448 search results - page 24 / 90 » Queries and Constraints on Semi-structured Data |
EDBT
2008
ACM
15 years 9 months ago
2008
ACM
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
72
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DAGSTUHL
2007
14 years 11 months ago
2007
It is well known that local patterns are at the core of a lot of knowledge which may be discovered from data. Nevertheless, use of local patterns is limited by their huge number an...
PVLDB
2010
14 years 8 months ago
2010
Violations of functional dependencies (FDs) are common in practice, often arising in the context of data integration or Web data extraction. Resolving these violations is known to...
103
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DEXAW
2007
IEEE
15 years 1 months ago
2007
IEEE
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...
100
Voted
ICDT
2012
ACM
13 years 1 days ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...