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168
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
We are inevitably moving into a realm where small and inexpensive wireless devices would be seamlessly embedded in the physical world and form a wireless sensor network in order t...
140
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
Random sampling is one of the most fundamental data management tools available. However, most current research involving sampling considers the problem of how to use a sample, and...
135
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
Existing methods for prediction in spatio-temporal databases assume that objects move according to linear functions. This severely limits their applicability, since in practice mo...
146
Voted
PODS
2004
ACM
16 years 4 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. Given a first-order query Q, the problem is to decide whether there is an equivalent query whi...
137
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EDBT
2004
ACM
16 years 4 months ago
2004
ACM
Abstract. As XML schemas evolve over time or as applications are integrated, it is sometimes necessary to validate an XML document known to conform to one schema with respect to an...