Sciweavers

591 search results - page 20 / 119
» The complexity of XPath query evaluation
Sort
View
ICDE
2004
IEEE
137views Database» more  ICDE 2004»
14 years 10 months ago
Selectivity Estimation for XML Twigs
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...
Neoklis Polyzotis, Minos N. Garofalakis, Yannis E....
DILS
2006
Springer
14 years 15 days ago
On Querying OBO Ontologies Using a DAG Pattern Query Language
The Open Biomedical Ontologies (OBO) is a consortium that serves as a repository of ontologies that are structured like directed acyclic graphs. In this paper we present a language...
Amarnath Gupta, Simone Santini
CIKM
2005
Springer
14 years 2 months ago
Structured queries in XML retrieval
Document-centric XML is a mixture of text and structure. With the increased availability of document-centric XML content comes a need for query facilities in which both structural...
Jaap Kamps, Maarten Marx, Maarten de Rijke, Bö...
IDEAS
2005
IEEE
111views Database» more  IDEAS 2005»
14 years 2 months ago
Evaluation of Queries on Tree-Structured Data Using Dimension Graphs
The recent proliferation of XML-based standards and technologies for managing data on the Web demonstrates the need for effective and efficient management of treestructured data....
Theodore Dalamagas, Dimitri Theodoratos, Antonis K...