Ideally, frailty models should have both discriminative and evaluative properties, and should reliably reflect the natural history of aging [ 2].
Finally, for studying the evolution of development, models should have both conserved and unique features in comparison to related species, so that comparative studies can elucidate the mechanisms of phenotypic evolution [ 6].
On the other hand, the RIVM's task and interest was to deliver scientifically legitimate knowledge products and, to achieve this, both the necessity of stakeholders' involvement and publication of the risk models should have been considered.
"All the Street models should have reflected that deferred revenue because it's not a surprise".
When and if that is achieved, the models should have predictive, as well as descriptive, power.Already, understanding the net's scale-free structure has led to new results.
The recent price declines follow years of mild inflation that, according to many economic models, should have gradually picked up steam as the economy boomed in the second half of the 1990's.
Strictly speaking, all the neural networks models should have been reaction-diffusion partial differential equations.
The economic recession was unprecedented, so any economic models should have been taken with a (big) grain of salt.
Nevertheless, we think that having presented and described the four models should have helped the clarity of the exposition.
Acceptable models should have low RMSEC and RMSEP, high R, and small differences between RMSEC and RMSEP.
