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SIGMOD
2003
ACM
239views Database» more  SIGMOD 2003»
15 years 11 months ago
D(k)-Index: An Adaptive Structural Summary for Graph-Structured Data
To facilitate queries over semi-structured data, various structural summaries have been proposed. Structural summaries are derived directly from the data and serve as indices for ...
Chen Qun, Andrew Lim, Kian Win Ong
PODS
2005
ACM
109views Database» more  PODS 2005»
15 years 11 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
ICDT
2010
ACM
259views Database» more  ICDT 2010»
15 years 8 months ago
Forward-XPath and extended register automata on data-trees
We consider a fragment of XPath named `forward-XPath', which contains all descendant and rightwards sibling axes as well as data equality and inequality tests. The satisfiabi...
Diego Figueira
TOOLS
2009
IEEE
15 years 5 months ago
Guaranteeing Syntactic Correctness for All Product Line Variants: A Language-Independent Approach
A software product line (SPL) is a family of related program variants in a well-defined domain, generated from a set of features. A fundamental difference from classical applicati...
Christian Kästner, Sven Apel, Salvador Trujil...
JCDL
2009
ACM
115views Education» more  JCDL 2009»
15 years 5 months ago
Using timed-release cryptography to mitigate the preservation risk of embargo periods
Due to temporary access restrictions, embargoed data cannot be refreshed to unlimited parties during the embargo time interval. A solution to mitigate the risk of data loss has be...
Rabia Haq, Michael L. Nelson