Sciweavers

429 search results - page 53 / 86
» A SAT approach to query optimization in mediator systems
Sort
View
ICDE
2005
IEEE
120views Database» more  ICDE 2005»
14 years 10 months ago
Progressive Distributed Top k Retrieval in Peer-to-Peer Networks
Query processing in traditional information management systems has moved from an exact match model to more flexible paradigms allowing cooperative retrieval by aggregating the dat...
Wolf-Tilo Balke, Wolfgang Nejdl, Wolf Siberski, Uw...
ISNN
2010
Springer
14 years 1 months ago
Multiattribute Bayesian Preference Elicitation with Pairwise Comparison Queries
Preference elicitation (PE) is an important component of interactive decision support systems that aim to make optimal recommendations to users by actively querying their preferen...
Shengbo Guo, Scott Sanner
DASFAA
2004
IEEE
158views Database» more  DASFAA 2004»
14 years 13 days ago
A Cost Model for Spatial Intersection Queries on RI-Trees
Abstract. The efficient management of interval sequences represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tr...
Hans-Peter Kriegel, Martin Pfeifle, Marco Pöt...
VLDB
2007
ACM
137views Database» more  VLDB 2007»
14 years 2 months ago
Detecting Attribute Dependencies from Query Feedback
Real-world datasets exhibit a complex dependency structure among the data attributes. Learning this structure is a key task in automatic statistics configuration for query optimi...
Peter J. Haas, Fabian Hueske, Volker Markl
SIGMOD
2011
ACM
276views Database» more  SIGMOD 2011»
12 years 11 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,...