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» Representing and Querying Data Transformations
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DEBS
2009
ACM
15 years 8 months ago
Distributed complex event processing with query rewriting
The nature of data in enterprises and on the Internet is changing. Data used to be stored in a database first and queried later. Today timely processing of new data, represented ...
Nicholas Poul Schultz-Møller, Matteo Miglia...
WWW
2008
ACM
16 years 2 months ago
Querying for meta knowledge
The Semantic Web is based on accessing and reusing RDF data from many different sources, which one may assign different levels of authority and credibility. Existing Semantic Web ...
Bernhard Schueler, Sergej Sizov, Steffen Staab, Du...
AMW
2009
15 years 2 months ago
Identifying Algebraic Properties to Support Optimization of Unary Similarity Queries
Conventional operators for data retrieval are either based on exact matching or on total order relationship among elements. Neither of them is appropriate to manage complex data, s...
Mônica Ribeiro Porto Ferreira, Agma J. M. Tr...
IDEAS
2005
IEEE
137views Database» more  IDEAS 2005»
15 years 7 months ago
Order-Sensitive XML Query Processing over Relational Sources: An Algebraic Approach
The XML data is order-sensitive. The order problem, that is how ordered XML documents and order-sensitive queries over it can be efficiently supported when mapped into the unorde...
Ling Wang, Song Wang, Brian Murphy, Elke A. Runden...
CODES
2000
IEEE
15 years 5 months ago
Storage requirement estimation for data intensive applications with partially fixed execution ordering
In this paper, we propose a novel storage requirement estimation methodology for use in the early system design phases when the data transfer ordering is only partly fixed. At tha...
Per Gunnar Kjeldsberg, Francky Catthoor, Einar J. ...