515 search results - page 49 / 103 » Query Decomposition, Optimization and Processing in Multidat... |
DEXA
1995
Springer
15 years 1 months ago
1995
Springer
Abstract. The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of e...
123
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SIGIR
2010
ACM
14 years 4 months ago
2010
ACM
The size of the Web as well as user bases of search systems continue to grow exponentially. Consequently, providing subsecond query response times and high query throughput become...
106
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VLDB
2007
ACM
15 years 3 months ago
2007
ACM
Testing a database engine has been and continues to be a challenging task. The space of possible SQL queries along with their possible access paths is practically unbounded. Moreo...
MDM
2005
Springer
15 years 3 months ago
2005
Springer
In this paper we propose a query-driven approach for tuning the time/energy trade-off in sensor networks with mobile sensors. The tuning factors include re-positioning of mobile s...
82
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ICIP
2003
IEEE
15 years 11 months ago
2003
IEEE
In this paper, we evaluate and investigate two main types of relevance feedback algorithms; the Euclidean and the correlation?based approaches. In the first case, we examine heuri...