By Sourav S. Bhowmick, Curtis Dyreson, Christian S. Jensen, Mong Li Lee, Agus Muliantara, Bernhard Thalheim
These volumes set LNCS 8421 and LNCS 8422 constitutes the refereed complaints of the nineteenth overseas convention on Database platforms for complex functions, DASFAA 2014, held in Bali, Indonesia, in April 2014. The sixty two revised complete papers provided including 1 prolonged summary paper, four commercial papers, 6 demo displays, three tutorials and 1 panel paper have been conscientiously reviewed and chosen from a complete of 257 submissions. The papers disguise the subsequent issues: colossal information administration, indexing and question processing, graph info administration, spatio-temporal info administration, database for rising undefined, information mining, probabilistic and unsure information administration, internet and social info administration, safety, privateness and belief, key-phrase seek, info flow administration and information quality.
Read Online or Download Database Systems for Advanced Applications: 19th International Conference, DASFAA 2014, Bali, Indonesia, April 21-24, 2014. Proceedings, Part I PDF
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Extra resources for Database Systems for Advanced Applications: 19th International Conference, DASFAA 2014, Bali, Indonesia, April 21-24, 2014. Proceedings, Part I
For all suites, adding Contraction (successively increasing the cutoff threshold as the number of desired matches is reached) reduced the response time and variability; the improvement was around 20-25% for the affected searches. However, the improvement gained by adding Contraction was lower than the improvement of Adaptive over Naïve. Based on these and other tests, we see that hierarchies can, depending on their organization and on the specific search, further improve performance compared to no hierarchy.
Inf. Process. Manag. 36(2), 207–227 (2000) 10. : Q3C, Quad Tree Cube: The new sky-indexing concept for huge astronomical catalogues and its realization for main astronomical queries (cone search and Xmatch) in open source database PostgreSQL. In: Astronomical Data Analysis Software and Systems XV. pp. 735–738 (2006) 11. : The indexing of the SDSS science archive. Astron. Data Anal. Softw. Syst. 216 (2000) 12. : Implementing a general spatial indexing library for relational databases of large numerical simulations.
As with the time searches, spatial searches were created that aligned with hierarchy groupings, were offset from or overlapping hierarchy groupings, and were both larger and smaller than hierarchy grouping levels. In all cases, we requested 10 ≤ k ≤ 50, that is, a minimum number of 10 and a maximum of 50 entries to be returned from a search. Time Search Suite Results. We first ran tests for the time suite to assess the benefit of the filter alone (without restart) . Adding a filter without restart capabilities means that a search may not result in the minimum requested entries.