Advances in Databases and Information Systems: 19th East - download pdf or read online

By Morzy Tadeusz, Patrick Valduriez, Ladjel Bellatreche

ISBN-10: 3319231340

ISBN-13: 9783319231341

ISBN-10: 3319231359

ISBN-13: 9783319231358

This booklet constitutes the completely refereed complaints of the nineteenth East ecu convention on Advances in Databases and knowledge platforms, ADBIS 2015, held in Poitiers, France, in September 2015. The 31 complete papers and 18 brief papers offered have been conscientiously chosen and reviewed from one hundred thirty five submissions. The papers are prepared in topical sections reminiscent of database conception and entry tools; person requisites and database evolution; multidimensional modeling and OLAP; ETL; transformation, extraction and archiving; modeling and ontologies; time sequence processing; functionality and tuning; complex question processing; approximation and skyline; confidentiality and trust.

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Extra info for Advances in Databases and Information Systems: 19th East European Conference, ADBIS 2015, Poitiers, France, September 8-11, 2015, Proceedings

Example text

The index nodes, on the other hand, are divided into two types: index nodes which are parents of leaf nodes, called l-index node, and index nodes which are parents of index nodes, called i-index node. H. Oliveira et al. l-index node [ P osj , si , ri , δ(si , srep ), δ(sil , si ) , P tr(Tsi ), #Ent(Tsi ), δ(si , pj ) ] i-index node [ P osj , si , ri , δ(si , srep ), δ(sil , si ) , ril , P tr(Tsi ), #Ent(Tsi ), δ(si , pj ) ] The difference between those nodes is that, in an l-index node, only the array of distances δ(sil , si ) are added, where sil is the l-th entry of the i-th child node and si is its representative.

The coNP-hard bound is verified by the coNP-hardness of DDs. The coNP bound is verified by an NP algorithm that can verify if Σ |= σ. 3. Inference System for CDDs: An inference system allows pruning of implied rules during discovery. For example, the well-known Armstrong’s Axioms [2] form the bases of the finite axiomatizability of FDs and similar axioms have been derived f or CFDs and DDs. We present a few (because of space limit) of all the inference rules used in pruning in Sect. 4 below for CDDs.

Soc. Ser. B (Stat. ) 13(2), 238–241 (1951) 13. : Differential dependencies: reasoning and discovery. ACM Trans. Database Syst. 36(3), 16:1–16:41 (2011) 14. : Parameter-free determination of distance thresholds for metric distance constraints. In: 28th ICDE, pp. 846–857 (2012) 15. 3: collaboration of array, bitmap and prefix tree for frequent itemset mining. In: 1st International Workshop on Open Source Data Mining, pp. 77–86 (2005) Improving the Pruning Ability of Dynamic Metric Access Methods with Local Additional Pivots and Anticipation of Information Paulo H.

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Advances in Databases and Information Systems: 19th East European Conference, ADBIS 2015, Poitiers, France, September 8-11, 2015, Proceedings by Morzy Tadeusz, Patrick Valduriez, Ladjel Bellatreche


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