Sciweavers

46 search results - page 3 / 10
» Combinatorial Problems for Horn Clauses
Sort
View
FORTE
2008
13 years 8 months ago
Model Generation for Horn Logic with Stratified Negation
Abstract. Model generation is an important formal technique for finding interesting instances of computationally hard problems. In this paper we study model generation over Horn lo...
Ethan K. Jackson, Wolfram Schulte
ICLP
1990
Springer
13 years 11 months ago
Extending Definite Clause Grammars with Scoping Constructs
Definite Clause Grammars (DCGs) have proved valuable to computational linguists since they can be used to specify phrase structured grammars. It is well known how to encode DCGs i...
Remo Pareschi, Dale Miller
AIML
2004
13 years 8 months ago
On the Complexity of Fragments of Modal Logics
We study and give a summary of the complexity of 15 basic normal monomodal logics under the restriction to the Horn fragment and/or bounded modal depth. As new results, we show tha...
Linh Anh Nguyen
FUIN
2010
106views more  FUIN 2010»
13 years 4 months ago
Horn Knowledge Bases in Regular Description Logics with PTIME Data Complexity
Abstract. Developing a good formalism and an efficient decision procedure for the instance checking problem is desirable for practical application of description logics. The data c...
Linh Anh Nguyen
DIS
2003
Springer
14 years 19 days ago
Abduction and the Dualization Problem
Computing abductive explanations is an important problem, which has been studied extensively in Artificial Intelligence (AI) and related disciplines. While computing some abductiv...
Thomas Eiter, Kazuhisa Makino