K. Siorpaes and M. Hepp, myOntology: The Marriage of Collective Intelligence and Ontology Engineering, in Proceedings of the Workshop Bridging the Gap between Semantic Web and Web 2.0 at the ESWC 2007. LNCS Springer: Innsbruck, Austria, June 7, 2007.
Gruber said he saw four different ways of adding meta-tags to material, ranging from the loosest to the most strict:
1.Folksonomy (informal, user-defined)
2.Controlled vocabularies (the user must deploy a set of defined terms)
3.Taxonomy (Pre-defined terms in which specific terms are subsets of more general terms)
4.Ontology (A rich set of relationships is mapped out among all the terms)
A. Plangprasopchok, K. Lerman, и L. Getoor. Proceedings of the 16th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, стр. 949--958. New York, NY, USA, ACM, (2010)
P. Mika. The Semantic Web - ISWC 2005, Proceedings of the 4th International Semantic Web Conference, ISWC 2005, Galway, Ireland, November 6-10, том 3729 из Lecture Notes in Computer Science, стр. 522-536. Springer, (2005)
F. Limpens, F. Gandon, и M. Buffa. Automated Software Engineering - Workshops, 2008. ASE Workshops 2008. 23rd IEEE/ACM International Conference on, (сентября 2008)
N. Tomuro, и A. Shepitsen. Proceedings of the 2009 Workshop on The People's Web Meets NLP: Collaboratively Constructed Semantic Resources, стр. 42--50. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)