Utility-based consensus analysis in non-homogeneous decision environment

In uncertain decision environment, multiple decision makers are always invited to give their preference information on alternatives. Different formats of preference information would be employed because of decision makers´ different culture and education backgrounds. In this study, six types of preference information are used by the decision makers and normalized into utility values. The individual preference information is aggregated into social opinions based on which the best alternative is selected. Group consensus is measured to verify the decision making process.