118 search results - page 16 / 24 » Logical Design of Generalizations in Object-relational Datab... |
EDBTW
2010
Springer
14 years 2 months ago
2010
Springer
We investigate the complexity of performing updates on probabilistic XML data for various classes of probabilistic XML documents of different succinctness. We consider two elemen...
SAC
2005
ACM
14 years 1 months ago
2005
ACM
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague ...
PODS
2010
ACM
14 years 21 days ago
2010
ACM
We investigate a higher-order query language that embeds operators of the positive relational algebra within the simply-typed λ-calculus. Our language allows one to succinctly de...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Many content-oriented applications require a scalable text index. Building such an index is challenging. In addition to the logic of inserting and searching documents, developers ...
DOLAP
2007
ACM
13 years 11 months ago
2007
ACM
In this paper, we deal with the problem of determining the best possible physical implementation of an ETL workflow, given its logical-level description and an appropriate cost mo...