4908 search results - page 731 / 982 » On the Complexity of Optimal K-Anonymity |
264
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
330
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
Empowering users to access databases using simple keywords can relieve the users from the steep learning curve of mastering a structured query language and understanding complex a...
268
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Existing temporal pattern mining assumes that events do not have any duration. However, events in many real world applications have durations, and the relationships among these ev...
253
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SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
Data streaming systems are becoming essential for monitoring applications such as financial analysis and network intrusion detection. These systems often have to process many simi...
208
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...