285 search results - page 23 / 57 » Optimization of Real Conjunctive Queries |
IS
2011
13 years 2 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 ...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Most of the search engine optimization techniques attempt to predict users interest by learning from the past information collected from different sources. But, a user's curr...
PODS
2010
ACM
14 years 13 days ago
2010
ACM
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...
IS
2008
13 years 7 months ago
2008
Consistent query answering is the problem of characterizing and computing the semantically correct answers to queries from a database that may not satisfy certain integrity constr...
WISE
2005
Springer
14 years 28 days ago
2005
Springer
Abstract. Approximation has been identified as a potential way of reducing the complexity of logical reasoning. Here we explore approximation for speeding up instance retrieval in...