Fuzzy Description Logics (f-DLs) have been proposed as extensions of classical Description Logics able to handle imprecise and vague knowledge. Although several extensions to expressive DLs have been proposed today and many reasoning algorithms exist there is still no scalable and efficient reasoning system reported, mainly due to inherited computational complexity from crisp DLs and the lack f...

Fuzzy Description Logics (Fuzzy DLs) are logics that allow to deal with structured knowledge affected by fuzziness. Fuzzy DLs are at the heart of Fuzzy OWL 2, a fuzzy version of the standard ontology language OWL 2. Although a relatively important amount of work has been carried out in the last years, fuzzy DLs are open to be extended with several features worked out in other fields. In particu...

Learning in Description Logics (DLs) has been paid increasing attention over the last decade. Several and diverse approaches have been proposed which however share the common feature of extending and adapting previous work in Concept Learning to the novel representation framework of DLs. In this paper we present a declarative modeling language for Concept Learning in DLs which relies on recent ...

Fundamental studies about differential limen (DL) for word-based speech rate variations in Japanese are described. In our previous study, the DLs are expressed by subtractive difference of mora duration. In this report, however, to fit the expression for various global speech rate, the DLs are expressed by variation ratio of mora duration. We carry out auditory tests with stimuli made by equall...

Résumé : Dans une ontologie de domaine, une association sémantique entre deux entités (concepts, attributs d’un concept) est une représentation d’un chemin ou d’un lien sémantique (LS) indirect entre elles. Un défi prometteur pour le Web sémantique est de développer des méthodes pour découvrir des données fortement liées dans un nombre important d’associations sémantiques rassemblées à partir d...

We investigate the extension of Description Logics (DL) with a notion of “substitution”. Substitutions naturally arise when reasoning about programs which modify graph structures that are characterized by DLs. They constitute also a means to express concept and role modifications such as addition or deletion of individuals (respectively, pairs of individuals) to or from concepts (respectively, ...

Online Social Networks usually provide no or limited way to access scholarly information provided by Digital Libraries (DLs) in order to share and discuss scholarly content with other online community members. The paper addresses the potentials of Social Networking Sites (SNSs) for science and proposes initial use cases as well as a basic bi-directional model called ScholarLib for linking SNSs ...

Zetasizer Nano application note MRK455-02 In the early 1990s, dynamic light scattering (DLS) was introduced as a screening tool for crystallography. Over the past decade DLS has become widely accepted in this role, and dynamic light scattering instruments are now routinely integrated into X-ray crystallography labs. A common misconception however, is that DLS can tell one which samples are like...

In Description Logics (DLs), both tableau-based and automata-based algorithms are frequently used to show decidability and complexity results for basic inference problems such as concept satisfiability. Whereas tableau-based algorithms usually yield worst-case optimal algorithms in the case of PSpace-complete logics, it is often very hard to design optimal tableau-based algorithms for ExpTime-c...

In this paper, we demonstrate the feasibility of using in situ Dynamic Light Scattering (DLS) to monitor counter-diffusion crystallization experiments in capillaries. Firstly, we have validated the quality of the DLS signal in thin capillaries, which is comparable to that obtained in standard quartz cuvettes. Then, we have carried out DLS measurements of a counter-diffusion crystallization expe...