From Semantic Web Standards

Name of the tool:
Home page:
Date of latest release: 2011-09-09 (verify)
Programming language(s) that can be used with the tool: Java, Javascript
Relevant semantic web technologies: RDF, RDFa
Categories: Special Browser, Semantic Web Browser, Search Engine
See also:
Public mailing list:
Preferred project URI:
DOAP reference:
Company or institution: DERI

(Tool description last modified on 2012-04-20.)

Description is a tool to explore the Web of Data. It can show data from any web site that embeds information in RDF, RDFa or Microformats. can be used as a data browser. Start with a keyword search, and then follow links to related searches. You are browsing a “network of mashups”, that is, at any time, information in Sigma is likely to come from multiple, unrelated Web sites. is built on top of the Sindice and Yahoo BOSS search engines, and it uses the OKKAM web service and the any23 parser library.