1430 search results - page 170 / 286 » Query operations for moving objects database systems |
268
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
SQL tuning--the attempt to improve a poorly-performing execution plan produced by the database query optimizer-is a critical aspect of database performance tuning. Ironically, as ...
292
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GIS
2004
ACM
16 years 7 months ago
2004
ACM
act Model of Three-Dimensional Spatial Data Types Markus Schneider & Brian E Weinrich University of Florida Department of Computer & Information Science & Engineering G...
162
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ER
2006
Springer
15 years 10 months ago
2006
Springer
Emergent Semantics is a new paradigm for inferring semantic meaning from implicit feedback by a sufficiently large number of users of an object retrieval system. In this paper, we ...
143
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MIS
2001
Springer
15 years 10 months ago
2001
Springer
Because digital images are not meaningful by themselves, images are often coupled with some descriptive or qualitative data in an image database. Moreover the division of these da...
178
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COOPIS
1996
IEEE
15 years 10 months ago
1996
IEEE
A federated database is comprised of multiple interconnected database systems that primarily operate independently but cooperate to a certain extent. Global integrity constraints c...