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BTW
2003
Springer
170views Database» more  BTW 2003»
15 years 9 months ago
Executing Nested Queries
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...
Goetz Graefe
FCT
2009
Springer
15 years 9 months ago
Multiway In-Place Merging
Abstract. We present an algorithm for asymptotically efficient multiway blockwise in-place merging. Given an array A containing sorted subsequences A1, . . . , Ak of respective le...
Viliam Geffert, Jozef Gajdos
IDEAS
2000
IEEE
96views Database» more  IDEAS 2000»
15 years 8 months ago
A Cost Function for Uniformly Partitioned UB-Trees
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
Volker Markl, Rudolf Bayer
VISUALIZATION
2000
IEEE
15 years 8 months ago
Hardware-accelerated volume and isosurface rendering based on cell-projection
We present two beneficial rendering extensions to the Projected Tetrahedra (PT) algorithm by Shirley and Tuchman. These extensions are compatible with any cell sorting technique,...
Stefan Röttger, Martin Kraus, Thomas Ertl
COORDINATION
2000
Springer
15 years 8 months ago
Scripting Coordination Styles
Abstract. The fact that so many different kinds of coordination models and languages have been proposed suggests that no one single approach will be the best for all coordination p...
Franz Achermann, Stefan Kneubuehl, Oscar Nierstras...