413 search results - page 37 / 83 » Optimizing Queries Across Diverse Data Sources |
BIBE
2004
IEEE
15 years 1 months ago
2004
IEEE
Numerous genomic annotations are currently stored in different web-accessible databanks that scientists need to mine with user-defined queries and in a batch mode to orderly integ...
112
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BDA
2004
14 years 11 months ago
2004
XQuery is the emerging standard for querying XML data sources. XLive is a light XML/XQuery mediator developed at University of Versailles whose engine processes an XML algebra der...
103
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CIDR
2007
14 years 11 months ago
2007
We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
This paper addresses the efficient processing of top-k queries in wide-area distributed data repositories where the index lists for the attribute values (or text terms) of a query...
WWW
2009
ACM
15 years 4 months ago
2009
ACM
As an alternative to previous studies on extracting class attributes from unstructured text, which consider either Web documents or query logs as the source of textual data, A boo...