Abstract: The paper used cloud modcl,and proposed a natural languagcbased fuzzy multiattributc cloud decision method. It includes mainly several parts as follows. First,the described rank cloud and the evaluated rank cloud respectively were presented to measure attribute rank and rank certainty degree. On the basis, cloud normalizing algorithm was presented to fuse several values of an attribute given by experts. Then, cloud aggregation algorithm was presented to integrate different attribute information and get every alternative value, and the most desirable alternative was selected according to their values. Cloud model can express the relationship between randomness and fuzziness, so the method is more effective to measure linguistic assessment information. Finally, a example with linguistic assessment information shows that the method is simple and feasible.

Key words: Cloud model, Multiattribute decision, Linguistic assessment information