7576 search results - page 1140 / 1516 » On Querying Ontologies and Databases |
275
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VLDB
2007
ACM
16 years 7 months ago
2007
ACM
Several recent papers have focused on OLAP over imprecise data, where each fact can be a region, instead of a point, in a multidimensional space. They have provided a multiple-wor...
306
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
Labeling schemes lie at the core of query processing for many XML database management systems. Designing labeling schemes for dynamic XML documents is an important problem that ha...
315
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SIGMOD
2005
ACM
16 years 7 months ago
2005
ACM
XML documents are normally stored as plain text files. Hence, the natural and most convenient way to update XML documents is to simply edit the text files. But efficient query eva...
222
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SIGMOD
2001
ACM
16 years 7 months ago
2001
ACM
As XML has developed over the past few years, its role has expanded beyond its original domain as a semantics-preserving markup language for online documents, and it is now also t...
200
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PODS
2008
ACM
16 years 7 months ago
2008
ACM
We revisit the classical chase procedure, studying its properties as well as its applicability to standard database problems. We settle (in the negative) the open problem of decid...