2674 search results - page 192 / 535 » Data Models and Query Languages for Spatial Databases |
210
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SIGMETRICS
2010
ACM
15 years 4 months ago
2010
ACM
As modern multi-tier systems are becoming increasingly large and complex, it becomes more difficult for system analysts to understand the overall behavior of the system, and diag...
241
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
The Boolean semantics of SQL queries cannot adequately capture the "fuzzy" preferences and "soft" criteria required in non-traditional data retrieval applicati...
237
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...
199
Voted
WEBDB
2010
Springer
15 years 4 months ago
2010
Springer
The Semantic Web, which represents a web of knowledge, offers new opportunities to search for knowledge and information. To harvest such search power requires robust and scalable ...
151
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SIGIR
2002
ACM
15 years 6 months ago
2002
ACM
We develop a method for predicting query performance by computing the relative entropy between a query language model and the corresponding collection language model. The resultin...