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ICDE
2003
IEEE
148views Database» more  ICDE 2003»
15 years 10 months ago
Efficient Computation of Subqueries in Complex OLAP
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
Michael H. Böhlen, Michael O. Akinde
VLDB
2001
ACM
144views Database» more  VLDB 2001»
15 years 9 months ago
Approximate query processing using wavelets
Approximate query processing has emerged as a costeffective approach for dealing with the huge data volumes and stringent response-time requirements of today's decision-suppo...
Kaushik Chakrabarti, Minos N. Garofalakis, Rajeev ...
SIGMOD
2006
ACM
110views Database» more  SIGMOD 2006»
15 years 9 months ago
Supporting ad-hoc ranking aggregates
This paper presents a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries, which provide the k groups with the highest aggregates as results....
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas
ICDE
2004
IEEE
124views Database» more  ICDE 2004»
15 years 10 months ago
Authenticating Query Results in Edge Computing
Edge computing pushes application logic and the underlying data to the edge of the network, with the aim of improving availability and scalability. As the edge servers are not nec...
HweeHwa Pang, Kian-Lee Tan
96
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PODS
2008
ACM
250views Database» more  PODS 2008»
15 years 9 months ago
Approximating predicates and expressive queries on probabilistic databases
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
Christoph Koch