Name: Stardog and Expressive Query Answering For Semantic Wikis
Start: 2011-05-10T18:00:00-04:00
End: 2011-05-10T21:00:00-04:00
Location: MIT Stata Center - Star Room

Presentations:

Evren Sirin - Stardog (http://stardog.com/)

Stardog (http://weblog.clarkparsia.com/2011/01/10/stardog-beta/) is a commercial RDF database: insanely fast SPARQL query, transactions, and world-class OWL reasoning support.

Jie Bao - Expressive Query Answering For Semantic Wikis (http://www.slideshare.net/baojie_iowa/expressive-query-answering-for-semantic-wikis)

Semantic MediaWiki (SMW) is a popular semantic wiki platform that provides both modeling and query capacity of semantic annotations. This talk will introduce an expressive extension to SMW, SemanticQueryRDFS++. The extension is based on query rewriting from SMW scripts to logic programs. It provides a set of extra modeling and querying features frequently needed in many applications, including:

* negation and cardinality in query
* inverse property in modeling
* transitive, functional, inverse functional, symmetric properties in modeling
* domain and range inference for properties in modeling

For details, please see http://www.mediawiki.org/wiki/Extension:SemanticQueryRDFS++ and http://www.slideshare.net/baojie_iowa/expressive-query-answering-for-semantic-wikis

Bio

Dr. Jie Bao is a research associate at the Tetherless World Constellation, Rensselaer Polytechnic Institute. He is also a visiting scientist at Raytheon BBN Technologies and was a research affiliate at the Decentralized Information Group, Massachusetts Institute of technology. He was a member of the OWL Working Group at W3C. He received his Ph.D. in computer science from the Iowa State University (ISU) in 2007. His research activities span a variety of topics in Artificial Intelligence and Semantic Web, including description logics, semantic wikis, context modeling, semantic information theory, rule languages, closed world reasoning, policy modeling, semantic data integration, modular ontologies, collaborative ontology building, web privacy protection, neural network and data mining. Dr. Bao has authored more than 50 refereed research papers. He has served on Organizing Committees or Programming Committees of more than 30 international conferences and workshops.

William S Hayes

Cambridge Semantic Web

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Stardog and Expressive Query Answering For Semantic Wikis

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