383 search results - page 49 / 77 » Query Containment for Conjunctive Queries with Regular Expre... |
EDBT
2006
ACM
15 years 12 months ago
2006
ACM
The problem of rewriting queries using views has received significant attention because of its applications in a wide variety of datamanagement problems. For select-project-join SQ...
PR
2002
14 years 11 months ago
2002
In this paper, we present the results of a project that seeks to transform low-level features to a higher level of meaning. This project concerns a technique, latent semantic inde...
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VLDB
2007
ACM
16 years 1 days ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
JAPLL
2010
14 years 10 months ago
2010
We introduce the extended modal logic EML with regularity constraints and full Presburger constraints on the number of children that generalize graded modalities, also known as nu...
AUSDM
2008
Springer
15 years 1 months ago
2008
Springer
Exploratory data mining is fundamental to fostering an appreciation of complex datasets. For large and continuously growing datasets, such as obtained by regular sampling of an or...