Ontologies play a crucial role in the development of the Semantic Web as a means for
defining shared terms in web resources. They are formulated in web ontology languages …

In this paper we present a fuzzy version of SHOIN (d), the corresponding Description Logic
of the ontology description language OWL DL. We show that the representation and …

This book is the first to combine coverage of fuzzy logic and Semantic Web languages. It
provides in-depth insight into fuzzy Semantic Web languages for non-fuzzy set theory and …

Classical ontologies are not suitable to represent vague pieces of information, which has
lead to the birth of Fuzzy Description Logics as an appropriate formalism to represent this …

We present a fuzzy version of description logics with concrete domains. Main features are:(i)
concept constructors are based on t-norm, t-conorm, negation and implication;(ii) concrete …

Managing uncertainty and/or vagueness is starting to play an important role in Semantic
Web representation languages. Our aim is to overview basic concepts on representing …

This short paper intends first to emphasize the basic distinction between gradual truth and
uncertainty, and its relevance when dealing with classification. Then, the representation …

Fuzzy Description Logics (fuzzy DLs) have been proposed as a language to describe
structured knowledge with vague concepts. In [19], a solution based on Mixed Integer Linear …

There are numerous semantic web applications where dealing with vagueness and
imprecision plays an important role. Some examples of such applications are (i) multimedia …

Information imprecision and uncertainty exist in many real world applications, and such
information would be retrieved, processed, shared, reused, and aligned in the maximum …