Some basic concepts and the essential control equations of non incremental algorithm based on the optimal control variational principle in mechanics are presented in this paper.

On the principle of non incremental algorithm, some basic ideas of process optimal control iterative algorithm, based on the optimal control variational principle in mechanics, is proposed in details.

Study of Rough Set Theory Based Incremental Algorithms and Its Application;

This paper proposes an incremental algorithm for the new reduction model.

According to the character of entropy diversification in the fields of information theory,improves three theorem of incremental decision trees and proves the validity and reliability of the new algorithm in the base of the original ID3 and incremental algorithm.

When link cost or topology changes,the increment algorithm is executed to update the network states,which merely computes and updates the affected links state instead of re-computing the whole route information of network.

The increment algorithm with limited gray-levels is improved.

An incremental algorithm of extracting rules in the rough set;

Based on indepth study of rough set theory,the relation between increase of objects and attribute reductions are analyzed carefully,a judgement theorem for attribute reductions of rough set with respect to increase a new object is obtained,from which an incremental algorithm is proposed and its time complexity is analyzed.

A CRM- oriented incremental algorithm based on the rough set theory is given in this paper to deal with the requirement resulted from the CRM domain.