2016 年 31 巻 6 号 p. AG-B_1-9
Three-party multi-issue closed negotiation is an important class of real-life negotiations. Negotiation problems usually have constraints such as unknown opponent’s utility in real time and time discounting. Recently, the attention in this field has shifted from bilateral to multilateral approaches. In three-party negotiations, agents must simultaneously consider two opponents. We propose a negotiation strategy inspired by the analytic hierarchy process (AHP) extended to three-party negotiations by combining the opponents’ estimated utilities. The estimation of opponent utility is decided by counting the opponents’bids and the importance allocation. In addition, we propose the opponents’bids evaluation method, the concession function, and the acceptance strategy inspired by AHP. Experimental results demonstrate that our proposed method wins the higher social welfare than state-of-the-art negotiation strategies which are the top five agents in ANAC2015.
