3777 search results - page 374 / 756 » Estimating the Quality of Databases |
227
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ICDT
2009
ACM
16 years 4 months ago
2009
ACM
In this paper we investigate algorithms and lower bounds for summarization problems over a single pass data stream. In particular we focus on histogram construction and K-center c...
123
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KDD
2004
ACM
16 years 4 months ago
2004
ACM
The paper presents a method for pruning frequent itemsets based on background knowledge represented by a Bayesian network. The interestingness of an itemset is defined as the abso...
142
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
Exploratory ad-hoc queries could return too many answers ? a phenomenon commonly referred to as "information overload". In this paper, we propose to automatically catego...
131
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
131
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PODS
2002
ACM
16 years 4 months ago
2002
ACM
Decision support system users typically submit batches of range-sum queries simultaneously rather than issuing individual, unrelated queries. We propose a wavelet based technique ...