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Beebe, Cameron (2018): Model-based computation. In: Natural Computing, Vol. 17, No. 2: pp. 271-281
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A brief analysis of analog computation is presented, taking into account both historical and more modern statements. I show that two very different concepts are tangled together in some of the literature-namely continuous valued computation and analogy machines. I argue that a more general concept, that of model-based computation, can help us untangle this misconception. A two-dimensional view of computation is offered, in which this model-based dimension is orthogonal to the dimension concerning the type of variables used in components. I argue that this is a useful framework for assessing alternative computing devices and computational claims in an expanding landscape of computation.