• Publications
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SPLENDID: SPARQL Endpoint Federation Exploiting VOID Descriptions
TLDR
We have implemented SPLENDID, a query optimization strategy for federating SPARQL endpoints based on statistical data obtained from voiD descriptions. Expand
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FedBench: A Benchmark Suite for Federated Semantic Data Query Processing
TLDR
In this paper we present FedBench, a comprehensive benchmark suite for testing and analyzing the performance of federated query processing strategies on semantic data. Expand
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SPLODGE: Systematic Generation of SPARQL Benchmark Queries for Linked Open Data
TLDR
The distributed and heterogeneous nature of Linked Open Data requires flexible and federated techniques for query evaluation. Expand
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TagFS - Tag Semantics for Hierarchical File Systems
TLDR
We map non-hierarchical tagging and query semantics to the commonly used hierarchical file system semantics, thus combining the benefits of both worlds. Expand
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PINTS: peer-to-peer infrastructure for tagging systems
TLDR
We analyze the problem of constructing a reliable approximation for feature vectors in a fully decentralized setting and introduce possible solutions. Expand
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Federated Data Management and Query Optimization for Linked Open Data
TLDR
Linked Open Data provides data on the web in a machine readable way with typed links. Expand
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Developing Ontologies in OWL: an Observational Study
TLDR
In this paper, we describe a user study that we have carried out in order to improve our understanding of the level of support provided by current ontology engineering tools in the context envisaged by the NeOn project. Expand
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Tagster - Tagging-Based Distributed Content Sharing
TLDR
We present Tagster, a peer-to-peer based tagging system that provides a solution to this challenge. Expand
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Lifecycle Knowledge Management: Getting the Semantics Across in X-Media
TLDR
In this paper we present some semantic web technologies of the EU integrated project X-Media that build bridges between the various information sources, the different media, the stations of knowledge management and the different communities. Expand
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