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EDBT
2012
ACM
247views Database» more  EDBT 2012»
11 years 8 months ago
Heuristics-based query optimisation for SPARQL
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
Petros Tsialiamanis, Lefteris Sidirourgos, Irini F...
SIGMOD
2006
ACM
232views Database» more  SIGMOD 2006»
14 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 ...
P2P
2006
IEEE
229views Communications» more  P2P 2006»
14 years 7 days ago
Cost-Aware Processing of Similarity Queries in Structured Overlays
Large-scale distributed data management with P2P systems requires the existence of similarity operators for queries as we cannot assume that all users will agree on exactly the sa...
Marcel Karnstedt, Kai-Uwe Sattler, Manfred Hauswir...
PLDI
2010
ACM
13 years 11 months ago
Green: a framework for supporting energy-conscious programming using controlled approximation
Energy-efficient computing is important in several systems ranging from embedded devices to large scale data centers. Several application domains offer the opportunity to tradeof...
Woongki Baek, Trishul M. Chilimbi
KDD
2007
ACM
191views Data Mining» more  KDD 2007»
14 years 6 months ago
Cost-effective outbreak detection in networks
Given a water distribution network, where should we place sensors to quickly detect contaminants? Or, which blogs should we read to avoid missing important stories? These seemingl...
Andreas Krause, Carlos Guestrin, Christos Faloutso...