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SIGMOD
2006
ACM
232views Database» more  SIGMOD 2006»
16 years 4 months ago
To search or to crawl?: towards a query optimizer for text-centric tasks
Text is ubiquitous and, not surprisingly, many important applications rely on textual data for a variety of tasks. As a notable example, information extraction applications derive...
Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay ...
SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
16 years 4 months ago
RankSQL: Query Algebra and Optimization for Relational Top-k Queries
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...
SIGMOD
2003
ACM
136views Database» more  SIGMOD 2003»
16 years 4 months ago
A Characterization of the Sensitivity of Query Optimization to Storage Access Cost Parameters
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
Frederick Reiss, Tapas Kanungo
SIGMOD
2002
ACM
93views Database» more  SIGMOD 2002»
16 years 4 months ago
Implementing database operations using SIMD instructions
Modern CPUs have instructions that allow basic operations to be performed on several data elements in parallel. These instructions are called SIMD instructions, since they apply a...
Jingren Zhou, Kenneth A. Ross
MOBISYS
2006
ACM
16 years 3 months ago
FireWxNet: a multi-tiered portable wireless system for monitoring weather conditions in wildland fire environments
In this paper we present FireWxNet, a multi-tiered portable wireless system for monitoring weather conditions in rugged wildland fire environments. FireWxNet provides the fire fig...
Carl Hartung, Richard Han, Carl Seielstad, Saxon H...
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