Sciweavers

552 search results - page 39 / 111
» On the Complexity of Join Predicates
Sort
View
SSDBM
2009
IEEE
174views Database» more  SSDBM 2009»
14 years 4 months ago
Optimization and Execution of Complex Scientific Queries over Uncorrelated Experimental Data
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...
Ruslan Fomkin, Tore Risch
SIGMOD
2000
ACM
161views Database» more  SIGMOD 2000»
14 years 2 months ago
Answering Complex SQL Queries Using Automatic Summary Tables
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
Markos Zaharioudakis, Roberta Cochrane, George Lap...
SIGMOD
2011
ACM
442views Database» more  SIGMOD 2011»
13 years 28 days ago
ArrayStore: a storage manager for complex parallel array processing
We present the design, implementation, and evaluation of ArrayStore, a new storage manager for complex, parallel array processing. ArrayStore builds on prior work in the area of m...
Emad Soroush, Magdalena Balazinska, Daniel L. Wang
ICDE
2007
IEEE
113views Database» more  ICDE 2007»
14 years 11 months ago
Reducing Order Enforcement Cost in Complex Query Plans
Algorithms that exploit sort orders are widely used to implement joins, grouping, duplicate elimination and other set operations. Query optimizers traditionally deal with sort ord...
Ravindra Guravannavar, S. Sudarshan
MAAMAW
1993
Springer
14 years 2 months ago
Coalition Formation Among Autonomous Agents: Strategies and Complexity
Autonomous agents are designed to reach goals that were pre-de ned by their operators. An important way to execute tasks and to maximize payo is to share resources and to cooperate...
Onn Shehory, Sarit Kraus