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» Twig Query Processing Under Concurrent Updates
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ICDE
2006
IEEE
94views Database» more  ICDE 2006»
11 years 11 months ago
Twig Query Processing Under Concurrent Updates
Christian Mathis, Theo Härder
EDBT
2009
ACM
113views Database» more  EDBT 2009»
12 years 4 days ago
Query ranking in probabilistic XML data
Twig queries have been extensively studied as a major fragment of XPATH queries to query XML data. In this paper, we study PXMLRANK query, (Q, k), which is to rank top-k probabili...
Lijun Chang, Jeffrey Xu Yu, Lu Qin
WEBDB
2004
Springer
154views Database» more  WEBDB 2004»
11 years 10 months ago
Twig Query Processing over Graph-Structured XML Data
XML and semi-structured data is usually modeled using graph structures. Structural summaries, which have been proposed to speedup XML query processing have graph forms as well. Th...
Zografoula Vagena, Mirella Moura Moro, Vassilis J....
VLDB
2007
ACM
229views Database» more  VLDB 2007»
11 years 11 months ago
Sum-Max Monotonic Ranked Joins for Evaluating Top-K Twig Queries on Weighted Data Graphs
In many applications, the underlying data (the web, an XML document, or a relational database) can be seen as a graph. These graphs may be enriched with weights, associated with t...
Yan Qi 0002, K. Selçuk Candan, Maria Luisa ...
DATESO
2008
131views Database» more  DATESO 2008»
11 years 6 months ago
Towards Cost-based Optimizations of Twig Content-based Queries
Abstract In recent years, many approaches to indexing XML data have appeared. These approaches attempt to process XML queries efficiently and sufficient query plans are built for t...
Michal Krátký, Radim Baca
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