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ACL
1989
14 years 11 months ago
A Three-Valued Interpretation of Negation in Feature Structure Descriptions
Feature structures are informational elements that have been used in several linguistic theories and in computational systems for natural-language processing. A logicaJ calculus h...
Anuj Dawar, K. Vijay-Shanker
IAT
2009
IEEE
15 years 4 months ago
Computing Information Minimal Match Explanations for Logic-Based Matchmaking
Abstract—In semantic matchmaking processes it is often useful, when the obtained match is not full, to provide explanations for the mismatch, to leverage further interaction and/...
Tommaso Di Noia, Eugenio Di Sciascio, Francesco M....
CADE
2007
Springer
15 years 10 months ago
System Description: E-KRHyper
The E-KRHyper system is a model generator and theorem prover for first-order logic with equality. It implements the new E-hyper tableau calculus, which integrates a superposition-b...
Björn Pelzer, Christoph Wernhard
FROCOS
2009
Springer
15 years 4 months ago
DL-Lite with Temporalised Concepts, Rigid Axioms and Roles
We investigate the temporal extension of the description logic DL-Lite(RN ) bool with the until operator on concepts, rigid (time-independent) and local (time-dependent) roles, and...
Alessandro Artale, Roman Kontchakov, Vladislav Ryz...
FSTTCS
2005
Springer
15 years 3 months ago
Fixpoint Logics on Hierarchical Structures
Hierarchical graph definitions allow a modular description of graphs using modules for the specification of repeated substructures. Beside this modularity, hierarchical graph de...
Stefan Göller, Markus Lohrey