We consider the conflicting problems of ensuring data-access load balancing and efficiently processing range queries on peer-to-peer data networks maintained over Distributed Hash ...
Theoni Pitoura, Nikos Ntarmos, Peter Triantafillou
Random sampling is a well-known technique for approximate processing of large datasets. We introduce a set of algorithms for incremental maintenance of large random samples on seco...
There has been growing interest in the addition of update operations to languages that operate on XML data, for example, XQuery and XJ. These update operations support efficient an...
Abstract. In wireless data broadcast systems, popular information is repetitively disseminated through possibly multiple communication channels to mobile clients using various type...
Recently, progress indicators have been proposed for SQL queries in RDBMSs. All previously proposed progress indicators consider each query in isolation, ignoring the impact simult...
Abstract. We describe MIDST, an implementation of the model management operator ModelGen, which translates schemas from one model to another, for example from OO to SQL or from SQL...
Paolo Atzeni, Paolo Cappellari, Philip A. Bernstei...
Utilizing spatial index structures on secondary memory for nearest neighbor search in high-dimensional data spaces has been the subject of much research. With the potential to host...
Christoph Brochhaus, Marc Wichterich, Thomas Seidl
As data management applications grow more complex, they may need efficient distributed query processing, but also subscription management, data archival etc. To enact such applicat...
Ontology languages to represent ontologies exist in large numbers, and users who want to access or reuse ontologies can often be confronted with a language they do not know. Theref...
Patrick Ziegler, Christoph Sturm, Klaus R. Dittric...