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» Eager Aggregation and Lazy Aggregation
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VLDB
1995
ACM
194views Database» more  VLDB 1995»
13 years 8 months ago
Eager Aggregation and Lazy Aggregation
Efficient processing of aggregation queries is essential for decision support applications. This paper describes a class of query transformations, called eager aggregation and lat...
Weipeng P. Yan, Per-Åke Larson
ICDE
2009
IEEE
155views Database» more  ICDE 2009»
13 years 11 months ago
SPROUT: Lazy vs. Eager Query Plans for Tuple-Independent Probabilistic Databases
— A paramount challenge in probabilistic databases is the scalable computation of confidences of tuples in query results. This paper introduces an efficient secondary-storage o...
Dan Olteanu, Jiewen Huang, Christoph Koch
PPOPP
2003
ACM
13 years 9 months ago
Optimizing data aggregation for cluster-based internet services
Large-scale cluster-based Internet services often host partitioned datasets to provide incremental scalability. The aggregation of results produced from multiple partitions is a f...
Lingkun Chu, Hong Tang, Tao Yang, Kai Shen
CN
2000
144views more  CN 2000»
13 years 4 months ago
ATM over ADSL probe in Telecom Italia environment
: This paper covers access network performance analysis by deploying ATM over ADSL within Telecom Italia experimental department "EXANET" (Experimental ATM Network). In t...
Stanislav Milanovic, Alessandro Maglianella