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» Querying Big Data by Accessing Small Data
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SIGMOD
2009
ACM
121views Database» more  SIGMOD 2009»
15 years 11 months ago
Query-aware shrinking test databases
Keeping the test databases as small as possible leads to faster execution of tests and facilitates the task of completing the test cases and evaluating the actual outputs against ...
Claudio de la Riva, Javier Tuya, María Jos&...
PVLDB
2010
85views more  PVLDB 2010»
14 years 9 months ago
Xplus: A SQL-Tuning-Aware Query Optimizer
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
Herodotos Herodotou, Shivnath Babu
IPPS
2002
IEEE
15 years 4 months ago
Improving Performance of Multiple Sequence Alignment Analysis in Multi-Client Environments
This paper is concerned with the efficient execution of multiplesequence alignmentmethodsin a multipleclientenvironment. Multiple sequence alignment (MSA) is a computationally ex...
Ümit V. Çatalyürek, Eric Stahlber...
BDA
2007
15 years 25 days ago
PeerSum: Summary Management in P2P Systems
Sharing huge, massively distributed databases in P2P systems is inherently difficult. As the amount of stored data increases, data localization techniques become no longer suffi...
Rabab Hayek, Guillaume Raschia, Patrick Valduriez,...
SODA
1993
ACM
202views Algorithms» more  SODA 1993»
15 years 21 days ago
Approximate Nearest Neighbor Queries in Fixed Dimensions
Given a set of n points in d-dimensional Euclidean space, S ⊂ Ed , and a query point q ∈ Ed , we wish to determine the nearest neighbor of q, that is, the point of S whose Euc...
Sunil Arya, David M. Mount