3368 search results - page 248 / 674 » The Complexity of Query Reliability |
252
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
224
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
We consider the problem of efficiently producing ranked results for keyword search queries over hyperlinked XML documents. Evaluating keyword search queries over hierarchical XML ...
181
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DCOSS
2007
Springer
16 years 23 days ago
2007
Springer
Many emergent distributed sensing applications need to keep track of mobile entities across multiple sensor networks connected via an IP network. To simplify the realization of suc...
156
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DMSN
2006
ACM
16 years 17 days ago
2006
ACM
This paper presents a novel research direction in the field of sensor data management. It concerns transactional support in heterogeneous large scale sensor systems. Besides well...
176
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GIR
2006
ACM
16 years 17 days ago
2006
ACM
In this paper, we present a novel indexing data structure called RDHT (Range capable Distributed Hash Table) derived from skip lists and specifically designed for storing and retr...