1487 search results - page 28 / 298 » Representing and Querying Data Transformations |
124
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PODS
2012
ACM
13 years 3 months ago
2012
ACM
Over the past several decades, the study of conjunctive queries has occupied a central place in the theory and practice of database systems. In recent years, conjunctive queries h...
193
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SIGMOD
2005
ACM
16 years 1 months ago
2005
ACM
Online Scientific Applications (OSA) require statistical analysis of large multidimensional datasets. Towards this end, we have designed and developed a data storage and retrieval...
202
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VLDB
2006
ACM
16 years 1 months ago
2006
ACM
While the information published in the form of XML-compliant documents keeps fast mounting up, efficient and effective query processing and optimization for XML have now become mor...
CAISE
2004
Springer
15 years 6 months ago
2004
Springer
This paper introduces an extension to the hypergraph data model used in the AutoMed data intergration approach that allows constraints common in static data modelling languages to ...
108
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PVLDB
2008
15 years 24 days ago
2008
We study the problem of extracting flattened tuple data from streaming, hierarchical XML data. Tuple-extraction queries are essentially XML pattern queries with multiple extractio...