318 search results - page 21 / 64 » Optimization of Query Streams Using Semantic Prefetching |
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
There has been much recent interest in on-line data mining. Existing mining algorithms designed for stored data are either not applicable or not effective on data streams, where r...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
In this paper, we present the design, implementation, and evaluation of a system that executes complex event queries over real-time streams of RFID readings encoded as events. The...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
PODS
2010
ACM
14 years 24 days ago
2010
ACM
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...
JUCS
2010
13 years 2 months ago
2010
: We address the question of how to communicate among distributed processes values such as real numbers, continuous functions and geometrical solids with arbitrary precision, yet e...