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» On the Expressiveness and Complexity of ATL
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CDES
2008
87views Hardware» more  CDES 2008»
13 years 10 months ago
Finding Minimal ESCT Expressions for Boolean Functions with Weight of up to 7
In this paper an algorithm is proposed for the synthesis and exact minimization of ESCT (Exclusive or Sum of Complex Terms) expressions for Boolean functions of up to seven comple...
Dimitrios Voudouris, Marinos Sampson, George K. Pa...
ICDT
2012
ACM
293views Database» more  ICDT 2012»
11 years 10 months ago
On the complexity of query answering over incomplete XML documents
Previous studies of incomplete XML documents have identified three main sources of incompleteness – in structural information, data values, and labeling – and addressed data ...
Amélie Gheerbrant, Leonid Libkin, Tony Tan
SEBD
2007
121views Database» more  SEBD 2007»
13 years 9 months ago
Query Answering in Expressive Variants of DL-Lite
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large am...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
ICDE
2003
IEEE
148views Database» more  ICDE 2003»
14 years 9 months ago
Efficient Computation of Subqueries in Complex OLAP
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
Michael H. Böhlen, Michael O. Akinde
BMCBI
2007
122views more  BMCBI 2007»
13 years 8 months ago
Dissecting complex transcriptional responses using pathway-level scores based on prior information
Background: The genomewide pattern of changes in mRNA expression measured using DNA microarrays is typically a complex superposition of the response of multiple regulatory pathway...
Harmen J. Bussemaker, Lucas D. Ward, André ...