27756 search results - page 129 / 5552 » Process Query Systems |
147
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EDBT
2006
ACM
16 years 4 months ago
2006
ACM
Abstract. Data stream systems execute a dynamic workload of longrunning and one-time queries, with the streaming inputs typically bounded by sliding windows. For efficiency, window...
231
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
119
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INFOCOM
2009
IEEE
15 years 11 months ago
2009
IEEE
—We propose a Smart Trend-Traversal (STT) protocol for RFID tag arbitration, which effectively reduces the collision overhead occurred in the arbitration process. STT, a Query Tr...
132
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VLDB
1994
ACM
15 years 8 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
127
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VLDB
1999
ACM
15 years 8 months ago
1999
ACM
Data intensive applications today usually run in either a clientserver or a middleware environment. In either case, they must efficiently handle both database queries, which proc...