关键词: 研讨模型, 发言节点可接受度, 节点归约, 语言加权集结算子

Abstract: Argumentation model is the theoretical basis to establish group argumentation environment. Based on Issue-Based Information System (IBIS) model and Toulmin' argument schema, a group argumentation model was proposed, which was able to evaluate the argumentative utterance. With this model, the group argumentative information could be structured as a graph which consisted of utterance nodes and semantic links. A method of evaluating utterance nodes based on Language Weighted Aggregation (LWA) operator and node reduction was proposed. A group argumentation on the issue of system architecture design was illustrated as an example to show the usability and effectiveness of the proposed model.

Key words: argumentation model, acceptability degree of utterance node, node reduction, Language Weighted Aggregation (LWA) operator