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VLDB
1994
ACM
114views Database» more  VLDB 1994»
15 years 3 months ago
Including Group-By in Query Optimization
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
Surajit Chaudhuri, Kyuseok Shim
AAAI
2010
15 years 1 months ago
g-Planner: Real-time Motion Planning and Global Navigation using GPUs
We present novel randomized algorithms for solving global motion planning problems that exploit the computational capabilities of many-core GPUs. Our approach uses thread and data...
Jia Pan, Christian Lauterbach, Dinesh Manocha
EDBT
2004
ACM
162views Database» more  EDBT 2004»
15 years 12 months ago
Non-contiguous Sequence Pattern Queries
Abstract. Non-contiguous subsequence pattern queries search for symbol instances in a long sequence that satisfy some soft temporal constraints. In this paper, we propose a methodo...
Nikos Mamoulis, Man Lung Yiu
VLDB
1995
ACM
96views Database» more  VLDB 1995»
15 years 3 months ago
The Fittest Survives: An Adaptive Approach to Query Optimization
Traditionally, optimizers are “programmed” to optimize queries following a set of buildin procedures. However, optimizers should be robust to its changing environment to gener...
Hongjun Lu, Kian-Lee Tan, Son Dao
ICDE
2008
IEEE
120views Database» more  ICDE 2008»
16 years 1 months ago
Sideways Information Passing for Push-Style Query Processing
In many modern data management settings, data is queried from a central node or nodes, but is stored at remote sources. In such a setting it is common to perform "pushstyle&qu...
Zachary G. Ives, Nicholas E. Taylor