2095 search results - page 207 / 419 » Modeling and Querying Semi-structured Data |
154
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ADBIS
2010
Springer
15 years 8 months ago
2010
Springer
Abstract. The need for location-based services has motivated an important research effort in the efficient processing of location-dependent queries. Most of the existing approaches...
161
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CIDR
2007
15 years 8 months ago
2007
We propose a radical approach to relational query processing that aims at automatically and consistently achieving a good performance on any memory hierarchy. We believe this auto...
177
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DMDW
2000
15 years 8 months ago
2000
View materialization is a central issue in logical design of data warehouses since it is one of the most powerful techniques to improve the response to the workload. Most approach...
181
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JAPLL
2010
15 years 5 months ago
2010
The relational model has recently been extended to so-called K-relations in which tuples are assigned a unique value in a semiring K. A query language, denoted by RAC K , similar ...
272
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Consider multiple users searching for a hotel room, based on size, cost, distance to the beach, etc. Users may have variable preferences expressed by different weights on the attri...