The paper focuses on the question that ensures the completeness of the information and the authenticity of the conclusions, which is based on S-rough sets from the perspective of three-way decisions. In order to make a rational decision by the dynamic information, the multi-users S-rough sets model based on three-way decisions is proposed. Subsequently, in the case of incomplete information, the paper gives an application of the model, which may indicate usefulness of the model and prove that it is the new approach to deal with the relevant problem of uncertainty information provided by multiple users.
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