Fuzzy sets and fuzzy logic: theory and applications
Fuzzy sets and fuzzy logic: theory and applications
Communications of the ACM
A model of multimedia information retrieval
Journal of the ACM (JACM)
The description logic handbook: theory, implementation, and applications
The description logic handbook: theory, implementation, and applications
The description logic handbook
Tractable Reasoning and Efficient Query Answering in Description Logics: The DL-Lite Family
Journal of Automated Reasoning
Fuzzy matchmaking in e-marketplaces of peer entities using Datalog
Fuzzy Sets and Systems
Using Fuzzy DLs to Enhance Semantic Image Analysis
SAMT '08 Proceedings of the 3rd International Conference on Semantic and Digital Media Technologies: Semantic Multimedia
EL description logics with aggregation of user preference concepts
Proceedings of the 2007 conference on Information Modelling and Knowledge Bases XVIII
Reasoning within fuzzy description logics
Journal of Artificial Intelligence Research
Reasoning with very expressive fuzzy description logics
Journal of Artificial Intelligence Research
Fuzzy description logics with general t-norms and datatypes
Fuzzy Sets and Systems
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
Extending Datatype Restrictions in Fuzzy Description Logics
ISDA '09 Proceedings of the 2009 Ninth International Conference on Intelligent Systems Design and Applications
Comparison of Scoring and Order Approach in Description Logic $\mathcal{EL(D)}$
SOFSEM '10 Proceedings of the 36th Conference on Current Trends in Theory and Practice of Computer Science
Applied Fuzzy Arithmetic: An Introduction with Engineering Applications
Applied Fuzzy Arithmetic: An Introduction with Engineering Applications
Towards top-k query answering in description logics: the case of DL-Lite
JELIA'06 Proceedings of the 10th European conference on Logics in Artificial Intelligence
Towards a fuzzy description logic for the semantic web (preliminary report)
ESWC'05 Proceedings of the Second European conference on The Semantic Web: research and Applications
Positive subsumption in fuzzy EL with general t-norms
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
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Fuzzy Description Logics (fuzzy DLs) are extensions of classic DLs that are capable of representing and reasoning with imprecise and vague knowledge. Though reasoning algorithms for very expressive fuzzy DLs have been developed and optimizations have started to be explored, the efficiency of such systems is still questionable, and the study of tractable languages is an interesting open issue. In this paper we introduce a tractable fuzzy extension of $\mathcal{EL}^{++}$ . We present its syntax and semantics together with a reasoning algorithm for the fuzzy concept subsumption problem to which other problems can be reduced.