Information Infrastructures for Distributed Collective Practices

Irreductionally Real Information Infrastructures: Practices beyond Universals

Architecting Distributed Geo-information Services: beyond Data Infrastructures

During the last decade technological developments have facilitated the access to geo-information and have made it easier to manipulate, reducing the effort and skills required to exploit it effectively. As a direct consequence of this trend, a more sophisticated spatial awareness has developed among the general public resulting in geo-information being required to support many daily activities....

Ontology-Related Services in Agent-Based Distributed Information Infrastructures

Ontologies are an emerging paradigm to support declarativity, interoperability, and intelligent services in many areas, such as Agent–based Computation, Distributed Information Systems, and Expert Systems. In the context of designing a scalable, agent-based middleware for the realization of distributed Organizational Memories (OM), we examine the question what ontology–related services must be ...

Querying Large Distributed Infrastructures

Recent years have witnessed a dramatic increase in the use of large-scale distributed infrastructures in many different domains. Efforts in data center consolidation lead to data centers consisting of thousands of machines at one site. Networking testbeds such as Emulab [1] and PlanetLab [2] provide researchers with access to hundreds of machines instantly. Federated computational grids like Gr...

Distributed Exact Deduplication for Primary Storage Infrastructures

Deduplication of primary storage volumes in a cloud computing environment is increasingly desirable, as the resulting space savings contribute to the cost effectiveness of a large scale multi-tenant infrastructure. However, traditional archival and backup deduplication systems impose prohibitive overhead for latency-sensitive applications deployed at these infrastructures while, current primary...