Sciweavers

191 search results - page 15 / 39
» On producing join results early
Sort
View
SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
14 years 10 months ago
Selectivity Estimation using Probabilistic Models
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
Lise Getoor, Benjamin Taskar, Daphne Koller
SIGMOD
2010
ACM
259views Database» more  SIGMOD 2010»
14 years 2 months ago
PODS: a new model and processing algorithms for uncertain data streams
Uncertain data streams, where data is incomplete, imprecise, and even misleading, have been observed in many environments. Feeding such data streams to existing stream systems pro...
Thanh T. L. Tran, Liping Peng, Boduo Li, Yanlei Di...
ICDE
2012
IEEE
224views Database» more  ICDE 2012»
12 years 8 days ago
Exploiting Common Subexpressions for Cloud Query Processing
—Many companies now routinely run massive data analysis jobs – expressed in some scripting language – on large clusters of low-end servers. Many analysis scripts are complex ...
Yasin N. Silva, Paul-Ake Larson, Jingren Zhou
ICFP
2003
ACM
14 years 9 months ago
Polish parsers, step by step
We present the derivation of a space efficient parser combinator library: the constructed parsers do not keep unnecessary references to the input, produce online results and effic...
R. John M. Hughes, S. Doaitse Swierstra
SIGGRAPH
1996
ACM
14 years 2 months ago
Image-Guided Streamline Placement
Accurate control of streamline density is key to producing several effective forms of visualization of 2-dimensional vector fields. We introduce a technique that uses an energy fu...
Greg Turk, David Banks