TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 OBS

The Working Group on Numerical Experimentation(WGNE), jointly established by the Joint Scientific Committee on the WCRP and the WMO Commission for Atmospheric Sciences(CAS) has the responsibility of fostering the development of atmospheric circulation models for use in weather prediction and climate studies on all time scales and diagnosing shortcomings. WGNE promotes co-ordinated numerical experimentation for validating model results, observed atmospheric properties, exploring the natural and forced variability and predictability of the atmosphere,(e. g the Atmospheric Model Intercomparison Project, AMIP), as well as studies aimed at refined numerical techniques, and the formulation of atmospheric physics processes. WGNE also monitors the advances in data assimilation and analysis methods and is the focal point in WCRP for encouraging and reviewing the reanalysis projects carried out at various centres with fixed state-of-the-art assimilation systems providing a multi-year homogenous data set for a range of atmospheric and climate diagnostic studies.  2, fiche 1, Anglais, - Working%20Group%20on%20Numerical%20Experimentation

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

VanLehn spends very little of his voluminous dissertation on demonstrating the coverage of his theory. Most of his effort goes into underlining its principled construction. First, he traces the performance of his model to a restricted set of sufficient principles, emphasizing that his design is transparent with respect to them. Second, he argues that these principles are necessary to the theory for empirical and explanatory adequacy by comparing them with potential competitors in what he calls competitive argumentation. In this context, it becomes essential to have well-defined processes by which modifications to the underlying principles propagate through the theory, via the kind of global constraints called entailments in REPAIR theory. VanLehn is now advocating his competitive argumentation as a general methodology for validating AI-based theories of human cognition(VanLehn et al., 1984). One of his central claims is that the contributions of a solid argumentation may well outlive the theory it was meant to support.  1, fiche 2, Anglais, - competitive%20argumentation

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol