By Christian Bizer (auth.), Alvaro A. A. Fernandes, Alasdair J. G. Gray, Khalid Belhajjame (eds.)
This ebook constitutes the completely refereed post-conference complaints of the twenty eighth British nationwide convention on Databases, BNCOD 28, held in Manchester, united kingdom, in July 2011. The thirteen revised complete papers, 2 brief papers, 2 demo papers and 1 poster paper provided including the abstracts of two keynote talks and 1 educational paper have been conscientiously reviewed and chosen from forty four submissions. The papers disguise quite a lot of issues comparable to XML compression, XML updates, column-oriented shops, provenance, warehousing, streamed information, info mashups, dataspaces, sensor community question processing, and pattern-oriented search.
Read or Download Advances in Databases: 28th British National Conference on Databases, BNCOD 28, Manchester, UK, July 12-14, 2011, Revised Selected Papers PDF
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Extra resources for Advances in Databases: 28th British National Conference on Databases, BNCOD 28, Manchester, UK, July 12-14, 2011, Revised Selected Papers
HLC SL instantiates a buﬀer manager to manage multiple sorted lists and an index manager to manage multiple index nodes. Each sorted list manages its own buﬀer manager, which ensures the high locality of data for each sorted list. HLC B+-Tree: HLC B+-Tree is a B+-Tree based structure, where each leaf node is also a B+-Tree. HLC B+-Tree instantiates a buﬀer manager to manage multiple B+-Trees and an index manager to manage multiple index nodes. Each B+-Tree at leaf nodes has its own buﬀer manager and index manager, which ensures the high locality of data and index nodes for each B+-Tree.
Schallehn, and G. , data size, workload, and data access) to keep our discussion simple and understandable. Table 1 shows only the evolution for dictionary columns for the LINEITEM table as they utilizes the beneﬁts of evolving hierarchically-organized storage structures to their full potential. Before we conclude this section, to avoid any confusion, we want to disclaim that the terms and concepts of evolution, evolution path, mutation rules, and heredity information used in this paper have no relevance with their counterpart in evolutionary algorithms or any other nonrelevant domain.
In this paper we perform a rigorous experimental study analyzing the possible performance improvements while considering typical data distributions. For this purpose we design an algorithm Extended Hybrid Join (X-HYBRIDJOIN) that is complementary to MESHJOIN in that it can adapt to data skew and stores parts of the master data in memory permanently, reducing the disk access overhead signiﬁcantly. We compare the performance of X-HYBRIDJOIN against the performance of MESHJOIN. We take several precautions to make sure the comparison is adequate and focuses on the utilization of data skew.
Advances in Databases: 28th British National Conference on Databases, BNCOD 28, Manchester, UK, July 12-14, 2011, Revised Selected Papers by Christian Bizer (auth.), Alvaro A. A. Fernandes, Alasdair J. G. Gray, Khalid Belhajjame (eds.)