The Ontology Alignment Source
Ontology alignment is the automated resolution of semantic correspondences between the representational elements of heterogenous sytems. Ontology alignment (including ontology/schema matching/mapping) is a critical technical challenge for the dynamic semantic integration of information resources as well as for ontology-mediated cognitive agent learning.
The Ontology Alignment Source supports the ontology alignment research community by providing a forum that promotes the sharing and comparison of research data. This site provides access to tools, test data, and metrics for ontology alignment algorithm development and evaluation. We also publish ontology alignment experiment data contributed by members of the research community. This allows for comparson of various ontology alignment opproaches.
In conjunction with this effort, we organized the I3CON, Information Interpretation and Integration Conference, held in August 2004. We have also participated in the organization of EON, Evaluation of ONtology tools in November 2004, held as part of ISWC 2004 and the Integrating Ontologies Workshop in October 2005, held as part of the Knowledge Capture Conference. Each event involved benchmark experiments that compared the performance of different ontology alignment tools on standard ontology pairs.
To participate in this research community effort, please email firstname.lastname@example.org. Better yet, join our mailing list!
To facilitate the sharing of research data, we have defined an Ontology Alignment
Ontology and an Alignment Evaluation Ontology, along with "upper" ontologies
capturing the concepts for the broader category of ontology operations.
These ontologies are provided in various ontology formats below.
- Alignment Evaluation
- Ontology Operation
- Operation Evaluation
In a paper entitled "The Semantics of Ontology Alignment,"
we explain these ontologies in more detail. We welcome your
comments on these ontologies.
The above ontologies provide a framework for generating files that declare
alignments between elements in heterogeneous ontologies and that reporting
evaluations of these alignments.
Below are some sample alignment and alignment evaluation files.
Ontology Alignment is an emerging field of research. There are now a number of projects developing tools and infrastructures for ontology alignment, some of which are listed below.
- Alignment API INRIA Rhône-Alpes, France
- COMA++/COMA University of Leipzig, Germany
- CROSI University of Southampton/Hewlett Packard Laboratories, UK
- CtxMatch University of Trento, Italy
- eTuner/iMap/Glue/LSD University of Illinois, University of Washington, USA
- Falcon-AO Southeast University, Nanjing, China
- FOAM [NOM, QOM, APFEL] University of Karlsruhe, Germany
- LOM Teknowledge Corporation, Palo Alto, USA
- MapOnto University of Toronto/Rutgers University, Canada/USA
- MetaQuerier University of Illinois at Urbana-Champaign, USA
- OLA INRIA Rhône-Alpes/Université de Montreal, France/Canada
- OWL Ontology Aligner DERI, Austria
- PROMPT Stanford University, USA
- Similarity Flooding Stanford University, USA
- S-Match University of Trento, Italy
- ToMAS/Clio University of Toronto, Canada
The Ontology Alignment Source is developed and maintained as part of the
Ontology Translation Protocol (Ontrapro) IR&D Program at Lockheed Martin
Advanced Technology Laboratories.
For more information about Ontrapro, contact
Benjamin Ashpole or Todd Hughes.
- The content of the "Related Projects" section is used with kind permission of Pavel Shvaiko of University of Trento, Italy, who hosts the Ontology Matching site, another excellent resource for those interested in ontology alignment.
Last Updated 2005-12-30