Abstract: To improve the success rate of new product development,from the view of micro knowledge exchange among knowledge subjects,the process and rules of knowledge diffusion among knowledge subjects,collaborative teams and knowledge subjects and collaborative teams were researched.By consulting SIS epidemic propagation,the process of Collaborative Product Innovation System (CPIS) knowledge diffusion was depicted,and the traditional cellular automata method was improved to better reflect the knowledge diffusion in CPIS.The Knowledge-SIS (K-SIS) model of CPIS knowledge diffusion was proposed.Through simulating the K-SIS model,the CPI knowledge diffusion process and rule was studied.The results demonstrated that the knowledge accessibility among teams was positively correlated with the knowledge diffusion performance;the CPIS knowledge introduction strategy and distribution pattern of initial knowledge introduction teams had significant influence on knowledge diffusion performance,specifically,the over-concentration and over-decentralization were both bad for knowledge diffusion;the random distribution,which reflected the flat organization structure was conducive to knowledge diffusion,while the monopolistic distribution and the small group distribution were not good for knowledge diffusion.

Key words: collaborative product innovation system, knowledge diffusion, susceptible-infected-susceptible model, cellular automata

摘要： 为提高新产品开发的成功率,从知识主体微观知识交流活动的视角,研究了知识主体间、知识主体与协同团队间以及协同团队间的知识扩散过程和规律。借鉴SIS(susceptible-infected-susceptible)疫病传播思想对协同产品创新系统知识扩散过程进行描述,对传统元胞自动机方法进行改进,使其能够更好地反映协同产品创新系统中的知识扩散过程。构建了基于改进元胞自动机的协同产品创新系统知识扩散模型K-SIS,采用仿真方法研究协同产品创新系统知识扩散过程及规律。研究结果表明：团队间的知识可达性与知识扩散绩效正向相关;协同产品创新系统知识引入策略和知识引入团队分布模式对知识扩散绩效有显著影响,其中过度集中或分散的知识引入策略均不利于知识的有效扩散;知识引入团队随机型分布模式有利于知识扩散,垄断型分布与小团体型分布不利于知识扩散。

关键词: 协同产品创新系统, 知识扩散, SIS模型, 元胞自动机