2191 search results - page 71 / 439 » Query Processing in the ROL system |
SIGMOD
2011
ACM
14 years 18 days ago
2011
ACM
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
KBS
2007
14 years 9 months ago
2007
Event based analysis plays an important role in reducing the latency of information delivery in an event driven world. Also, the perception of an ‘event’ by a user is at a hig...
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SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...
VLDB
1994
ACM
15 years 1 months ago
1994
ACM
We describe the integration of a structuredtext retrieval system (TextMachine) into an object-oriented database system (OpenODB). We use the external function capability of the da...
111
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IS
2011
14 years 4 months ago
2011
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with ...