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CIKM
2007
Springer
16 years 26 days ago
Effective keyword search for valuable lcas over xml documents
In this paper, we study the problem of effective keyword search over XML documents. We begin by introducing the notion of Valuable Lowest Common Ancestor (VLCA) to accurately and ...
Guoliang Li, Jianhua Feng, Jianyong Wang, Lizhu Zh...
AAAI
2007
15 years 9 months ago
DL-Lite in the Light of First-Order Logic
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large a...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
ICDT
2009
ACM
149views Database» more  ICDT 2009»
16 years 7 months ago
Query languages for data exchange: beyond unions of conjunctive queries
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
Juan Reutter, Marcelo Arenas, Pablo Barceló
COMAD
2009
15 years 7 months ago
Information Integration: Challenges and Approaches
The problem of information integration is discussed in the context of answering a query over the web. Querying the web requires that information from different web and other sourc...
Sharma Chakravarthy
ICIP
2002
IEEE
16 years 8 months ago
Optimal face reconstruction using training
In previous work [2] we considered the problem of image interpolation from an adaptive optimal recovery point of view. We showed how a training set S determines a quadratic signal...
D. Darian Muresan, Thomas W. Parks