Download: SWETO Ontology + Schema is available under the Attribution-NonCommercial-NoDerivs 2.0

(Creative Commons) with the following conditions taking precedence over the Creative Commons License: You may NOT distribute this work in any manner.

• Ontology schema: v_1_4.owl (old versions: v_1_3.owl, v_1_2.owl)
• SWETO Small (Instances, about 1MB zipped), schema: testbed_v2_1.rdfs
• SWETO Medium (Instances, about 1MB zipped)
• SWETO Big (Instances, about 25MB zipped)

Publications:

• B. Aleman-Meza, C. Halaschek, A. Sheth, I.B. Arpinar and G. Sannapareddy, SWETO: Large-Scale Semantic Web Test-bed, Ontology in Action Workshop (co-located with The 16th International Conference on Software Engineering & Knowledge Engineering), pp. 490-493, Banff, Alberta, Canada, June 20-24, 2004 (also listed in: CiteSeer, Scientific Commons, Libra, citations in Google-Scholar)
• B. Aleman-Meza, A.P. Sheth, I.B. Arpinar, C. Halaschek, Semantic Web Technology Evaluation Ontology (SWETO): A test bed for evaluating tools and benchmarking applications (Presentation: PDF, PPT), Developers Day Track, The Thirtheenth International World Wide Web Conference, NY, NY, May 17-22, 2004

Applications/Use/Citations of SWETO:

• OntoQA: Metric-Based Ontology Quality Analysis
• Ontological Evaluation and Validation
• Geospatial Ontology Development and Semantic Analytics
• Discovering and Ranking Semantic Associations over a Large RDF Metabase
• PowerAqua: A Multi-Ontology Based Question Answering System – v1
• Ontology Quality by Detection of Conflicts in Metadata
• Towards Quick Understanding and Analysis of Large-Scale Ontologies
• Ranking Complex Relationships on the Semantic Web
• OWLIM – a Pragmatic Semantic Repository for OWL
• BRAHMS: A WorkBench RDF Store and High Performance Memory System for Semantic Association Discovery
• Question Answering on the Real Semantic Web
• From Semantic Search & Integration to Analytics
• An Ontological Approach to the Document Access Problem of Insider Threat
• Semantic Analytics in Intelligence: Applying Semantic Association Discovery to determine Relevance of Heterogeneous Documents
• Towards Imaging Large-Scale Ontologies for Quick Understanding and Analysis

Other Details:
Of particular interest is not just the schema of the ontology, but also the population (instances, assertions or description base) of the ontology. A populated ontology (ontology with instances or assertions) is critical for core semantic issues such as semantic disambiguation as well as being necessary for checking the scalability of tools and techniques, including e.g. reasoning techniques.
An advantage of having access to both the schema of the ontology and the population of the ontology is that a class name can be understood by looking not only at the name of the class, but also by looking at the different instances that belong to that class (a class name by itself can be interpreted in different ways by different people).
SWETO was created (semi-)automatically by:

1. Design of the schema using an ontology design toolkit
2. Identifying knowledge sources that can be used to populate parts of SWETO
3. Utilizing extractor agents (written by humans without programming using a toolkit) to periodically and automatically extract parts of knowledge from various open and public sources
4. Semi-automatically disambiguating the knowledge (with limited human involvement)
5. Integrating related knowledge to populate the SWETO
6. Providing ability to export SWETO in RDF/RDFS and a version of OWL

SWETO is no longer actively maintained. A spin-off effort is the SwetoDblp ontology of Computer Science publications (based on data from DBLP bibliographay).

Contact Person:
Information on this page created and maintained by - Boanerges Aleman-Meza

This material is based upon work supported by the National Science Foundation under Grant No. IIS-0325464 titled "SemDis: Discovering Complex Relationships in Semantic Web". Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.