1168 search results - page 141 / 234 » Optimization strategies for complex queries |
EMO
2005
Springer
15 years 3 months ago
2005
Springer
Water systems often allow efficient water uses via water reuse and/or recirculation. Defining the network layout connecting water-using processes is a complex problem which involv...
SIGMOD
1998
ACM
15 years 2 months ago
1998
ACM
In this paper, we propose the Pyramid-Technique, a new indexing method for high-dimensional data spaces. The PyramidTechnique is highly adapted to range query processing using the...
118
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SIGIR
2011
ACM
14 years 28 days 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...
72
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EDBT
2009
ACM
15 years 2 months ago
2009
ACM
Decision Support Systems (DSS) are information systems that support decision making processes. In many scenarios these systems are built on top of data managed by DBMSs and make e...
GLOBECOM
2008
IEEE
15 years 4 months ago
2008
IEEE
—Using CDMA technology, one has to contend with interference in frequency-selective channels caused by multipath propagation and fading. Transmitter-based methods such as Zero Fo...