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科技文献是科学研究的基础,展示文献中主题的演化过程有助于科研人员把握研究的脉络。针对某领域的科技文献,以构建时序主题链的方式来展现主题随时间变化的事实。为此,提出了主题间转移概率的计算方法和时序主题链的构建方法。实证研究选定国内管理科学领域三个核心期刊在2000-2011年间发表的4244篇论文进行实验,结果表明,时序主题链可以有效地展示主题随时间变化的过程,并能揭示主题演化过程中不同主题间的隐含关系。此外,通过分析时序主题链中的结构特征,还可揭示不同主题间的交叉融合特性。
Scientific literature is the basis of scientific research, showing the evolution of the subject in the literature helps researchers grasp the context of the study. Aiming at the scientific literature in a certain field, the theme of time theme is constructed by constructing the theme chain of time series. Therefore, the calculation method of the transition probability between topics and the construction method of the timing theme chain are proposed. The empirical study selected 4244 papers published in the three core journals in the field of management science in China from 2000 to 2011. The results show that the sequential topic chain can effectively show the process of the subject changing with time and reveal the difference between the evolution of the subject The implied relationship between the themes. In addition, by analyzing the structural features in the timing theme chain, we can also reveal the cross-integration features of different topics.