651 search results - page 116 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
TC
2011
13 years 3 months ago
2011
— Processing the gathered information efficiently is a key functionality for wireless sensor networks. In this article, we study the time complexity, message complexity (number ...
CORR
2010
Springer
13 years 9 months ago
2010
Springer
Event-driven automation of reactive functionalities for complex event processing is an urgent need in today's distributed service-oriented architectures and Web-based event-d...
DEBS
2003
ACM
14 years 2 months ago
2003
ACM
We present a design of a distributed publish-subscribe system that extends the functionality of messaging middleware with “relational subscriptions”, to support timely updates...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. In ...
PODS
2007
ACM
14 years 9 months ago
2007
ACM
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...