Abstract
The discovery of scientific laws is always built on
the basis of scientific experiments and observed data.
Any real world complex system must be controlled by
some basic laws, including macroscopic level,
submicroscopic level and microscopic level laws. How to
discover its necessity-laws from these observed data is
the most important task of data mining (DM) and KDD.
Based on the evolutionary computation, this paper
proposes a multi-level and multi -scale evolutionary
modeling system which models the macro-behavior of the
system by ordinary differential equations while models
the micro- behavior of the system by natural fractals.
This system can be used to model and predict the
scientific observed time series, such as observed data
of sunspot and precipitation of flood season, and
always get good results.
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