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EDBT
2006
ACM
13 years 9 months ago
2006
ACM
There has been growing interest in the addition of update operations to languages that operate on XML data, for example, XQuery and XJ. These update operations support efficient an...
EDBT
2006
ACM
13 years 7 months ago
2006
ACM
Random sampling is a well-known technique for approximate processing of large datasets. We introduce a set of algorithms for incremental maintenance of large random samples on seco...
EDBT
2006
ACM
14 years 5 months ago
2006
ACM
Abstract. We present in this paper a new model for representing probabilistic information in a semi-structured (XML) database, based on the use of probabilistic event variables. Th...
EDBT
2006
ACM
14 years 5 months ago
2006
ACM
Ontologies are increasingly used to represent the intended real-world semantics of data and services in information systems. Unfortunately, different databases often do not relate ...
EDBT
2006
ACM
14 years 5 months ago
2006
ACM
In this work we address the problem of managing the reactive behavior in distributed environments in which data continuously changes over time, where the users may need to explicit...