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VLDB
1994
ACM
153views Database» more  VLDB 1994»
15 years 2 months ago
Optimization Algorithms for Exploiting the Parallelism-Communication Tradeoff in Pipelined Parallelism
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering followed by parallelization. We focus on the parallelization phase a...
Waqar Hasan, Rajeev Motwani
ICDE
2005
IEEE
146views Database» more  ICDE 2005»
15 years 3 months ago
Best Effort Query Processing in DHT-based P2P Systems
Structured P2P systems in the form of distributed hash tables (DHT) are a promising approach for building massively distributed data management platforms. However, for many applic...
Philipp Rösch, Kai-Uwe Sattler, Christian von...
VLDB
1995
ACM
155views Database» more  VLDB 1995»
15 years 1 months ago
Aggregate-Query Processing in Data Warehousing Environments
In this paper we introduce generalized projections (GPs), an extension of duplicateeliminating projections, that capture aggregations, groupbys, duplicate-eliminating projections ...
Ashish Gupta, Venky Harinarayan, Dallan Quass
EDBTW
2004
Springer
15 years 3 months ago
Query Recommendation Using Query Logs in Search Engines
In this paper we propose a method that, given a query submitted to a search engine, suggests a list of related queries. The related queries are based in previously issued queries, ...
Ricardo A. Baeza-Yates, Carlos A. Hurtado, Marcelo...
ICDE
2008
IEEE
137views Database» more  ICDE 2008»
15 years 11 months ago
Efficient Processing of XML Update Streams
This paper introduces a framework for processing continuous, exact queries over continuous update XML streams. Instead of eagerly performing the updates on cached portions of the s...
Leonidas Fegaras