496 search results - page 79 / 100 » Machine models and lower bounds for query processing |
CIKM
2005
Springer
14 years 1 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
ICALP
2003
Springer
14 years 27 days ago
2003
Springer
Although evolutionary algorithms (EAs) are widely used in practical optimization, their theoretical analysis is still in its infancy. Up to now results on the (expected) runtime ar...
DC
2007
13 years 7 months ago
2007
Abstract Many reliable distributed systems are consensusbased and typically operate under two modes: a fast normal mode in failure-free synchronous periods, and a slower recovery m...
CIKM
2009
Springer
14 years 10 days ago
2009
Springer
This paper describes a hidden Markov model (HMM) based approach to perform search interface segmentation. Automatic processing of an interface is a must to access the invisible co...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of estimating set-expression cardinality in a distributed streaming environment where rapid update streams originating at remote sites are continually tran...