MODEL (Retrodictive)
Charles François (2004). MODEL (Retrodictive), International Encyclopedia of Systems and Cybernetics, 2(2): 2150.
| Collection | International Encyclopedia of Systems and Cybernetics |
|---|---|
| Year | 2004 |
| Vol. (num.) | 2(2) |
| ID | ◀ 2150 ▶ |
| Object type | Methodology or model |
A model whose use allows the rediscovery of past states of the system, with a reasonable degree of reliability.
A good retrodictive model, just as a predictive one, depends on the existence of a reliable knowledge of the dynamics of the system and its environmental conditions, normally to be obtained by inference from sufficient data during a sufficient lapse of time. (But, how does one makes sure of what is “sufficient”?).
All in all, retrodiction supposes a well defined basic deterministic hypothesis. If the system is ergodic, or still worse, chaotic, precise retrodiction is impossible.