6746 search results - page 470 / 1350 » Multimodal Database Query |
251
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Uncertain data is inherent in a few important applications such as environmental surveillance and mobile object tracking. Top-k queries (also known as ranking queries) are often n...
304
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SIGMOD
2005
ACM
16 years 6 months ago
2005
ACM
This paper proposes a generic framework for monitoring continuous spatial queries over moving objects. The framework distinguishes itself from existing work by being the first to ...
191
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
163
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PODS
2005
ACM
16 years 6 months ago
2005
ACM
We investigate the question of whether a query can be answered using a set V of views. We first define the problem in information-theoretic terms: we say that V determines if V pr...
161
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SSDBM
2009
IEEE
16 years 1 months ago
2009
IEEE
We present a novel sensor network query processing architecture that (a) covers all the query optimization phases that are required to map a declarative query to executable code; ...