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DBPL
2007
Springer
102views Database» more  DBPL 2007»
16 years 25 days ago
A Theory of Stream Queries
Data streams are modeled as infinite or finite sequences of data elements coming from an arbitrary but fixed universe. The universe can have various built-in functions and predi...
Yuri Gurevich, Dirk Leinders, Jan Van den Bussche
ECAI
2004
Springer
16 years 2 days ago
An Ontology Based Visual Tool for Query Formulation Support
In this paper we describe the principles of the design and development of an intelligent query interface, done in the context of the SEWASIE (SEmantic Webs and AgentS in Integrated...
Tiziana Catarci, Paolo Dongilli, Tania Di Mascio, ...
DEXAW
2007
IEEE
124views Database» more  DEXAW 2007»
15 years 10 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
CORR
2010
Springer
140views Education» more  CORR 2010»
15 years 6 months ago
Evaluation of Query Generators for Entity Search Engines
Dynamic web applications such as mashups need efficient access to web data that is only accessible via entity search engines (e.g. product or publication search engines). However,...
Stefan Endrullis, Andreas Thor, Erhard Rahm
ICDM
2006
IEEE
132views Data Mining» more  ICDM 2006»
16 years 21 days ago
Mining for Tree-Query Associations in a Graph
New applications of data mining, such as in biology, bioinformatics, or sociology, are faced with large datasets structured as graphs. We present an efficient algorithm for minin...
Eveline Hoekx, Jan Van den Bussche