050 of Lecture Notes in Computer Science, pages 134-166, Springer, 2011. [doi]