156 search results - page 1 / 32 » Time-Decayed Correlated Aggregates over Data Streams. |
SDM
2009
SIAM
14 years 1 months ago
2009
SIAM
Data stream analysis frequently relies on identifying correlations and posing conditional queries on the data after it has been seen. Correlated aggregates form an important examp...
ICTCS
2005
Springer
13 years 9 months ago
2005
Springer
Abstract. We consider the problem of maintaining polynomial and exponential decay aggregates of a data stream, where the weight of values seen from the stream diminishes as time el...
ICDE
2009
IEEE
14 years 6 months ago
2009
IEEE
Temporal data analysis in data warehouses and data streaming systems often uses time decay to reduce the importance of older tuples, without eliminating their influence, on the res...
SIGMOD
2001
ACM
14 years 4 months ago
2001
ACM
ICDE
2012
IEEE
11 years 6 months ago
2012
IEEE
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...