486 search results - page 66 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
121
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SIGMOD
2003
ACM
16 years 1 months ago
2003
ACM
In many applications involving continuous data streams, data arrival is bursty and data rate fluctuates over time. Systems that seek to give rapid or real-time query responses in ...
135
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DASFAA
2006
IEEE
15 years 7 months ago
2006
IEEE
Abstract. In emerging data stream applications, data sources are typically distributed. Evaluating multi-join queries over streams from different sources may incur large communica...
109
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SIGMOD
2002
ACM
16 years 1 months ago
2002
ACM
In this paper, we ask if the traditional relational query acceleration techniques of summary tables and covering indexes have analogs for branching path expression queries over tr...
210
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VLDB
2007
ACM
16 years 1 months ago
2007
ACM
The modeling of high level semantic events from low level sensor signals is important in order to understand distributed phenomena. For such content-modeling purposes, transformat...
203
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ICDE
2003
IEEE
16 years 2 months ago
2003
IEEE
XML path queries form the basis of complex filtering of XML data. Most current XML path query processing techniques can be divided in two groups. Navigation-based algorithms compu...