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DASFAA
2007
IEEE
174views Database» more  DASFAA 2007»
16 years 23 days ago
Efficient Holistic Twig Joins in Leaf-to-Root Combining with Root-to-Leaf Way
Finding all the occurrences of a twig pattern on multiple elements in an XML document is a core operation for efficient evaluation of XML queries. Holistic twig join algorithms, Tw...
Guoliang Li, Jianhua Feng, Yong Zhang, Lizhu Zhou
VLDB
2005
ACM
85views Database» more  VLDB 2005»
15 years 12 months ago
Pattern Tree Algebras: Sets or Sequences?
XML and XQuery semantics are very sensitive to the order of the produced output. Although pattern-tree based algebraic approaches are becoming more and more popular for evaluating...
Stelios Paparizos, H. V. Jagadish
INEX
2004
Springer
15 years 11 months ago
Component Ranking and Automatic Query Refinement for XML Retrieval
Queries over XML documents challenge search engines to return the most relevant XML components that satisfy the query concepts. In a previous work[6] we described an algorithm to ...
Yosi Mass, Matan Mandelbrod
CORR
2011
Springer
183views Education» more  CORR 2011»
15 years 1 months ago
Pattern tree-based XOLAP rollup operator for XML complex hierarchies
—With the rise of XML as a standard for representing business data, XML data warehousing appears as a suitable solution for decision-support applications. In this context, it is ...
Marouane Hachicha, Jérôme Darmont
PODS
2000
ACM
221views Database» more  PODS 2000»
15 years 10 months ago
Fixed-Point Query Languages for Linear Constraint Databases
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Stephan Kreutzer