9124 search results - page 1667 / 1825 » Requirements-Based Design Evaluation |
234
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
An important problem for many location-based applications is the continuous evaluation of proximity relations among moving objects. These relations express whether a given set of ...
260
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...
283
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
The proliferation of database-driven web sites (or web-databases) has brought upon a plethora of applications where both Quality of Service (QoS) and Quality of Data (QoD) are of ...
239
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Two trends are converging to make the CPU cost of a table scan a more important component of database performance. First, table scans are becoming a larger fraction of the query p...
271
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...