Titlebook: Scientific and Statistical Database Management; 22nd International C Michael Gertz,Bertram Ludäscher Conference proceedings 2010 Springer-V

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Ablation

Tradeoffs between Parallel Database Systems, Hadoop, and HadoopDB as Platforms for Petabyte-Scale Anre beginning to proliferate. No fewer than a dozen companies have launched in the past few years that sell parallel database products to meet this market demand. At the same time, MapReduce-based options, such as the open source Hadoop framework are becoming increasingly popular, and there have been

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Approximate Query Answering and Result Refinement on XML Data current XML techniques focus on the optimization of query processing, none of these support early approximate feedback as possible in relational Online Aggregation systems..In this paper, we introduce a system that provides fast estimates to XML aggregation queries. While processing, these estimate

Harness

Efficient and Scalable Method for Processing Top-k Spatial Boolean Queriescombines an R-tree with an inverted index by the inclusion of spatial references in posting lists. The result is a disk-resident, dual-index data structure that is used to proactively prune the search space. R-tree nodes are visited in best-first order. A node entry is placed in the priority queue i

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