485 search results - page 32 / 97 » Processing complex aggregate queries over data streams |
121
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COMAD
2008
15 years 1 months ago
2008
Although many algorithms have been proposed for evaluating XPath queries containing un-ordered axes (child, descendant, parent and ancestor) against streaming XML data, there are ...
97
Voted
SAC
2008
ACM
14 years 12 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
106
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TKDE
2008
15 years 12 days ago
2008
With the advance of hardware and communication technologies, stream time series is gaining ever-increasing attention due to its importance in many applications such as financial da...
178
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SIGMOD
2009
ACM
16 years 22 days ago
2009
ACM
DejaVu is an event processing system that integrates declarative pattern matching over live and archived streams of events on top of a novel system architecture. We propose to dem...
107
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TKDE
2008
15 years 12 days ago
2008
We propose a novel approach based on predictive quantization (PQ) for online summarization of multiple time-varying data streams. A synopsis over a sliding window of most recent en...