712 search results - page 131 / 143 » Decoupled Query Optimization for Federated Database Systems |
GIS
1995
ACM
15 years 1 months ago
1995
ACM
Polygonal objects are characterized by the following well-known parameters: number of vertices, area, perimeter and so on. These parameters describe the data sets that are used in...
163
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
Querying XML effectively and efficiently using declarative languages such as XQuery and XPath has been widely studied in both academic and industrial settings. Most RDBMS vendors ...
165
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ICDE
2006
IEEE
15 years 10 months ago
2006
IEEE
Counting in general, and estimating the cardinality of (multi-) sets in particular, is highly desirable for a large variety of applications, representing a foundational block for ...
153
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VLDB
2006
ACM
15 years 9 months ago
2006
ACM
The objective of extensible DBMSs is to ease the construction of specialized DBMSs for nontraditional applications. Although much work has been done in providing various levels of ...
165
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ICDE
2003
IEEE
15 years 10 months ago
2003
IEEE
We are interested in capturing time series generated by small wireless electronic sensors. Battery-operated sensors must avoid heavy use of their wireless radio which is a key cau...