The GAIA framework prototype, described herein, explores the possibilities and problems that arise when combining versioning and open hypermedia paradigms. It will be argued that it by adding versioning as a separate service in the hypermedia architecture – is possible to build consistent versioning of both documents and hyperstructure. This approach eases some of the problems inherent in separ...

I. Ladeira , I. Carvalho , A. Correia , A. Carvalho , R. Duarte a,b,c,d,e a Pulmonology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho (CHVNG), Vila Nova de Gaia, Portugal b Center of Pulmonology Diagnostics (CDP), Vila Nova de Gaia, Portugal c Public Health Department, ARS Norte, I.P. Porto, Portugal d Department of Epidemiology, Preventive Medicine and Health of Medicine Faculty, ...

In recent years Java has matured to a stable easy-to-use language with the flexibility of an interpreter (for reflection etc.) but the performance and type checking of a compiled language. When we started using Java for astronomical applications around 1999 they were the first of their kind in astronomy. Now a great deal of astronomy software is written in Java as are many business applications...

This article illustrates the application of the Gaia methodology to the development of a system for Selective Dissemination of Information on the Web, as well as the integration of Gaia with AUML. This allows a concrete design closer to implementation and the developer offers a better insight into the multiagent system that is being built. Gaia is an agent-oriented organisational methodology th...

Abstract PROMETHEE is an important method for multi-criteria decision-making. Inspired by ensemble methods, this paper proposes an ensemble PROMETHEE II model, in which multiple preference functions are used to reduce the risk of choosing a particularly preference function. One example of competitiveness evaluation of the ports of Circum-Bohai-Sea is included to illustrate the proposed method. ...

We discuss possible options for the acquisition of radial velocities in parallel with the astrometric data for the global astrometry mission GAIA, currently under study in the framework of the scienti c programme of the European Space Agency. The scienti c rationale of a parallel radial velocity programme, in the light of the recent evolution of the GAIA concept toward signi cantly fainter magn...

This paper presents RE4Gaia, which is a requirements modeling approach for the development of multi-agent systems that extends the Gaia methodology. The approach focuses on dealing with the organizational structure as a means to adequately capture and understand required roles and associated functions in the context of an organization prior to the analysis and design of MAS using Gaia. In addit...

The GAIA Observatory, ESA's Cornerstone 6 mission, addresses the origin and evolution of our Galaxy, and a host of other scientific challenges. GAIA will provide unprecedented positional and radial velocity measurements with the accuracies needed to produce a stereoscopic and kinematic census of about one billion stars in our Galaxy and throughout the Local Group, about one per cent of the Gala...

GAIA is the " super-Hipparcos " satellite scheduled for launch in 2010 by the European Space Agency. It is a scanning satellite that carries out multi-colour, multi-epoch pho-tometry on all objects brighter than 20th magnitude. We conduct detailed simulations of supernovae (SNe) detection by GAIA. Supernovae of each type are chosen according to the observed distributions of absolute magnitudes,...

Lenton and Wilkinson (2003), in response to me (Volk, 2002), have offered a number of important ideas for a Gaia theory of ‘regulatory feedbacks’ between life and the global environment. After what are generally positive comments on a selection of their concepts, I focus my reply on one specific point of disagreement. Contrary to the claim of Lenton and Wilkinson, nitrogen fixation is merely an...