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» Two-variable logic on data trees and XML reasoning
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ICALP
2007
Springer
14 years 1 months ago
Bounded Depth Data Trees
A data tree is a tree where each node has a label from a finite set, and a data value from a possibly infinite set. We consider data trees whose depth is bounded beforehand. By d...
Henrik Björklund, Mikolaj Bojanczyk
PODS
2007
ACM
171views Database» more  PODS 2007»
14 years 7 months ago
The complexity of reasoning about pattern-based XML schemas
In a recent paper, Martens et al. introduced a specification mechanism for XML tree languages, based on rules of the form r s, where r, s are regular expressions. Sets of such ru...
Gjergji Kasneci, Thomas Schwentick
ICALP
2005
Springer
14 years 29 days ago
Logics for Unranked Trees: An Overview
Labeled unranked trees are used as a model of XML documents, and logical languages for them have been studied actively over the past several years. Such logics have different purpo...
Leonid Libkin
ENTCS
2008
120views more  ENTCS 2008»
13 years 7 months ago
Reasoning about B+ Trees with Operational Semantics and Separation Logic
The B+ tree is an ordered tree structure with a fringe list. It is the most widely used data structure for data organisation and searching in database systems specifically, and, p...
Alan P. Sexton, Hayo Thielecke
ICDT
2003
ACM
127views Database» more  ICDT 2003»
14 years 20 days ago
On Reasoning about Structural Equality in XML: A Description Logic Approach
We define a boolean complete description logic dialect called DLFDreg that can be used to reason about structural equality in semistructured ordered data in the presence of docume...
David Toman, Grant E. Weddell