1552 search results - page 38 / 311 » Efficient Aggregate Computation over Data Streams |
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of resource sharing when processing large numbers of continuous queries. We specifically address sliding-window aggregates over data streams, an important...
SECON
2008
IEEE
14 years 2 months ago
2008
IEEE
— What is the fastest rate at which we can collect a stream of aggregated data from a set of wireless sensors organized as a tree? We explore a hierarchy of techniques using real...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...
WWW
2008
ACM
13 years 7 months ago
2008
ACM
We propose a novel Partition Path-Based (PPB) grouping strategy to store compressed XML data in a stream of blocks. In addition, we employ a minimal indexing scheme called Block S...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We address the problem of computing approximate answers to continuous sliding-window joins over data streams when the available memory may be insufficient to keep the entire join...