Evolutionary Learning Processes for Data

In Spain, electrical industries do not charge the energy bill directly to the nal user, but they share the ownership of an enterprise (called R.E.E., Red El ectrica de Espa~ na) which gets all payments and then distributes them according to some complex criteria (amount of power generation of every company, number of customers, etc.) Recently, some of these companies have asked to redistribute the maintenance costs of the network. Since maintenance costs depend on the total length of electrical line each company owns, and on their kind (high, medium, urban low and rural low voltage) it was necessary to know the exact length of every kind of line each company was maintaining. High and medium voltage lines can be easily measured. But low voltage line is contained in cities and villages, and it would be very expensive to measure it. This kind of line uses to be very convoluted and, in some cases, one company may serve more than 10000 small nuclei. An indirect method for determining the length of line is