26 search results - page 5 / 6 » Optimization of Bounded Continuous Search Queries Based on R... |
INFOCOM
2008
IEEE
14 years 1 days ago
2008
IEEE
—We study the problem of data-driven routing and navigation in a distributed sensor network over a continuous scalar field. Specifically, we address the problem of searching fo...
VLDB
2002
ACM
13 years 5 months ago
2002
ACM
Many modern database applications require content-based similarity search capability in numeric attribute space. Further, users' notion of similarity varies between search se...
VLDB
1997
ACM
13 years 9 months ago
1997
ACM
Query optimizers that explore a search space exhaustively using transformation rules usually apply all possible rules on each alternative, and stop when no new information is prod...
SIGIR
2011
ACM
12 years 8 months ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...