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CIKM
2011
Springer
12 years 8 months ago
Semantic data markets: a flexible environment for knowledge management
We present Nyaya, a system for the management of Semantic-Web data which couples a general-purpose and extensible storage mechanism with efficient ontology reasoning and querying ...
Roberto De Virgilio, Giorgio Orsi, Letizia Tanca, ...
EDOC
2003
IEEE
14 years 2 months ago
Model Transformation: A declarative, reusable patterns approach
The MOF Query, View and Transformation RFP, issued by OMG will result in a key enabling technology for modeldriven development of large distributed systems. We have designed a tra...
Keith Duddy, Anna Gerber, Michael Lawley, Kerry Ra...
GG
2004
Springer
14 years 2 months ago
Embedding in Switching Classes with Skew Gains
Abstract. In the context of graph transformation we look at the operation of switching, which can be viewed as an elegant method for realizing global transformations of (group-labe...
Andrzej Ehrenfeucht, Jurriaan Hage, Tero Harju, Gr...
DAWAK
2005
Springer
14 years 2 months ago
Optimizing a Sequence of Frequent Pattern Queries
Discovery of frequent patterns is a very important data mining problem with numerous applications. Frequent pattern mining is often regarded as advanced querying where a user speci...
Mikolaj Morzy, Marek Wojciechowski, Maciej Zakrzew...
ADBIS
2004
Springer
122views Database» more  ADBIS 2004»
14 years 2 months ago
Implementing a Query Language for Context-Dependent Semistructured Data
Abstract. In today’s global environment, the structure and presentation of information may depend on the underlying context of the user. To address this issue, in previous work w...
Yannis Stavrakas, Kostis Pristouris, Antonis Efand...