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在产学研相结合的创新体系下,知识主题的演化机制逐渐成为研究热点。针对已有研究主要关注于对学术界成果数量的趋势分析,并未将学术界和产业界的相互影响纳入研究范围的情况,引入协整分析和Granger检验方法,建立学术界和产业界的相互影响的因果分析模型。最后运用于“云计算”这一特定知识主题,用实例验证主题流行度的演化机制与一般规律。
Under the innovation system combining production, study and research, the evolution mechanism of the subject of knowledge has gradually become a research hotspot. In view of the fact that the existing research mainly focuses on the trend analysis of the number of academic achievements, it does not take the mutual influence between academia and industry into the research scope. Cointegration analysis and Granger test are introduced to establish the relationship between academia and industry Influence Causal Analysis Model. Finally, we apply the specific subject of “cloud computing” to verify the evolution mechanism and general rule of subject popularity.