A novel method to use fuzzy soft sets in decision making based on ambiguity measure and Dempster-Shafer theory of evidence: An application in medical diagnosis

Highlights • An improved fuzzy soft set-based decision making approach based on the ambiguity measure is proposed. • Uncertain information in medical diagnosis can be modeled and fused by evidence theory. • The reasonable ambiguity measure reduces the uncertainty degree in the decision making process • The effectiveness of the model is demonstrated in medical decision.