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IJCSA
2007
143views more  IJCSA 2007»
13 years 9 months ago
Incremental Trade-Off Management for Preference-Based Queries
Preference-based queries often referred to as skyline queries play an important role in cooperative query processing. However, their prohibitive result sizes pose a severe challen...
Wolf-Tilo Balke, Ulrich Güntzer, Christoph Lo...
CONCUR
2009
Springer
14 years 4 months ago
Partially-Commutative Context-Free Processes
Bisimulation equivalence is decidable in polynomial time for both sequential and commutative normed context-free processes, known as BPA and BPP, respectively. Despite apparent sim...
Wojciech Czerwinski, Sibylle B. Fröschle, Sla...
BMCBI
2004
126views more  BMCBI 2004»
13 years 9 months ago
A probabilistic model for the evolution of RNA structure
Background: For the purposes of finding and aligning noncoding RNA gene- and cis-regulatory elements in multiple-genome datasets, it is useful to be able to derive multi-sequence ...
Ian Holmes
ACTAC
1998
71views more  ACTAC 1998»
13 years 9 months ago
On the Information Content of Semi-Structured Databases
In a semi-structured database there is no clear separation between the data and the schema, and the degree to which it is structured depends on the application. Semi-structured da...
Mark Levene
FASE
2007
Springer
14 years 4 months ago
Information Preserving Bidirectional Model Transformations
Abstract. Within model-driven software development, model transformation has become a key activity. It refers to a variety of operations modifying a model for various purposes such...
Hartmut Ehrig, Karsten Ehrig, Claudia Ermel, Frank...