Welcome to the Finnish Ontology Library Service ONKI!

The ONKI service contains Finnish and international ontologies, vocabularies and thesauri needed for publishing your content cost-efficiently on the Semantic Web. Ontologies are conceptual models identifying the concepts of a domain. They contain machine "understandable" descriptions of the relations between the concepts.

ONKI is published and maintained by the Semantic Computing Research Group SeCo. It is part of the on-going project to building a national semantic web infrastructure to Finland (FinnONTO).

Begin here!

ONKI Browser 2 (recommended)

ONKI Browser 1 (old version)

What is ONKI?

Executive Summary

ONKI helps you to link your data globally, making it compatible with the semantic web. Check following links:

Use the ONKI Browser to check what ontologies are already available. Check below for tools and services ONKI provide for your applications.

For developers

Application interfaces and software components are provided for application developers. To use the APIs and components, please sign up first!

Web Service
REST
JavaScript Widget
Download ontologies (example)
RDF (coming soon)

For ontology/thesaurus owners

Share your ontologies and thesauri to others at ONKI:

upload ontology/thesaurus

Feedback and Documentation

Send us General feedback or send a mail to seco-ysofi@tkk.fi or leave your comment below.
Ontology specific feedback, go to ONKI Browser and select the relevant ontology.
Documentation

Mikä ONKI on? (in Finnish)

Latest news (ONKI Twitter Feed)

Please wait while our tweets load

If you can't wait - check out what we've been twittering

Follow maintenance reports and news about ONKI on Twitter: @secoONKI.

ONKI Living Lab at your service!

The ONKI is provided as a part of the ONKI Living Lab - an open lab for testing the latest semantic web technologies in practice, with real users like you. Currently, over 10 000 people are using ONKI each month.

We hope you like the ONKI service and enjoy using it for your purposes!

If you encounter any problems or have improvement ideas, please contact the ONKI team. We are also very much interested in your success stories in using ONKI - please share your experiences!

The ONKI Team

Kim Viljanen, head of ONKI Living Lab
Jouni Tuominen, ONKI servers and widgets
Eero Hyvönen, professor, head of research group

How can we help you?

Live presentations about ONKI: what it is? how to use it?
Support for creating and publishing ontologies.
Online technical support for using ONKI.
Co-operation in projects.
And more, please ask.

ONKI Living Lab is a project of the Semantic Computing Research Group (SeCo).