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SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
16 years 6 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...
SIGMOD
2001
ACM
158views Database» more  SIGMOD 2001»
16 years 6 months ago
Generating Efficient Plans for Queries Using Views
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
Foto N. Afrati, Chen Li, Jeffrey D. Ullman
EDBT
2004
ACM
122views Database» more  EDBT 2004»
16 years 6 months ago
Sketch-Based Multi-query Processing over Data Streams
Abstract. Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) ...
Alin Dobra, Minos N. Garofalakis, Johannes Gehrke,...
EDBT
2004
ACM
268views Database» more  EDBT 2004»
16 years 6 months ago
DBDC: Density Based Distributed Clustering
Abstract. Clustering has become an increasingly important task in modern application domains such as marketing and purchasing assistance, multimedia, molecular biology as well as m...
Eshref Januzaj, Hans-Peter Kriegel, Martin Pfeifle
ICDE
2010
IEEE
248views Database» more  ICDE 2010»
16 years 6 months ago
FPGA Acceleration for the Frequent Item Problem
Abstract-- Field-programmable gate arrays (FPGAs) can provide performance advantages with a lower resource consumption (e.g., energy) than conventional CPUs. In this paper, we show...
Gustavo Alonso, Jens Teubner, René Mül...