The discussions about the oppositeness ofmeaning center upon the categories of multiple-incompatibility, complementarity,antonymy, and directional o.

Genetic algorithm for assignment reduction based on the tolerance relation of incomplete information system;

Attribute Reduction of Set-valued Information System Based on Tolerance Relation

Based on indiscernibility relation in rough set,several known relations extended are introduced,such as tolerance relation,non-symmetry similar relation,valued tolerance relation and limited tolerance relation.

The generating algorithm of the greatest compatible classes in a compatible relation;

Clustering on compatible relation

Meanwhile, the paper further studies and discusses the compatible relations and obtains several results.

In this paper, give a compatibility relation on the universal,we present the concept of the compatibility kernel, which is a localized compatibility block compared with the maximal compatibility block.

In this paper the relation of the compatibility relation on a set between the covering of a set have been dis-cussed.

This paper presented the conception of multinomial relativity,solved the problem of count for three,four and five terms generation polynomials of m-sequences used multinomial relativity,gained the expression of generation polynomial,lay a foundation for evaluating the security of encryption and communications system.