Introduce partition close-degree into incomplete information system and redefine the importance of attributes,then based on partition close-degree,two new attribute reduction algorithms are proposed which can deal with incomplete information system.

Fuzzy approach degree-based research on occurrence of karstic collapse

Based on the conceptions of approach degree and weight distance, an improved model is developed for assessing the atmospheric environment quality in Urumqi, Xinjiang, in this paper.

In this paper, the distribution type can be judged conveniently from a group of test data with approach degree theory in Fuzzy mathematics.

Synthetical condition assessment of long span suspension bridge based on closeness degree and FAHP;

Conceptual design of relays based on the theory of fuzzy closeness degree;

And,the concept of closeness degree of fuzzy mathematics was used to compute the distance between the life cycle cost/effectiveness and the ideal point/negative ideal point.