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CSL
2009
Springer
15 years 9 months ago
Fixed-Point Definability and Polynomial Time
My talk will be a survey of recent results about the quest for a logic capturing polynomial time. In a fundamental study of database query languages, Chandra and Harel [4] first ra...
Martin Grohe
ECAI
1998
Springer
15 years 9 months ago
Description Logics with Concrete Domains and Aggregation
Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...
Franz Baader, Ulrike Sattler
CSL
2007
Springer
16 years 8 hour ago
On the Complexity of Reasoning About Dynamic Policies
We study the complexity of satisfiability for DLP+ dyn , an expressive logic introduced by Demri that allows to reason about dynamic policies. DLP+ dyn extends the logic DLPdyn of...
Stefan Göller
TARK
2007
Springer
15 years 12 months ago
What can we achieve by arbitrary announcements?: A dynamic take on Fitch's knowability
Public announcement logic is an extension of multi-agent epistemic logic with dynamic operators to model the informational consequences of announcements to the entire group of age...
Philippe Balbiani, Alexandru Baltag, Hans P. van D...
IAT
2009
IEEE
15 years 9 months ago
Combining Boolean Games with the Power of Ontologies for Automated Multi-attribute Negotiation in the Semantic Web
Recently, multi-attribute negotiation has been extensively studied from a game-theoretic viewpoint. Since normal and extensive form games have the drawback of requiring an explicit...
Thomas Lukasiewicz, Azzurra Ragone