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» Combining Nonmonotonic Knowledge Bases with External Sources
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TPLP
2010
115views more  TPLP 2010»
13 years 4 months ago
Towards closed world reasoning in dynamic open worlds
The need for integration of ontologies with nonmonotonic rules has been gaining importance in a number of areas, such as the Semantic Web. A number of researchers addressed this p...
Martin Slota, João Leite
PADL
2010
Springer
14 years 2 months ago
Implementing Query Answering for Hybrid MKNF Knowledge Bases
Abstract. Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rule...
Ana Sofia Gomes, José Júlio Alferes,...
CORR
2011
Springer
186views Education» more  CORR 2011»
13 years 24 days ago
A Goal-Directed Implementation of Query Answering for Hybrid MKNF Knowledge Bases
Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rules use non...
Ana Sofia Gomes, José Júlio Alferes,...
ECSQARU
2005
Springer
13 years 11 months ago
Argument-Based Expansion Operators in Possibilistic Defeasible Logic Programming: Characterization and Logical Properties
Possibilistic Defeasible Logic Programming (P-DeLP) is a logic programming language which combines features from argumentation theory and logic programming, incorporating as well t...
Carlos Iván Chesñevar, Guillermo Ric...
KDD
2009
ACM
243views Data Mining» more  KDD 2009»
14 years 6 months ago
Exploiting Wikipedia as external knowledge for document clustering
In traditional text clustering methods, documents are represented as "bags of words" without considering the semantic information of each document. For instance, if two ...
Xiaohua Hu, Xiaodan Zhang, Caimei Lu, E. K. Park, ...