LOD2 Creating Knowledge out of Interlinked Data

After an interesting first webinar on components and services of the LOD2 Technology Stack we are preparing the next broadcast. On 20.12.2011, 04.00pm CET the LOD2EU-funded (FP7) research project aiming to take the Web of Linked Data to the next level. Main research challenges: improve coherence and quality of data published on the Web, close the performance gap between relational and RDF data management, establish trust on the Linked Data Web and ... project  will offer the next free one hour webinar on the Virtuoso Universal Server as the Linked Data ingestion, storage and retrieval component of the LOD2 Stack.

About the Virtuoso/LOD2 webinar, Dec. 2011

• What: LOD2 webinar series: Virtuoso (Open Link Software)
• Who: LOD2 project, presenter: Open Link Software
• When: 20.12. 2011, 04.00pm CET
• Information & registration: https://www2.gotomeeting.com/register/523785698

This webinar will introduce OpenLink Software‘s industry acclaimed Virtuoso Universal Server as the Linked Data ingestion, storage and retrieval component of the LOD2 Stack, providing an overview of its position in the linked data life cycle the LOD2 Stack provides, including live demos of its usage in this capacity. This webinar will be presented by the LOD2 Partner: OpenLink Software, UK The LOD2 webinar series is powered by the LOD2 project, organised and produced by the Semantic Web Company (Austria).

If you are interested in Linked (Open) Data principles and mechanisms, LOD tools & services and concrete use cases that can be realised using LOD then join us in the LOD2 webinar series!

The LOD2 team is looking forward to meet you at the webinar!

About the LOD2 Stack

The LOD2 stack is an integrated distribution of aligned tools which support the life-cycle of Linked Data from extraction, authoring/creation over enrichment, interlinking, fusing to visualization and maintenance. The stack comprises new and substantially extended existing tools from the LOD2 partners and third parties. The LOD2 stack is organized as a Debian package repository making the tool stack easy to install on any Debian-based system (e.g. Ubuntu). The first release of the LOD2 stack contains the following components (available as Debian packages):

• LOD2 demonstrator, the root package (LOD2)
• Virtuoso, RDF storage and data management platform (Openlink)
• OntoWikiSemantic Wiki providing support for agile, distributed knowledge engineering scenarios. OntoWiki facilitates the visual presentation of a knowledge base as an information map, with different views on instance data. It enables intuitive authoring of semantic content, with an inline editing mode ..., semantic data wiki authoring tool (ULEI)
• SigmaEE, multi-source exploration tool (DERICentre for Science, Engineering and Technology (CSET) established in 2003 with funding from the Science Foundation Ireland. The vision of the Digital Enterprise Research Institute is to be recognised as one of the leading international web science research institutes interlinking technologies, ...)
• D2RD2R Server is a tool for publishing relational databases on the Semantic Web. It enables RDF and HTML browsers to navigate the content of the database, and allows applications to query the database using the SPARQL query language. (, RDF wrapper for SQL databases (FUB)
• SilkThe Silk framework is a tool for discovering relationships between data items within different Linked Data sources. Data publishers can use Silk to set RDF links from their data sources to other data sources on the Web. (, interlinking engine (FUB)
• OREThe ORE (Ontology Repair and Enrichment) tool allows for knowledge engineers to improve an OWL ontology by fixing inconsistencies and making suggestions for adding further axioms to it. (http://ore-tool.net/Projects/ORE), ontology, an ontology is a formal representation of knowledge as a set of concepts within a domain, and the relationships between those concepts. It is used to reason about the entities within that domain, and may be used to describe the domain. In theory, an ontology is a "formal, explicit ... repair and enrichment toolkit (ULEI)

Additional details and the instructions on installing the LOD2 Stack from scratch are available in the HOWTO Start document.