3836 search results - page 123 / 768 » Semantics of Database Transformations |
174
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CIKM
2004
Springer
16 years 6 days ago
2004
Springer
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
182
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
We propose PASTE, the first differentially private aggregation algorithms for distributed time-series data that offer good practical utility without any trusted server. PASTE add...
157
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PODS
2006
ACM
16 years 7 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
183
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CIVR
2004
Springer
16 years 6 days ago
2004
Springer
In this paper, we present an approach for the retrieval of natural scenes based on a semantic modeling step. Semantic modeling stands for the classification of local image regions...
192
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VLC
2008
15 years 6 months ago
2008
We present the new notion of enforced generative pattern, a structure that declares positive or negative conditions that must be satisfied by a model. Patterns are applied to tran...