- Research Highlights
- Structure-Preserving Semantic Matching
- Good-Enough Answers
- OK Kernel
- Adaptive Routing in P2P Overlays
- Architecture for P2P Reasoning
- Privacy in Resource Discovery
- Trust in P2P
- Ontology Matching Techniques
- Query Answering in Large, Open Systems
- Cautious Knowledge Sharing
- Trust in Ontological Entities
- Interaction-situated Semantic Alignment
- Massively Scalable WS Discovery
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Ontology Matching Techniques to Support Applications in Open Environments
In the context of the OpenKnowledge project we have developed two ontology matching techniques that support tools operating in open environments. Such tools typically re-use multiple, heterogeneous ontologies identified at runtime. The first algorithm, PowerMap is the core mapping component of the PowerAqua question answering system and enables a flexible mapping of a user query to dynamically selected ontologies from the Semantic Web. As such, PowerMap is a key component for bridging the semantic gap between the user’s terminology and the various conceptualisations used in online ontologies.
Our second algorithm, Scarlet, discovers semantic relations between the concepts of two ontologies by using the entire Semantic Web as its background knowledge. Scarlet derives relations by combining multiple facts that are dynamically identified and extracted from online ontologies. Therefore, this algorithm provides an added benefit in scenarios where appropriate background ontologies cannot be identified manually. For example, besides matching, we have used Scarlet for supporting tasks such as the enrichment of folksonomy tagspaces and ontology evolution.
More information is available in Deliverables 3.2, 8.4 and 8.5.
Related Publications:
- Sabou, M., d'Aquin, M., and Motta, E. (2008) Exploring the Semantic Web as Background Knowledge for Ontology Matching, Journal of Data Semantics.
- Fernandez, M., Lopez, V., Motta, E., Sabou, M., Uren, V., Vallet, D., and Castells, P. (2008) Semantic Search meets the Web, International Conference Semantic Computing ICSC 08, Santa Clara, USA.
- d'Aquin, M., Motta, E., Sabou, M., Angeletou, S., Gridinoc, L., Lopez, V., and Guidi, D. (2008) Towards a New Generation of Semantic Web Applications, IEEE Intelligent Systems, 23, 3, pp. 20-28.
- Gracia, J., Lopez, V., d'Aquin, M., Sabou, M., Motta, E., and Mena, E. (2007) Solving Semantic Ambiguity to Improve Semantic Web based Ontology Matching, Workshop: Workshop on Ontology Matching at The 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference.
- Lopez, V., Uren, V., Motta, E., and Pasin, M. (2007) AquaLog: An ontology-driven question answering system for organizational semantic intranets, Journal of Web Semantics, 5, 2, pp. 72-105, Elsevier.
- Sabou, M., Gracia, J., Angeletou, S., d'Aquin, M., and Motta, E. (2007) Evaluating the Semantic Web: A Task-based Approach, The 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference, Busan, Korea.
- Lopez, V., Sabou, M., and Motta, E. (2006) PowerMap: Mapping the Real Semantic Web on the Fly, International Semantic Web Conference., Georgia, Atlanta.
- Lopez, V., Motta, E., and Uren, . (2006) PowerAqua:Fishing the Semantic Web, European Semantic Web Conference 2006, Montenegro.
- Sabou, M., d'Aquin, M., and Motta, E. (2006) Using the Semantic Web as Background Knowledge for Ontology Mapping, Workshop: International Workshop on Ontology Matching (OM-2006) at International Semantic Web Conference (ISWC'06)