Third-party mediation based bilateral multi-issue automated negotiation model

A genetic algorithm based bilateral multi-issue automated negotiation model with a third-party mediator agent, a L-K type synchronous offer protocol, a fairness-first and efficiency-second evaluation criterion C5, as well as an elite, a preferential and a random offer choice method is proposed. The experimental results show that: The model can be used to obtain a win-win negotiation result under the condition of private information; C5 fully reflects the negotiation principle of fairness-first and efficiencysecond, and it is easy to find Nash solution that fully reflects the principle by using this criterion; L and K are the key factors that affect the negotiation result, when L and K are small but valued appropriately, the elite offer choice method is the best offer choice method; Increasing both L and K can improve the negotiation result, and they play a complementary role with each other; When L is large enough, the negotiation results will no longer be affected by other factors, and Nash equilibrium offer will be the unique closed offer. © 2022, Editorial Board of Journal of Systems Engineering Society of China. All right reserved.