709 search results - page 43 / 142 » Efficient Evaluation of All-Nearest-Neighbor Queries |
188
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RTCSA
2007
IEEE
16 years 1 days ago
2007
IEEE
RFID middleware systems collect and filter RFID streaming data gathered continuously by numerous readers to process requests from applications. These requests are called continuou...
245
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ICDE
2001
IEEE
16 years 7 months ago
2001
IEEE
We describe efficient algorithms for accurately estimating the number of matches of a small node-labeled tree, i.e., a twig, in a large node-labeled tree, using a summary data str...
251
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ICDE
1999
IEEE
16 years 7 months ago
1999
IEEE
We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of...
177
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BNCOD
2009
15 years 6 months ago
2009
We study the expressiveness of a positive fragment of path queries, denoted Path+ , on node-labeled trees documents. The expressiveness of Path+ is studied from two angles. First, ...
147
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SIGMOD
1994
ACM
15 years 9 months ago
1994
ACM
We present a framework which allows the user to access and manipulate data uniformly, regardless of whether it resides in a database or in the file system (or in both). A key issu...