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» Logical Information Systems: from Taxonomies to Logics
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FSTTCS
2010
Springer
14 years 10 months ago
First-Order Logic with Reachability Predicates on Infinite Systems
This paper focuses on first-order logic (FO) extended by reachability predicates such that the expressiveness and hence decidability properties lie between FO and monadic second-o...
Stefan Schulz
EEE
2005
IEEE
15 years 5 months ago
DR-BROKERING - A Defeasible Logic-Based System for Semantic Brokering
Electronic Brokering, is a good candidate for taking up Semantic Web technology. In this paper we study the brokering and matchmaking problem that is, how a requester’s requirem...
Grigoris Antoniou, Thomas Skylogiannis, Antonis Bi...
MFCS
1999
Springer
15 years 4 months ago
A New Space Bound for the Modal Logics K4, KD4 and S4
We propose so called clausal tableau systems for the common modal logics K4, KD4 and S4. Basing on these systems, we give more efficient decision procedures than those hitherto kno...
Linh Anh Nguyen
CL
2000
Springer
15 years 4 months ago
Logic Program Synthesis in a Higher-Order Setting
We describe a system for the synthesis of logic programs from specifications based on higher-order logical descriptions of appropriate refinement operations. The system has been ...
David Lacey, Julian Richardson, Alan Smaill
CADE
2008
Springer
15 years 1 months ago
LogAnswer - A Deduction-Based Question Answering System (System Description)
LogAnswer is an open domain question answering system which employs an automated theorem prover to infer correct replies to natural language questions. For this purpose LogAnswer o...
Ulrich Furbach, Ingo Glöckner, Hermann Helbig...