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VLDB
2007
ACM
15 years 11 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
ICDE
2005
IEEE
15 years 4 months ago
2005
IEEE
Sybase's flagship database product, Adaptive Server Enterprise provides Native XML processing (NXS) support. In this paper we present our experience related to query processi...
CCGRID
2005
IEEE
15 years 4 months ago
2005
IEEE
ABSTRACT. Objectives. This paper addresses Grid-based integration and access of distributed data from infectious disease patient databases, literature on in-vitro and in-vivo pharm...
VLDB
1995
ACM
15 years 2 months ago
1995
ACM
We provide several new sampling-based estimators of the number of distinct values of an attribute in a relation. We compare these new estimators to estimators from the database an...
MTA
2002
14 years 10 months ago
2002
Abstract. In this paper, we develop a content-based video classification approach to support semantic categorization, high-dimensional indexing and multi-level access. Our contribu...