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Model validation: Difference between revisions
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→The logical trap
(Created page with 'In fusion plasma physics, rather complex models are used to simulate, e.g., transport. In view of the large number of parameters of such models, the questio…') |
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It is therefore generally considered that NC theory has been validated via the correct prediction of the bootstrap current. | It is therefore generally considered that NC theory has been validated via the correct prediction of the bootstrap current. | ||
Second, the number of experiments for which 'A implies B' holds can be increased. E.g., if a model (A) is found to describe the obervations (B) for a large number of significantly different cases (experimental situations), then the validity of the model is enhanced; although it can never be ''proven'' that the model will always work in this way. Its validity will always remain subject to further testing. | Second, the number of experiments for which 'A implies B' holds can be increased. E.g., if a model (A) is found to describe the obervations (B) for a large number of significantly different cases (experimental situations), without 'tweaking' parameters, then the validity of the model is enhanced; although it can never be ''proven'' that the model will always work in this way. Its validity will always remain subject to further testing. | ||
== References == | == References == | ||
<references /> | <references /> | ||