abstract = "Analytic models of two computer generated time series
(Logistic map and Rossler system) and two real time
series (ion saturation current in Aditya Tokamak plasma
and NASDAQ composite index) are constructed using
Genetic Programming (GP) framework. In each case, the
optimal map that results from fitting part of the data
set also provides a very good description of rest of
the data. Predictions made using the map iteratively
range from being very good to fair.",