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» Open Constraints in a Closed World
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ICDT
2012
ACM
293views Database» more  ICDT 2012»
11 years 9 months ago
On the complexity of query answering over incomplete XML documents
Previous studies of incomplete XML documents have identified three main sources of incompleteness – in structural information, data values, and labeling – and addressed data ...
Amélie Gheerbrant, Leonid Libkin, Tony Tan
LAWEB
2009
IEEE
14 years 2 months ago
Policy Based Protection and Personalized Generation of Web Content
Abstract—The World Wide Web offers easy sharing of information, but provides only few options for the protection of sensitive information and other sensitive resources. Tradition...
Sergej Zerr, Daniel Olmedilla, Juri Luca De Coi, W...
WADS
2001
Springer
137views Algorithms» more  WADS 2001»
13 years 11 months ago
Visual Ranking of Link Structures
Methods for ranking World Wide Web resources according to their position in the link structure of the Web are receiving considerable attention, because they provide the first e...
Ulrik Brandes, Sabine Cornelsen
ICSE
2009
IEEE-ACM
14 years 2 months ago
Toward deeply adaptive societies of digital systems
Modern societies are pervaded by computerized, heterogeneous devices designed for specific purposes, but also more and more often capable of interacting with other devices for en...
Antonio Carzaniga, Giovanni Denaro, Mauro Pezz&egr...
PODS
2008
ACM
178views Database» more  PODS 2008»
14 years 7 months ago
The chase revisited
We revisit the classical chase procedure, studying its properties as well as its applicability to standard database problems. We settle (in the negative) the open problem of decid...
Alin Deutsch, Alan Nash, Jeffrey B. Remmel