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» An Efficient XPath Query Processor for XML Streams
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DATESO
2004
174views Database» more  DATESO 2004»
14 years 11 months ago
On Efficient Part-match Querying of XML Data
The XML language have been becoming de-facto a standard for representation of heterogeneous data in the Internet. From database point of view, XML is a new approach to data modelli...
Michal Krátký, Marek Andrt
PODS
2004
ACM
137views Database» more  PODS 2004»
15 years 9 months ago
On the Memory Requirements of XPath Evaluation over XML Streams
The important challenge of evaluating XPath queries over XML streams has sparked much interest in the past few years. A number of algorithms have been proposed, supporting wider f...
Ziv Bar-Yossef, Marcus Fontoura, Vanja Josifovski
ICDE
2007
IEEE
145views Database» more  ICDE 2007»
15 years 11 months ago
Rewriting Regular XPath Queries on XML Views
We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approa...
Wenfei Fan, Floris Geerts, Xibei Jia, Anastasios K...
ICEIS
2006
IEEE
15 years 3 months ago
Filtering Unsatisfiable XPATH Queries
The satisfiability test checks, whether or not the evaluation of a query returns the empty set for any input document, and can be used in query optimization for avoiding the submis...
Jinghua Groppe, Sven Groppe
DEXAW
2007
IEEE
124views Database» more  DEXAW 2007»
15 years 1 months ago
XML Query Optimisation: Specify your Selectivity
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...
Sven Hartmann, Sebastian Link