Titlebook: Database Theory - ICDT‘99; 7th International Co Catriel Beeri,Peter Buneman Conference proceedings 1999 Springer-Verlag Berlin Heidelberg 1

Missile

Pharmacotherapy of Urgency Incontinencey of spatial properties. This raises questions about the quality of the workloads generated from such queries. We contrast our approach with previous work that generates workloads of random spatial ranges, and we sketch directions for future work on the robust generation of workloads for studying in

SNEER

https://doi.org/10.1007/978-3-031-09334-0uctures, and provide a syntactic characterization of first-order orthographic dimension preserving queries..The main result of the paper concerns linear constraint databases. We prove that orthographic dimension preserving Boolean combination of conjunctive queries can be evaluated independently of

单调女

https://doi.org/10.1007/978-3-031-09334-0ar, most such techniques proposed in the literature are not evaluated versus simple linear scan, and are evaluated over workloads for which nearest neighbor is not meaningful. Often, even the reported experiments, when analyzed carefully, show that linear scan would outperform the techniques being p

意外的成功

Continental Philosophy of Psychiatryre approximation algorithms for several partitioning problems that provably approximate the optimal solutions within small constant factors, and that run in linear or close to linear time. We also establish the NP-hardness of several partitioning problems, therefore it is unlikely that there are eff

矿石

EXALT

0302-9743 initiated in Dresden (1987), and continued in Visegrad (1989) and Rostock (1991). ICDT aims to enhance the exchange of ideas and cooperation in database research both within uni?ed Europe, and 978-3-540-65452-0978-3-540-49257-3Series ISSN 0302-9743 Series E-ISSN 1611-3349

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PAC

Definability and Descriptive Complexity on Databases of Bounded Tree-Widthnt logic. These results have some remarkable consequences concerning the definability of certain classes of graphs..Finally, we show that each database of tree-width at most . can be characterized up to isomorphism in the language C., the (. + 3)-variable fragment of firstorder logic with counting.

小木槌

On the Generation of 2-Dimensional Index Workloadsy of spatial properties. This raises questions about the quality of the workloads generated from such queries. We contrast our approach with previous work that generates workloads of random spatial ranges, and we sketch directions for future work on the robust generation of workloads for studying in

脱毛

On the Orthographic Dimension of Constraint Databasesuctures, and provide a syntactic characterization of first-order orthographic dimension preserving queries..The main result of the paper concerns linear constraint databases. We prove that orthographic dimension preserving Boolean combination of conjunctive queries can be evaluated independently of