14248 search results - page 235 / 2850 » Queries |
183
Voted
SIGMOD
2004
ACM
16 years 5 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...
151
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PODS
2005
ACM
16 years 5 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...
184
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PODS
2008
ACM
16 years 5 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
155
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ICSE
2004
IEEE-ACM
16 years 5 months ago
2004
IEEE-ACM
Many data-intensive applications dynamically construct queries in response to client requests and execute them. Java servlets, e.g., can create string representations of SQL queri...
164
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PERCOM
2005
ACM
16 years 5 months ago
2005
ACM
Topographic querying is the process of extracting data from a sensor network for understanding the graphic delineation of features of interest in a terrain. Query processing techn...