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VLDB
2007
ACM
146views Database» more  VLDB 2007»
16 years 6 months ago
A Cost-Estimation Component for Statement Sequences
Query generators producing sequences of SQL statements are embedded in many applications. As the execution time of such sequences is often far from optimal, their optimization is ...
Tobias Kraft
SIGMOD
2008
ACM
65views Database» more  SIGMOD 2008»
16 years 6 months ago
Generating targeted queries for database testing
Tools for generating test queries for databases do not explicitly take into account the actual data in the database. As a consequence, such tools cannot guarantee suitable coverag...
Chaitanya Mishra, Nick Koudas, Calisto Zuzarte
SIGMOD
2002
ACM
91views Database» more  SIGMOD 2002»
16 years 6 months ago
A scalable hash ripple join algorithm
Recently, Haas and Hellerstein proposed the hash ripple join algorithm in the context of online aggregation. Although the algorithm rapidly gives a good estimate for many join-agg...
Gang Luo, Curt J. Ellmann, Peter J. Haas, Jeffrey ...
PODS
2005
ACM
131views Database» more  PODS 2005»
16 years 6 months ago
Space efficient mining of multigraph streams
The challenge of monitoring massive amounts of data generated by communication networks has led to the interest in data stream processing. We study streams of edges in massive com...
Graham Cormode, S. Muthukrishnan
ICIAP
2003
ACM
16 years 6 months ago
A topological approach for segmenting human body shape
Segmentation of 3D human body is a very challenging problem in applications exploiting human scan data. To tackle this problem, this paper proposes a topological approach based on...
Yijun Xiao, Naoufel Werghi, Paul Siebert