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This paper is the research of S-rough recognition theory engrafted with information security theory. By using of assistant set in S-rough sets, this paper gives S-rough recognition structure of knowledge: rough recognition on the upper knowledge family R<sup>+</sup>, rough recognition on the lower knowledge family R<sup>-</sup>; gives S-rough recognition… (More)
AIM In order to supply a scientific basis for uniting the normal reference value standard of hemoglobin of Chinese middlescent women. METHODS A research is made about the relationship between the normal reference value of 25,917 examples of hemoglobin of middlescent women and altitude in 268 areas in China, the normal reference values of hemoglobin of… (More)
non-probabilistic-type entropy measure for rough fuzzy sets is proposed. It is a result of a geometric interpretation of rough fuzzy sets and using the method proposed by B. Kosko.It is also shown that the proposed measure can be defined in terms of the ratio of rough fuzzy cardinalities.