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» Complexity of Answering Queries Using Materialized Views
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CIKM
2010
Springer
14 years 9 months ago
Automatic schema merging using mapping constraints among incomplete sources
Schema merging is the process of consolidating multiple schemas into a unified view. The task becomes particularly challenging when the schemas are highly heterogeneous and autono...
Xiang Li 0002, Christoph Quix, David Kensche, Sand...
CIKM
2005
Springer
15 years 5 months ago
Structured queries in XML retrieval
Document-centric XML is a mixture of text and structure. With the increased availability of document-centric XML content comes a need for query facilities in which both structural...
Jaap Kamps, Maarten Marx, Maarten de Rijke, Bö...
STACS
2007
Springer
15 years 5 months ago
Testing Convexity Properties of Tree Colorings
A coloring of a graph is convex if it induces a partition of the vertices into connected subgraphs. Besides being an interesting property from a theoretical point of view, tests f...
Eldar Fischer, Orly Yahalom
SIGMOD
2002
ACM
108views Database» more  SIGMOD 2002»
15 years 12 months ago
An adaptive peer-to-peer network for distributed caching of OLAP results
Peer-to-Peer (P2P) systems are becoming increasingly popular as they enable users to exchange digital information by participating in complex networks. Such systems are inexpensiv...
Panos Kalnis, Wee Siong Ng, Beng Chin Ooi, Dimitri...
PODS
2005
ACM
109views Database» more  PODS 2005»
15 years 12 months ago
XPath satisfiability in the presence of DTDs
We study the satisfiability problem associated with XPath in the presence of DTDs. This is the problem of determining, given a query p in an XPath fragment and a DTD D, whether or...
Michael Benedikt, Wenfei Fan, Floris Geerts