title: [Similarity weight method and its application based on the attribute synthetic evaluation system].
abstract: OBJECTIVE
  To explore a way of determining the weights of variables in synthetic evaluation.
  
  
  METHODS
  Based on the attribute synthetic evaluation system, similarity weight was used to cluster and rank the atmospheric quality on 11 large cities.
  
  
  RESULTS
  Realized the classification and ranking for the atmospheric quality of the cities given, the results were almost comparable to that achieved by Topsis evaluation.
  
  
  CONCLUSIONS
  The method of comprehensive assessment using similarity weight in the attribute synthetic evaluation system seemed to be objective and rational. Not only it embodied the weights of variables involved, but also exploiting the information presented by the sample.
authors.affiliation: The Department of Mathematics, Shanxi Medical University, Taiyuan 030001, China.
authors.forename: Jian-Ming
authors.initials: JM
authors.lastname: Li
authors.forename: Cheng-Yi
authors.initials: CY
authors.lastname: Qu
authors.forename: Qing-Ou
authors.initials: QO
authors.lastname: Liu
mesh_terms: D000397:Air Pollution / Q000517:prevention & control / Q000706:statistics & numerical data*; D002681:China / Q000453:epidemiology; D003627:Data Interpretation, Statistical; D003657:Decision Making; D004784:Environmental Monitoring; D062665:Epidemiological Monitoring; D005069:Evaluation Studies as Topic; D006801:Humans; D008962:Models, Theoretical