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IDEAS
2003
IEEE
96views Database» more  IDEAS 2003»
14 years 1 months ago
Evaluating Nested Queries on XML Data
In the past few years, much attention has been paid to the study of semistructured data, i.e., data with irregular, possibly unstable, and rapidly changing structure, and, in part...
Carlo Sartiani
ICDE
2005
IEEE
124views Database» more  ICDE 2005»
14 years 2 months ago
SemCrypt - Ensuring Privacy of Electronic Documents Through Semantic-Based Encrypted Query Processing
The trend towards outsourcing increases the number of documents stored at external service providers. This storage model, however, raises privacy and security concerns because the...
Michael Schrefl, Katharina Grün, Jürgen ...
DBKDA
2010
IEEE
169views Database» more  DBKDA 2010»
14 years 1 months ago
XLeaf: Twig Evaluation with Skipping Loop Joins and Virtual Nodes
Abstract—XML indexing and search has become an important topic, and twig joins are key building blocks in XML search systems. This paper describes a novel approach using a nested...
Nils Grimsmo, Truls Amundsen Bjørklund, &Os...
SAC
2006
ACM
14 years 2 months ago
MTree: an XML XPath graph index
This paper introduces the MTree index algorithm, a special purpose XML XPath index designed to meet the needs of the hierarchical XPath query language. With the increasing importa...
P. Mark Pettovello, Farshad Fotouhi
GIS
2010
ACM
13 years 7 months ago
Ontuition: intuitive data exploration via ontology navigation
We present Ontuition, a system for mapping ontologies. Transforming data to a usable format for Ontuition involves recognizing and resolving data values corresponding to concepts ...
Marco D. Adelfio, Michael D. Lieberman, Hanan Same...