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One of the challenging problems that Web service technology faces is the ability to effectively discover services based on their capabilities. We present an approach to tackle this problem in the context of DAML-S ontologies of services. The proposed approach enables to select the combinations of Web services that best match a given request Q and(More)
Given that e-catalogs are often autonomous and heterogeneous, effectively integrating and querying them is a delicate and time-consuming task. More importantly, the number of e-catalogs to be integrated and queried may be large and continuously changing. Conventional approaches where the development of an integrated e-catalog requires the understanding of(More)
One of the challenging problems that web service technology faces is the ability to effectively discover services based on their capabilities. We present an approach to tackle this problem in the context of description logics (DL). We formalize service discovery as a new instance of the problem of rewriting concepts using terminologies. We call this new(More)
We investigate the problem of dynamic discovery of e-services, important in the loosely coupled vision of e-commerce. We show that it can be viewed as a new important reasoning technique in Description Logics: it can be viewed as a new instance of the problem of rewriting concepts using terminologies which generalizes problems such as rewriting queries(More)
For the last decades, three trends have grown and reinforced each other: the fast growth of hardware computational capacities, the requirement of finer and larger finite element models for industrial simulations and the development of efficient computational strategies amongst which non-overlapping domain decomposition (DD) methods [2, 3, 4] are very(More)
More and more suppliers are offering access to their product or information portals (also called e-catalogs) via the Web. The key issue is how to efficiently integrate and query large, intricate, heterogeneous information sources such as e-catalogs. Traditional data integration approach, where the development of an integrated schema requires the(More)
As part of the MKBEEM project, we present an ontology based mediation framework for electronic commerce applications. The framework is based on a mediator/wrapper approach that supports an integrated view over multiple heterogeneous sources. The MKBEEM mediation system allows to fill the gap between customers queries (possibly expressed in a natural(More)