Welcome to the Homepage of SQUIN

The Semantic Web Query Interface SQUIN enables applications to consume Linked Data in an easy manner.

Mission Statement

Our aim is to enable Web applications to consume Linked Data from the Web. With SQUIN we provide a query service as an addition to the LAMP technology stack. This service executes queries over the whole Web of Linked Data and, hence, enables applications to access the whole Web as if it is a single giant database.

News

July 13, 2010 Our recent article "A Database Perspective on Consuming Linked Data on the Web" compares the query execution approach in SQUIN with other approaches to execute queries over multiple linked datasets [...]
November 12th, 2009 We presented SQUIN and the query execution approach implemented by SWClLib and SQUIN at the International Semantic Web Conference (ISWC) in Washington, DC and during several other occasions in the US. Read about this trip on the SQUIN blog. Furthermore, during ISWC we used SQUIN to develop a simple Linked Data based application and we wrote about our experiences [...]
August 14th, 2009 SQUIN understands RDFa due to the new RDFa support in the Semantic Web Client Library. This means the query results provided by SQUIN now also reflect RDF data that is embedded in HTML documents using RDFa.
August 5th, 2009 Our paper, titled "Executing SPARQL Queries over the Web of Linked Data", has been accepted for this year's International Semantic Web Conference in Washington, DC. The paper describes the approach to query the Web of Linked Data as it is implemented in the Semantic Web Client Library that powers SQUIN.
June 18th, 2009 Juan presented SQUIN at the Semantic Technology Conference in San Jose [...]
June 18th, 2009 We created a mailing list for SQUIN users.
May 31st, 2009 Researchers Map won the Scripting Challenge!!!

Download

SQUIN-Standalone (current version: 20090526)

This package can be used to easily set up a SQUIN service on any computer; the only requirement is a recent Java environment. Beware, the code is pre-alpha! The SQUIN wiki contains a description on how to set up a SQUIN service using the installation package.
SQUIN is free software, distributed under the GNU General Public License v3.
Files: SQUIN-Standalone-20090526.zip

Publications

Olaf Hartig, Christian Bizer, and Johann-Christoph Freytag: Executing SPARQL Queries over the Web of Linked Data. In Proceedings of the 8th International Semantic Web Conference (ISWC), Washington, DC, USA, Oct. 2009

Team

Olaf Hartig
Juan Sequeda