Swoogle is a search engine for the Semantic Web on the Web. Swoogle crawls the World Wide Web for a special class of web documents called Semantic Web documents, which are written in RDF. Currently, it provides the following services to the following services:

• search Semantic Web ontologies
• search Semantic Web instance data
• search Semantic Web terms, i.e., URIs that have been defined as classes and properties
• provide metadata of Semantic Web documents and support browsing the Semantic Web. (Please refer to Li Ding et. al., Finding and Ranking Knowledge on the Semantic Web, ISWC’04 for details)
• archive different versions of Semantic Web documents

Currently, Swoogle only indexes some metadata about Semantic Web documents. It neither stores nor searches all triples in an Semantic Web documents as a triple store.

Why Swoogle?  It stands for “Semantic Web Ontology…” (Still trying to figure out the rest!)

Swoogle is a research project being carried out by the ebiquity research groupin the Computer Science and Electrical Engineering Department at the University of Maryland, Baltimore County (UMBC). Partial research support was provided by DARPA contract F30602-00-0591 and by NSF by awards NSF-ITR-IIS-0326460 and NSF-ITR-IDM-0219649. Contributors include Tim Finin, Li Ding, Rong Pan, Anupam Joshi, Pavan Reddivari, Joel Sachs, Pranam Kolari, Akshay Java, Lushan Han, Yun Peng, R. Scott Cost,   Sandor Dornbush and Vishal Doshi.

Swoogle provides REST web service to public users. Please read the Search Servicesection in Swoogle Manual to learn the web service interface. In fact, the entire Swoogle website is based on the web services as well.

Swoogle indexes only Semantic Web documents, currently including those written in RDF/XML, N-Triples, N3(RDF)  and some documents that embed RDF/XML fragments. The data presented at Swoogle are collected from the public accessible World Wide Web. .

This entry was posted on Saturday, November 17th, 2007 at 1:53 pm and is filed under Reviews. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.