A Group Decision Making Method for Construction Machinery Intellectual Property Product Recommendation Based on Consistency and Consensus

Aiming at the problem that it is difficult for construction machinery enterprises to choose intellectual property products, we propose a group decision making method for construction machinery intellectual property product recommendation based on consistency and consensus. We consider the consistency and consensus level simultaneously during the recommendation decision-making process and combined to judge whether the consistency/consensus level of experts reach a certain level. Using the feedback mechanism to change the preferences of experts when the consistency/consensus level is not high. When the consistency/consensus level reaches a certain level, we use the quantifier guided dominance degree (QGDD) and quantifier guided non-dominance degree (QGNDD) to select the suitable intellectual property product. Finally, we use an example to verify the validity and practicability of the method.