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» DATALOG with Nested Rules
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148
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LPNMR
1999
Springer
15 years 10 months ago
On the Role of Negation in Choice Logic Programs
We introduce choice logic programs as negation-free datalog programs that allow rules to have exclusive-only (possibly empty) disjunctions in the head. Such programs naturally mod...
Marina De Vos, Dirk Vermeir
179
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TABLEAUX
2009
Springer
16 years 10 days ago
Modular Sequent Systems for Modal Logic
We see cut-free sequent systems for the basic normal modal logics formed by any combination the axioms d, t, b, 4, 5. These systems are modular in the sense that each axiom has a c...
Kai Brünnler, Lutz Straßburger
JAR
2010
122views more  JAR 2010»
15 years 18 days ago
Partial and Nested Recursive Function Definitions in Higher-order Logic
Based on inductive definitions, we develop a tool that automates the definition of partial recursive functions in higher-order logic (HOL) and provides appropriate proof rules for ...
Alexander Krauss
EDBT
2009
ACM
98views Database» more  EDBT 2009»
16 years 18 days ago
A runtime approach to model-independent schema and data translation
A runtime approach to model-generic translation of schema and data is proposed. It is based on our previous work on MIDST, a platform conceived to perform translations in an off-...
Paolo Atzeni, Luigi Bellomarini, Francesca Bugiott...
PODS
2010
ACM
159views Database» more  PODS 2010»
15 years 7 months ago
On probabilistic fixpoint and Markov chain query languages
We study highly expressive query languages such as datalog, fixpoint, and while-languages on probabilistic databases. We generalize these languages such that computation steps (e....
Daniel Deutch, Christoph Koch, Tova Milo