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SIGMOD
2007
ACM
150views Database» more  SIGMOD 2007»
14 years 10 months ago
Exploiting self-monitoring sample views for cardinality estimation
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
Jingren Zhou, Per-Åke Larson, Peter Zabback,...
KI
2006
Springer
13 years 9 months ago
A Framework for Quasi-exact Optimization Using Relaxed Best-First Search
Abstract. In this paper, a framework for previous and new quasi-exact extensions of the A -algorithm is presented. In contrast to previous approaches, the new methods guarantee to ...
Rüdiger Ebendt, Rolf Drechsler
SIGMOD
2002
ACM
198views Database» more  SIGMOD 2002»
14 years 10 months ago
Processing complex aggregate queries over data streams
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) with only...
Alin Dobra, Minos N. Garofalakis, Johannes Gehrke,...
MICRO
2007
IEEE
128views Hardware» more  MICRO 2007»
14 years 4 months ago
A Framework for Providing Quality of Service in Chip Multi-Processors
The trends in enterprise IT toward service-oriented computing, server consolidation, and virtual computing point to a future in which workloads are becoming increasingly diverse i...
Fei Guo, Yan Solihin, Li Zhao, Ravishankar Iyer
GLOBECOM
2007
IEEE
13 years 11 months ago
The Quality-Energy Scalable OFDMA Modulation for Low Power Transmitter and VLIW Processor Based Implementation
: The improvement of spectral efficiency comes at the cost of exponential increment of signal processing complexity [1]. Hence, the energy-efficiency of baseband has recently turne...
Min Li, Bruno Bougard, Eduardo Lopez-Estraviz, And...