Download New Trends in Database and Information Systems II: Selected by Nick Bassiliades, Mirjana Ivanovic, Margita Kon-Popovska, PDF

By Nick Bassiliades, Mirjana Ivanovic, Margita Kon-Popovska, Yannis Manolopoulos, Themis Palpanas, Goce Trajcevski, Athena Vakali (eds.)

This quantity comprises the papers of three workshops and the doctoral consortium, that are prepared within the framework of the 18th East-European convention on Advances in Databases and data structures (ADBIS’2014).

The 3rd foreign Workshop on GPUs in Databases (GID’2014) is dedicated to topics regarding usage of images Processing devices in database environments. using GPUs in databases has no longer but acquired adequate consciousness from the database neighborhood. The purpose of the GID workshop is to supply a dialogue on popularizing the GPUs and supplying a discussion board for dialogue with recognize to the GID’s study principles and their power to accomplish excessive speedups in lots of database applications.

The 3rd overseas Workshop on Ontologies Meet complex details structures (OAIS’2014) has a twofold target to give: new and demanding concerns within the contribution of ontologies for designing top of the range info platforms, and new learn and technological advancements which use ontologies everywhere in the existence cycle of knowledge systems.

The 1st foreign Workshop on applied sciences for caliber administration in difficult purposes (TQMCA’2014) makes a speciality of caliber administration and its significance in new fields equivalent to significant facts, crowd-sourcing, and flow databases. The Workshop has addressed the necessity to advance novel techniques and applied sciences, and to completely combine caliber administration into info approach administration.

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Graphs ensure flexibility to cope with semantic and structural heterogeneity in the integration step [16] in particular we provide a holistic optimal integrated graph. The remainder of this paper is organized as follows. In section 2, we present our process for self-service BI on OD. In Section 3, we detail the different steps of the content-driven ETL processes on OD. In section 4, we present the OD extraction tool (ODET) and some experimentations. Section 5 concludes by drawing the perspectives of this work.

In: Proceedings of the Sixth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, pp. 350–354 (2000) 26 M. Rokosik and M. Wojciechowski 14. : Multiple-query optimization. ACM Transactions on Database Systems 13(1), 23–52 (1988) 15. : Evaluation of common counting method for concurrent data mining queries. , Wloka, U. ) ADBIS 2003. LNCS, vol. 2798, pp. 76–87. Springer, Heidelberg (2003) 16. : Evaluation of the mine-merge method for data mining query processing. In: Proceedings of the 8th East European Conference on Advances in Databases and Information Systems (2004) 17.

Regarding the CW, in order to eliminate the cold cache effects we execute it twice and keep always the second value. Moreover, as we described in the previous section to get an acceptable execution time, cache techniques are necessary. The cache size is defined as a percentage of total nodes. For our experiments we use six different cache sizes (5%, 10%, 15%, 20%, 25%, 30%) and we report the respective improvements. 5 Experimental Study In this section we present the experimental study. At first we describe the datasets used for the evaluation.

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