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» Optimization strategies for complex queries
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APWEB
2005
Springer
14 years 3 months ago
Multiresolution Query Optimization in an Online Environment
Multiresolution (or multi-scale) techniques make it possible for Web-based GIS applications to access large dataset. The performance of such systems relies on data transmission ove...
Kai Xu 0003, Xiaofang Zhou
VLDB
1994
ACM
128views Database» more  VLDB 1994»
14 years 2 months ago
From Nested-Loop to Join Queries in OODB
Most declarative SQL-like query languagesfor object-oriented database systems (OOSQL) are orthogonal languages allowing for arbitrary nesting of expressions in the select-, from-,...
Hennie J. Steenhagen, Peter M. G. Apers, Henk M. B...
AAAI
2010
13 years 11 months ago
Optimal Strategies for Reviewing Search Results
Web search engines respond to a query by returning more results than can be reasonably reviewed. These results typically include the title, link, and snippet of content from the t...
Jeff Huang, Anna Kazeykina
ICDE
2007
IEEE
89views Database» more  ICDE 2007»
14 years 2 months ago
A Flexible Query Graph Based Model for the Efficient Execution of Continuous Queries
In this paper, we propose a simple and flexible execution model that (i) supports a wide spectrum of alternative optimization and execution strategies and their mixtures, (ii) pro...
Yijian Bai, Hetal Thakkar, Haixun Wang, Carlo Zani...
JASIS
2010
170views more  JASIS 2010»
13 years 8 months ago
Analyzing URL queries
This study investigated a relatively unexamined query type, queries composed of URLs. The extent, variation and user click-through behavior was examined to determine the intent be...
Wei Meng Lee, Mark Sanderson