Web of Data Plumbing - Lowering the Barriers to Entry (2009)
Umbrich, Jürgen, Glaser, Hugh, Hastrup, Tuuka, Millard, Ian, Hausenblas, Michael
Publishing and consuming content on the Web of Data often requires considerable expertise in the underlying technolo- gies, as the expected services to achieve this are either not packaged in a...
Exploring the knowledge in Semi Structured Data Sets with Rich Queries (2009)
Jürgen Umbrich, Sebastian Blohm
Abstract. Semantics can be integrated in to search processing during both document analysis and querying stages. We describe a system that incorporates both, semantic annotations of Wikipedia...
Exploring the knowledge in Semi Structured Data Sets with Rich Queries (2009)
Jürgen Umbrich, Sebastian Blohm
Abstract. Semantics can be integrated in to search processing during both document analysis and querying stages. We describe a system that incorporates both, semantic annotations of Wikipedia...
SWSE: Objects before documents! (2009)
Andreas Harth, Aidan Hogan, Jürgen Umbrich, Stefan Decker
Abstract. Web search engines are immensly useful for locating documents online. However, with more and more structured data being published online, the restriction to the hyperdocument model impairs...
Four Heuristics to Guide Structured Content Crawling (2009)
Jürgen Umbrich, Andreas Harth, Aidan Hogan, Stefan Decker
Search engines focusing on particular media types face difficulties in discovering suitable URIs on the Web. Since the engines are only interested in a small fraction of the Web, a crawler should use...
Iterative Pattern Induction (2008)
Sebastian Blohm, Jürgen Umbrich
- A lot of facts on the Web are not available in structured form. But we would like to have them structured.- The Web is big. For an individual user task, linear-time processing is prohibitive.- We...
Aidan Hogan, Andreas Harth, Jürgen Umbrich, Stefan Decker
Current search engines do not fully leverage semantically rich datasets, or specialise in indexing just one domainspecific dataset. We present a search engine that uses the RDF data model to enable...
SWSE: answers before links (2007)
Andreas Harth, Aidan Hogan, Renaud Delbru, Jürgen Umbrich, Stefan Decker
Abstract. We present a system that improves on current documentcentric Web search engine technology; adopting an entity-centric perspective, we are able to integrate data from both static and live...
Yars2: A federated repository for querying graph structured data from the web (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker
Abstract. We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from...
Yars2: A federated repository for querying graph structured data from the web (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker
Abstract. We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from...
YARS2: A Federated Repository for Searching and Querying Graph Structured Data. 2007 (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker, Andreas Harth, Jürgen Umbrich, ...
Abstract. We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from...
YARS2: A Federated Repository for Searching and Querying Graph Structured Data. 2007 (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker, Andreas Harth, Jürgen Umbrich, ...
Abstract. We present the architecture of an end-to-end search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from many...
SWSE: answers before links (2007)
Andreas Harth, Aidan Hogan, Renaud Delbru, Jürgen Umbrich, Stefan Decker
Abstract. We present a system that improves on current documentcentric Web search engine technology; adopting an entity-centric perspective, we are able to integrate data from both static and live...
Multicrawler: A pipelined architecture for crawling and indexing semantic web data (2006)
Andreas Harth, Jürgen Umbrich, Stefan Decker
Abstract. The goal of the work presented in this paper is to obtain large amounts of semistructured data from the web. Harvesting semistructured data is a prerequisite to enabling large-scale query...