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» Modal Logics are Coalgebraic
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DLOG
2007
15 years 8 days ago
Modal Logic Applied to Query Answering and the Case for Variable Modalities
We present a query answering technique based on notions and results from modal Correspondence Theory. It allows us to answer a wide family of conjunctive queries by polynomial redu...
Evgeny Zolin
APAL
2007
104views more  APAL 2007»
14 years 10 months ago
Non-well-founded trees in categories
Non-well-founded trees are used in mathematics and computer science, for modelling non-well-founded sets, as well as non-terminating processes or infinite data structures. Catego...
Benno van den Berg, Federico De Marchi
KI
2008
Springer
14 years 10 months ago
Shallow Models for Non-iterative Modal Logics
Abstract. Modal logics see a wide variety of applications in artificial intelligence, e.g. in reasoning about knowledge, belief, uncertainty, agency, defaults, and relevance. From ...
Lutz Schröder, Dirk Pattinson
CORR
2011
Springer
222views Education» more  CORR 2011»
14 years 5 months ago
Generic Trace Logics
Finite trace semantics is known and well understood for classical automata and non-deterministic labelled transition systems. Jacobs et al introduced a more general definition fo...
Christian Kissig, Alexander Kurz
IJCAI
1997
14 years 11 months ago
A Set-Theoretic Approach to Automated Deduction in Graded Modal Logics
In the paper, we consider the problem of supporting automated reasoning in a large class of knowledge representation formalisms, including terminological and epistemic logics, who...
Angelo Montanari, Alberto Policriti