Hierarchical Estimator
In this paper, a new machine learning solution for function approximation is presented. It combines many simple and relatively inaccurate estimators to achieve high accuracy. It creates  in incremental manner  hierarchical, tree-like structure, adapting it to the specific problem being solved. As most variants use the errors of already constructed parts to direct further construction, it may be viewed as example of boosting  as understood in general sense. The influence of particular constituent estimator on the whole solutions output is not constant, but depends on the feature vector being evaluated. Provided in this paper are: general form of the metaalgorithm, a few specific, detailed solutions, theoretical basis and experimental results with one week power load prediction for country-wide power distribution grid and on simple test datasets.
hierarchical models neural networks nonlinear regression