2674 search results - page 275 / 535 » Data Models and Query Languages for Spatial Databases |
177
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VLDB
2004
ACM
15 years 12 months ago
2004
ACM
Current developments in processing data streams are based on the best-effort principle and therefore not adequate for many application areas. When sensor data is gathered by inte...
190
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VLDB
1999
ACM
15 years 11 months ago
1999
ACM
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...
292
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ICDE
2006
IEEE
16 years 8 months ago
2006
IEEE
The high quality, structured data from Web structured sources is invaluable for many applications. Hidden Web databases are not directly crawlable by Web search engines and are on...
242
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PODS
1997
ACM
15 years 10 months ago
1997
ACM
In this paper, we present a new cost model for nearest neighbor search in high-dimensional data space. We first analyze different nearest neighbor algorithms, present a generaliza...
178
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...