By Richard Hull (auth.), Elisa Bertino, Stavros Christodoulakis, Dimitris Plexousakis, Vassilis Christophides, Manolis Koubarakis, Klemens Böhm, Elena Ferrari (eds.)
The ninth foreign convention on Extending Database expertise, EDBT 2004, used to be held in Heraklion, Crete, Greece, in the course of March 14–18, 2004. The EDBT sequence of meetings is a longtime and prestigious discussion board for the trade of the newest learn leads to info administration. Held each years in an enticing eu position, the convention offers targeted opp- tunities for database researchers, practitioners, builders, and clients to discover new rules, suggestions, and instruments, and to switch stories. the former occasions have been held in Venice, Vienna, Cambridge, Avignon, Valencia, Konstanz, and Prague. EDBT 2004 had the subject matter “new demanding situations for database technology,” with the aim of encouraging researchers to take a better curiosity within the present fascinating technological and alertness developments and to plan and tackle new examine and improvement instructions for database know-how. From its early days, database expertise has been challenged and complex by means of new makes use of and purposes, and it maintains to conform in addition to program necessities and advances. Today’s DBMS expertise faces but numerous new demanding situations. Technological traits and new computation paradigms, and purposes corresponding to pervasive and ubiquitous computing, grid computing, bioinformatics, belief administration, digital groups, and electronic asset administration, to call quite a few, require database know-how to be deployed in various environments and for a few di?erent reasons. Such an in depth deployment also will require reliable, resilient database platforms, in addition to easy-to-manage and ?exible ones, to which we will be able to entrust our information in no matter what shape they are.
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Additional info for Advances in Database Technology - EDBT 2004: 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004
Filters should be small, scalable to a large number of nodes and documents and support frequent updates. Bloom ﬁlters have been used as summaries in such a context . Bloom ﬁlters are compact data structures used to support keyword queries. However, Bloom ﬁlters are not appropriate for summarizing hierarchical data, since they do not exploit the structure of data. To this end, we introduce two novel multilevel data structures, Breadth and Depth Bloom ﬁlters, that support eﬃcient processing of path queries.
DBFi−1 }, i ≤ j. , a path of i + 1 nodes), where we insert all paths of length i. For example, the DBF for the XML tree in Fig. 1 is a set of 3 simple Bloom ﬁlters (Fig. 3(b)). Note that 34 G. Koloniari and E. Pitoura (device ∪ printer ∪ camera ∪ BBF0 1 1 1 1 1 0 1 0 1 1 1 1 BBF1 1 0 0 0 1 0 1 0 0 0 0 0 device BBF2 0 1 1 1 1 0 0 0 1 0 0 1 (printer ∪ camera) BBF3 0 0 0 1 0 0 1 0 0 1 1 1 (color ∪ postscript ∪ digital) color ∪ postscript ∪ digital) (a) (device ∪ printer ∪ camera ∪ DBF0 1 1 1 1 1 0 1 0 1 1 1 1 DBF1 1 0 0 0 1 0 1 0 0 1 0 1 DBF2 1 0 0 0 1 0 1 1 1 0 0 1 color ∪ postscript ∪ digital) (device/printer ∪ device/camera ∪ camera/digital ∪ printer/color ∪ printer/postscript) (device/camera/digital ∪ device/printer/color ∪ device/printer/postscript) (b) Fig.
Org) and the EC NGG Group. G. htm  I Foster and C Kesselman (Eds). The Grid: Blueprint for a New Computing Infrastructure. htm  Original Paper on GRIDs, unpublished, available from the author  K G Jeffery. ‘Metadata’: in Brinkkemper, J; Lindencrona, E; Solvberg, A: ‘Information Systems Engineering’ Springer Verlag, London 2000. ISBN 1-85233-317-0.  K G Jeffery, E K Hutchinson, J R Kalmus, M D Wilson, W Behrendt, C A Macnee, 'A Model for Heterogeneous Distributed Databases' Proceedings BNCOD12 July 1994; LNCS 826 pp 221-234 Springer-Verlag 1994  Kohoutkova, J; ‘Structured Interfaces for Information Presentation’ PhD Thesis, Masaryk University, Brno, Czech Republic  Skoupy, K; Kohoutkova, J; Benesovsky, M; Jeffery, K G: ‘Hypermedata Approach: A Way to Systems Integration’ Proceedings Third East European Conference, ADBIS'99, Maribor, Slovenia, September 13-16, 1999, Published: Institute of Informatics, Faculty of Electrical Engineering and Computer Science, Smetanova 17, IS-2000 Maribor, Slovenia,1999, ISBN 86-435-0285-5, pp 9-15 Security and Privacy for Web Databases and Services Elena Ferrari1 and Bhavani Thuraisingham2 1 2 Universit` a dell’Insubria, 22100 Como, Italy The National Science Foundation, Arlington, VA, USA Abstract.
Advances in Database Technology - EDBT 2004: 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004 by Richard Hull (auth.), Elisa Bertino, Stavros Christodoulakis, Dimitris Plexousakis, Vassilis Christophides, Manolis Koubarakis, Klemens Böhm, Elena Ferrari (eds.)