An important aspect in multi-agent cognitive systems is being able to provide negotiation facilities to agents. In this article we deal with this problem by presenting a formal environment allowing to specify preferences. Moreover, our framework describes how to perform exchanges among the entities involved in the system. The exchanges are not restricted to material goods, as we introduce capab...

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Communication processes in the commercial sectors are more and more using the services offered by the telecommunication industry. This is also due for the electronic data interchange (EDI) of business data which represents one of the most recent teleservices. This trend leads to the standardization of the data exchange, where EDIFACT (Electronic Data Interchange For Administration, Commerce and...

ERMANENT interchange heterozygosity is not a common phenomenon. Its Psuccess depends on conditions of two kinds, those internal and those external to the organism. The failure of interchange heterozygotes is generally attributed to their semisterility. Their fertility depends on such internal factors as the degree of multiple association and the orientation of the multiples at metaphase of meio...

Many companies are using model-based techniques to offer a competitive advantage in an increasingly globalised systems development industry. Central to model-based development is the concept of models as the basis from which systems are generated, tested and maintained. The availability of high-quality tools, and the ability to adopt and adapt them to the company practice, are important qualiti...

Critical conditions for the onset of fast interchange dynamics in the stressed geotail during the growth phase of the substorm are derived. We compare the ideal MHD interchange stability conditions (Hurricane, 1997) with kinetically modified interchange– ballooning motions. It is shown that fast interchange growth is possible only in the near–Earth boundary of the plasma sheet where the local p...

We present the C-STAR Italian Generator (XIG), a system for generating Italian text from the interlingua content representation (Interchange Format) adopted within the C-STAR II speech to speech translation project. The constraints of the application scenario led us to develop a generator based on Mixed Representations, providing a good trade-oo between exibility and eeciency.