Exact(1)
However, when interpreting the results of these simulations, it is important to note the many assumptions that have been made in defining the model and assigning parameter values.
Similar(59)
This shows, from a complex systems simulation perspective, how the same agent model by limited variations in assigned parameter values demonstrates qualitatively different results.
At initialization, genomes contain a collection of genes with randomly assigned parameter values, with an average size of ten genes.
The presence of a number of parameters in our mathematical framework warranted a sensitivity analysis as to how the assigned parameter values affected the final computational results.
Note that expression is a function of the combined effect of constant, age-dependent and stochastic terms, with their relative contribution depending on the assigned parameter values.
Their system uses third-party data resources accessible over the Internet to elaborate and parametrize (that is, assign parameter values to) computational models in a semi-automated manner.
In this analysis, published SD values for the fraction of lipids in infant adipose tissue (0.12), the fraction of lipids in breast milk (0.0032), and the daily ingested breast milk consumption (0.038 L/kg infant body weight/day) were used to randomly assign parameter values in each iteration, assuming normal distributions (Arcus-Arth et al. 2005; Bitman et al. 1983; White et al. 1991).
For example, models have been used as the input for workflows: qualitative models can, through a series of sequential operations involving Internet-accessible resources, be annotated to external resources, parameterized using experimental data, and processed to optimize assigned parameter values and generate results in a format-agnostic manner.
Additionally, during execution of a model actors can be reconfigured by changing their connections or assigning new parameter values.
Use of more complicated functions would involve higher computation costs and difficulties in assigning their parameter values.
Probability distributions were assigned as follows [ 27]: (i) beta-distributions were assigned where parameter values ranged between zero and one, such as in probability and utility parameters, (ii) gamma-distributions were specified when parameter values were above zero and positively skewed, such as in costs, and (iii) a log-normal distribution was used for survival parameters.
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