Joelle Nebbe-Mornod's Library tagged ontology →  View Popular

Protégé is a free, open source ontology editor and knowledge-base framework. The Protégé platform supports two main ways of modeling ontologies via the Protégé-Frames and Protégé-OWL editors. Protégé ontologies can be exported into a variety of formats in

protege.stanford.edu/ - Preview

semantic_web ontology rdf owl xml framework import0409

While tags are widely used in Web 2.0 services, their lack of machine-understandable meaning can be a problem for information retrieval. Especially people can use tags that have different meanings depending on the context (e.g.: "apple"), but can also use different tags to express the same thing (e.g.: "semweb", "semantic_web"). Moreover, as tags as not related to each other, finding content might be an issue, especially to browse the long tail.

MOAT aims to solve this by providing a way for users to define meaning(s) of their tag(s) using URIs of Semantic Web resources (such as URIs from DBpedia, geonames ... or any knowledge base). Thanks to those relationships between tags and URIs of existing concepts, they can annotate content with those URIs rather than free-text tags, leveraging content into Semantic Web, by linking data together. This means modeling facts such as "In this blog post, I use the tag "apple" and I refer to <http://dbpedia.com/resource/Apple_Records>, not the fruit nor the computer brand". Moreover, these tag meanings can be shared between people, providing an architecture of participation to define and exchange meanings of tags (as URIs) within a community of users.

moat-project.org - Preview

semantic ontology tags links folksonomy

Knoodl facilitates community-oriented development of OWL based ontologies and RDF knowledgebases. It also serves as a semantic technology platform, offering a service based interface so that communities can build their own semantic applications using thei

knoodl.com/home.html - Preview

semantic data ontology taxonomy rdf owl cloud

sioc-project.org - Preview

sioc rdf semantic ontology community