Abstract

BAUER-MENGELBERG, Juan Ricardo  and  VEGA-RUIZ, Rafael. Algorithm that Executes Submodels of a Mathematical Model for Greater Efficiency. Ing. invest. y tecnol. [online]. 2015, vol.16, n.4, pp.551-563. ISSN 2594-0732.

The topic arises in an informing service called FLAG (cash flow in agribusinesses) that offers its clients mathematical models consisting of his own variables as well as others from his business environment. FLAG obtains updated values of the latter with the frequency determined by the client, and computes the values of the other variables, thus providing the client with the impact of the changes in the indicators he includes in his model. The methods used to increase the efficiency of the calculations of a mathematical model containing a number of formulae through which the values of its variables are computed are described. It consists of operations to be performed on its operands, variables of the model. The need to reduce processing times results from the processing of several models, where the total duration is limited by constrains of the system that invokes such executions. The algorithms are built to minimize input-output operation. Additionally, whenever the model is invoked by a change of a single variable, only the submodel, consisting of the variables that were directly or indirectly affected by the change, are calculated. Executions of models prepared to confirm the efficacy of the improvements show reductions of up to 90%.

Keywords : mathematical model; tree; submodels; informing service.

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