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» On the Expressive Power of QLTL
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KRDB
2003
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15 years 7 months ago
On a Unifying Framework for Comparing Knowledge Representation Schemes
Given the numerous knowledge representation models (KR-schemes) that have been proposed, it would be desirable to have a formal, unifying model for the description of a KR-scheme,...
Giorgos Flouris, Dimitris Plexousakis, Grigoris An...
SCANGIS
2003
15 years 7 months ago
A Card-based Visual Query System for Geographical Information Systems
This paper introduces a visual query system for geographical information systems, which is easy to use for non-professional persons. The system creates a new iconic metaphor — a ...
Shiguang Ju, Weigang Guo, Héctor J. Hern&aa...
DAGSTUHL
1998
15 years 7 months ago
On Active Deductive Databases: The Statelog Approach
After brie y reviewing the basic notions and terminology of active rules and relating them to production rules and deductive rules, respectively, we survey a number of formal appro...
Georg Lausen, Bertram Ludäscher, Wolfgang May
DAGSTUHL
2000
15 years 7 months ago
Product Form Queueing Networks
Queueing network models have been extensively applied to represent and analyze resource sharing systems such as communication and computer systems and they have proved to be a pow...
Simonetta Balsamo
AAAI
1997
15 years 7 months ago
Complex Goal Criteria and Its Application in Design-to-Criteria Scheduling
Difficult real-time AI problems require a means for expressing multi-dimensional and dynamic goal criteria and a principled model for satisficing to best meet the criteria. In the...
Thomas Wagner, Alan Garvey, Victor R. Lesser