7593 search results - page 1363 / 1519 » Querying XML Databases |
155
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PODS
2003
ACM
16 years 4 months ago
2003
ACM
Full disjunctions are an associative extension of the outerjoin operator to an arbitrary number of relations. Their main advantage is the ability to maximally combine data from di...
145
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PODS
2005
ACM
16 years 4 months ago
2005
ACM
The challenge of monitoring massive amounts of data generated by communication networks has led to the interest in data stream processing. We study streams of edges in massive com...
133
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PODS
2006
ACM
16 years 4 months ago
2006
ACM
Skew is prevalent in data streams, and should be taken into account by algorithms that analyze the data. The problem of finding "biased quantiles"-- that is, approximate...
129
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PODS
2006
ACM
16 years 4 months ago
2006
ACM
The most acute information management challenges today stem from organizations relying on a large number of diverse, interrelated data sources, but having no means of managing the...
146
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EDBT
2004
ACM
16 years 4 months ago
2004
ACM
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...