针对综合集成研讨厅进行复杂决策问题研讨时，群体专家提出的众多定性意见最终如何实现收敛的问题，提出了基于交互式遗传算法模型的群体论证方法，使专家的群体思维与计算机技术紧密结合，达成共识。实践证明，该方法可以较好地获得复杂决策问题的优化解，且更符合实际的研讨论证过程。

Complex decision-making problem discussion in hall for workshop of metasynthetic engineering (HWME) requires that the experts` qualitative opinions should be converged in the end. To investigate the problem of how to converge their opinions, an approach of expert group discussion is proposed on the base of the model of interactive genetic algorithms, in which expert group thought and the computer technology are integrated tightly and the mutual recognition of community opinion is reached. Practices show that the optimal solution of complicated decision-making problem is obtained easily, and the approach is effective and in accord with the practical discussion process.