Abstract: This paper provides a model for choosing excellent sellers，using buyer agents standing for buyers and seller agents standing for sellers.With the model，the buyer agent can learn to identify trustworthy buyer agent friends，and combining the information from them and the its own experience，it can identify high quality，low priced sellers in the complex electronic markets.We conduct experiments to confirm that the proposed model is able to accurately identify the trustworthy buyer friends and can choose the excellent seller in the complex electronic markets.Besides，this paper also shows that the agent with this model has higher gain than that with buyer agent acting alone.

摘要： 基于多智能体协同选择提出了一种导购选择模型，该模型可识别其他可信买方智能体（“值得信赖的朋友”），并将它们关于卖方的信息结合自身关于卖方的信息综合起来协同选择质高价低的卖方，从而实现高质量的导购性能。构建了一个存在多种类型的买方和卖方的购物模拟环境，并进行了多组实验。实验结果表明，该模型可以准确地识别可信买方智能体，并可在复杂的购物环境中高效地选择出优质卖方。此外，实验结果还表明，有了该模型，单个买方智能体选择优质卖方的能力要明显高于无多智能体协同选择情况下单个买方智能体的选择能力。