By Sherif Sakr, Wei Wang (auth.), Masatoshi Yoshikawa, Xiaofeng Meng, Takayuki Yumoto, Qiang Ma, Lifeng Sun, Chiemi Watanabe (eds.)

This e-book constitutes the workshop court cases of the fifteenth overseas convention on Database platforms for complex functions, DASFAA 2010, held in Tsukuba, Japan, in April 2010. the quantity includes six workshops, each one targeting particular learn matters that give a contribution to the most topics of the DASFAA convention: the 1st foreign Workshop on Graph information administration: concepts and purposes (GDM 2010), the second one overseas Workshop on Benchmarking of Database administration platforms and Data-Oriented internet applied sciences (BenchmarkX'10); The 3rd foreign Workshop on coping with info caliber in Collaborative details platforms (MCIS2010), The Workshop on Social Networks and Social Media Mining on the net (SNSMW2010), the knowledge in depth eScience Workshop (DIEW 2010), and the second one overseas Workshop on Ubiquitous facts administration (UDM2010).

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Extra resources for Database Systems for Advanced Applications: 15th International Conference, DASFAA 2010, International Workshops: GDM, BenchmarX, MCIS, SNSMW, DIEW, UDM, Tsukuba, Japan, April 1-4, 2010, Revised Selected Papers

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Recently, on supporting 18 J. X. K. Cheng the processing of k nearest neighbor queries in road networks, [14] discusses distance signatures for distance computation over long distances from single source node. But for our ranked distance queries, multiple source nodes and arbitrary distances will be searched. [22,23] have proposed a compact distance oracle where any distance and shortest path can be found in O(δ · |V |) time. However, its index construction relies on the spatial coherence of the data, and it is not easy to obtain such structures in arbitrary general directed graphs.

9(g) to Fig. 9(l) show the performance of Pairwise and Center-D when the K value is increasing. Because all algorithms of center-based processing have close performance, in which all three corresponding curves become too close for this experiment, therefore, those figures only show the performance for Center-D. Based on those figures, we can perceive that the superiority of the center-based processing is even stronger when K value is increased to a large value, for both elapsed time and IO number.

Scalable network distance browsing in spatial databases. In: SIGMOD (2008) 23. : Distance oracles for spatial networks. In: ICDE (2009) 24. : Efficient creation and incremental maintenance of the HOPI index for complex XML document collections. In: Proc. of ICDE 2005 (2005) 25. : Approximate distance oracles. In: Proc. of STOC 2001 (2001) 26. : Fast and practical indexing and querying of very large graphs. In: Proc. of SIGMOD 2007 (2007) 27. : Answering distance queries in directed graphs using fast matrix multiplication.

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