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» Efficient Top-k Query Evaluation on Probabilistic Data
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SIGMOD
2011
ACM
276views Database» more  SIGMOD 2011»
14 years 9 months ago
Schedule optimization for data processing flows on the cloud
Scheduling data processing workflows (dataflows) on the cloud is a very complex and challenging task. It is essentially an optimization problem, very similar to query optimizati...
Herald Kllapi, Eva Sitaridi, Manolis M. Tsangaris,...
SIGMOD
2006
ACM
232views Database» more  SIGMOD 2006»
16 years 6 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 ...
HPDC
2002
IEEE
15 years 11 months ago
A Decentralized, Adaptive Replica Location Mechanism
We describe a decentralized, adaptive mechanism for replica location in wide-area distributed systems. Unlike traditional, hierarchical (e.g, DNS) and more recent (e.g., CAN, Chor...
Matei Ripeanu, Ian T. Foster
ACSC
2004
IEEE
15 years 10 months ago
In-Place versus Re-Build versus Re-Merge: Index Maintenance Strategies for Text Retrieval Systems
Indexes are the key technology underpinning efficient text search. A range of algorithms have been developed for fast query evaluation and for index creation, but update algorithm...
Nicholas Lester, Justin Zobel, Hugh E. Williams
DMSN
2007
ACM
15 years 10 months ago
Similarity-aware query allocation in sensor networks with multiple base stations
In this paper, we consider a large scale sensor network comprising multiple, say K, base stations and a large number of wireless sensors. Such an infrastructure is expected to be ...
Shili Xiang, Hock-Beng Lim, Kian-Lee Tan, Yongluan...