6740 search results - page 151 / 1348 » Querying Databases with Taxonomies |
189
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TKDE
2010
15 years 4 months ago
2010
—Recently, many new applications, such as sensor data monitoring and mobile device tracking, raise up the issue of uncertain data management. Compared to “certain” data, the ...
298
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ICDE
2002
IEEE
16 years 7 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
109
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VLDB
2004
ACM
15 years 12 months ago
2004
ACM
Query processing in database systems has developed beyond mere exact matching of attribute values. Scoring database objects and retrieving only the top k matches or Pareto-optimal...
272
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
In this paper, we study a novel form of continuous nearest neighbor queries in the presence of obstacles, namely continuous obstructed nearest neighbor (CONN) search. It considers...
138
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VLDB
2004
ACM
15 years 12 months ago
2004
ACM
In this short paper we present the coDB P2P DB system. A network of databases, possibly with different schemas, are interconnected by means of GLAV coordination rules, which are ...